{"id":22458,"date":"2026-03-23T09:46:53","date_gmt":"2026-03-23T01:46:53","guid":{"rendered":"https:\/\/viox.com\/?p=22458"},"modified":"2026-03-23T09:49:27","modified_gmt":"2026-03-23T01:49:27","slug":"surge-suppressor-for-contactors","status":"publish","type":"post","link":"https:\/\/test.viox.com\/ja\/surge-suppressor-for-contactors\/","title":{"rendered":"\u30b3\u30f3\u30bf\u30af\u30bf\u7528\u30b5\u30fc\u30b8\u30a2\u30d6\u30bd\u30fc\u30d0\u306e\u9069\u5207\u306a\u9078\u5b9a\u65b9\u6cd5"},"content":{"rendered":"<div class=\"product-intro\">\n<p>\u4f4e\u96fb\u5727\u30b3\u30f3\u30bf\u30af\u30bf\u306f\u3001\u30e2\u30fc\u30bf\u5236\u5fa1\u306e\u4e3b\u529b\u3067\u3059\u3002\u8ca0\u8377\u3092\u8fc5\u901f\u304b\u3064\u78ba\u5b9f\u306b\u5207\u308a\u66ff\u3048\u308b\u80fd\u529b\uff08100\u4e07\u56de\u3092\u8d85\u3048\u308b\u96fb\u6c17\u7684\u8010\u4e45\u6027\u5b9a\u683c\uff09\u306b\u3088\u308a\u3001\u7523\u696d\u30aa\u30fc\u30c8\u30e1\u30fc\u30b7\u30e7\u30f3\u3001HVAC\u30b7\u30b9\u30c6\u30e0\u3001\u914d\u96fb\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u5b58\u5728\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3059\u3079\u3066\u306e\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30a4\u30d9\u30f3\u30c8\u306b\u306f\u96a0\u308c\u305f\u30b3\u30b9\u30c8\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u30b3\u30a4\u30eb\u304c\u6d88\u78c1\u3055\u308c\u305f\u3068\u304d\u306b\u767a\u751f\u3059\u308b\u904e\u6e21\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u3067\u3059\u3002 <a href=\"https:\/\/test.viox.com\/ja\/what-is-a-contactor\/\">\u63a5\u89e6\u5668<\/a> \u30b3\u30a4\u30eb\u304c\u6d88\u78c1\u3055\u308c\u308b\u3068\u304d\u3002.<\/p>\n<div id='gallery-1' class='gallery galleryid-22458 gallery-columns-3 gallery-size-full'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/test.viox.com\/ja\/?attachment_id=5526'><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-3211-AC-Contactor.webp\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-3211-AC-Contactor.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-3211-AC-Contactor-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-3211-AC-Contactor-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-3211-AC-Contactor-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-3211-AC-Contactor-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-3211-AC-Contactor-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/test.viox.com\/ja\/?attachment_id=5522'><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-0911-AC-Contactor.webp\" class=\"attachment-full size-full\" alt=\"VIOX CJX2-0911 AC Contactor\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-0911-AC-Contactor.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-0911-AC-Contactor-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-0911-AC-Contactor-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-0911-AC-Contactor-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-0911-AC-Contactor-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-0911-AC-Contactor-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/test.viox.com\/ja\/?attachment_id=5521'><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-4011-AC-Contactor.webp\" class=\"attachment-full size-full\" alt=\"VIOX CJX2-4011 AC Contactor\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-4011-AC-Contactor.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-4011-AC-Contactor-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-4011-AC-Contactor-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-4011-AC-Contactor-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-4011-AC-Contactor-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/09\/VIOX-CJX2-4011-AC-Contactor-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<h2>\u30b3\u30f3\u30bf\u30af\u30bf\u30b3\u30a4\u30eb\u304c\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u3092\u751f\u6210\u3059\u308b\u7406\u7531<\/h2>\n<p>\u30b3\u30a4\u30eb\u306f\u3001\u3059\u3079\u3066\u306e\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u96fb\u78c1\u30a8\u30f3\u30b8\u30f3\u3067\u3059\u3002\u52b1\u78c1\u3055\u308c\u308b\u3068\u3001\u9ad8\u3044\u7a81\u5165\u96fb\u6d41\u3092\u6d88\u8cbb\u3057\u3066\u30a2\u30fc\u30de\u30c1\u30e5\u30a2\u3092\u5f15\u304d\u8fbc\u307f\u307e\u3059\u3002\u6d88\u78c1\u3055\u308c\u308b\u3068\u3001\u6f5c\u5728\u7684\u306b\u7834\u58ca\u7684\u306a\u904e\u6e21\u96fb\u5727\u30b5\u30fc\u30b8\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u305d\u306e\u7406\u7531\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3001\u9069\u5207\u306a\u6291\u5236\u6226\u7565\u3092\u9078\u629e\u3059\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n<p>\u6839\u672c\u7684\u306a\u539f\u56e0\u306f <strong>\u81ea\u5df1\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9<\/strong>. \u3067\u3059\u3002\u6d88\u78c1\u306e\u77ac\u9593\u3001\u30b3\u30a4\u30eb\u96fb\u6d41\u306f\u6025\u901f\u306b\u30bc\u30ed\u306b\u5411\u304b\u3063\u3066\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u30ec\u30f3\u30c4\u306e\u6cd5\u5247\u306b\u3088\u308c\u3070\u3001\u5d29\u58ca\u3059\u308b\u78c1\u5834\u306f\u3001\u96fb\u6d41\u306e\u6d41\u308c\u3092\u7dad\u6301\u3057\u3088\u3046\u3068\u3057\u3066\u3001\u30b3\u30a4\u30eb\u7aef\u5b50\u9593\u306b\u9006\u8d77\u96fb\u529b\uff08\u9006EMF\uff09\u3092\u8a98\u5c0e\u3057\u307e\u3059\u3002\u96fb\u6d41\u5909\u5316\u7387\uff08di\/dt\uff09\u306f\u3001\u9ad8\u901f\u906e\u65ad\u4e2d\u306b\u975e\u5e38\u306b\u9ad8\u3044\u305f\u3081\u3001\u7d50\u679c\u3068\u3057\u3066\u751f\u3058\u308b\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u306f\u6570\u767e\u30dc\u30eb\u30c8\u3001\u3042\u308b\u3044\u306f\u6570\u5343\u30dc\u30eb\u30c8\u306b\u9054\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/AC-coil-de-energization--surge-voltage-waveform-yellow-trace.webp\" alt=\"AC coil de-energization surge voltage waveform showing high voltage spike on oscilloscope display\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">AC\u30b3\u30a4\u30eb\u6d88\u78c1\uff1a\u30b5\u30fc\u30b8\u96fb\u5727\u6ce2\u5f62\uff08\u9ec4\u8272\u306e\u30c8\u30ec\u30fc\u30b9\uff09<\/figcaption><\/figure>\n<p>\u3053\u308c\u3089\u306e\u904e\u6e21\u30b9\u30d1\u30a4\u30af\u306f\u30012\u3064\u306e\u7570\u306a\u308b\u30ea\u30b9\u30af\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u7b2c\u4e00\u306b\u3001 <strong>\u90e8\u54c1\u640d\u50b7<\/strong> \u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001 <a href=\"https:\/\/test.viox.com\/ja\/contactors-vs-relays-understanding-the-key-differences\/\">\u30ea\u30ec\u30fc\u63a5\u70b9<\/a>, \u63a5\u70b9\u306e\u52a0\u901f\u7684\u306a\u8150\u98df\u3001\u534a\u5c0e\u4f53\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30c7\u30d0\u30a4\u30b9\uff08\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3001SSR\uff09\u306e\u52a3\u5316\u3001\u30b3\u30a4\u30eb\u7d76\u7e01\u306e\u65e9\u671f\u7834\u58ca\u306a\u3069\u3067\u3059\u3002\u7b2c\u4e8c\u306b\u3001 <strong>\u96fb\u78c1\u5e72\u6e09\uff08EMI\uff09<\/strong> \u3092\u767a\u751f\u3055\u305b\u3001\u305d\u308c\u304c\u8fd1\u304f\u306e\u4fe1\u53f7\u914d\u7dda\u306b\u7d50\u5408\u3057\u3001PLC\u3001\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3001\u901a\u4fe1\u30d0\u30b9\u306a\u3069\u306e\u654f\u611f\u306a\u5236\u5fa1\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u3092\u59a8\u5bb3\u3057\u307e\u3059\u3002.<\/p>\n<p>\u3053\u308c\u3089\u306e\u5f71\u97ff\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\u30014\u7a2e\u985e\u306e\u30b5\u30fc\u30b8\u6291\u5236\u5668\u304c\u4e00\u822c\u7684\u306b\u30b3\u30f3\u30bf\u30af\u30bf\u30b3\u30a4\u30eb\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u304c\u3001\u6291\u5236\u52b9\u679c\u3001\u9069\u7528\u53ef\u80fd\u306a\u30b3\u30a4\u30eb\u30bf\u30a4\u30d7\u3001\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u89e3\u653e\u6642\u9593\u3078\u306e\u5f71\u97ff\u306e\u9593\u3067\u7570\u306a\u308b\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/The-four-common-coil-surge-suppressor-types.webp\" alt=\"Four types of surge suppressors for contactors: RC snubber, varistor MOV, freewheeling diode, and TVS diode circuit symbols\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u4e00\u822c\u7684\u306a4\u7a2e\u985e\u306e\u30b3\u30a4\u30eb\u30b5\u30fc\u30b8\u6291\u5236\u5668<\/figcaption><\/figure>\n<hr \/>\n<h2>1. RC\u30b9\u30ca\u30d0\u56de\u8def<\/h2>\n<p>\u306b\u3064\u3044\u3066 <a href=\"https:\/\/test.viox.com\/ja\/coil-suppression-techniques-diode-vs-zener-rc-snubber\/\">RC\u30b9\u30ca\u30d0<\/a> \uff08\u30b3\u30a4\u30eb\u3068\u4e26\u5217\u306b\u63a5\u7d9a\u3055\u308c\u305f\u76f4\u5217\u306e\u62b5\u6297\u3068\u30b3\u30f3\u30c7\u30f3\u30b5\uff09\u306f\u3001\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u6291\u5236\u65b9\u6cd5\u306e1\u3064\u3067\u3059\u3002.<\/p>\n<p><strong>\u52d5\u4f5c\u539f\u7406\u3002.<\/strong> \u30b3\u30a4\u30eb\u304c\u6d88\u78c1\u3055\u308c\u308b\u3068\u3001\u8a98\u5c0e\u3055\u308c\u305f\u9006\u8d77\u96fb\u529b\u306f\u30b9\u30ca\u30d0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u901a\u3057\u3066\u96fb\u6d41\u3092\u6d41\u3057\u307e\u3059\u3002\u30b3\u30f3\u30c7\u30f3\u30b5\u306f\u904e\u6e21\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5438\u53ce\u3057\u3001\u305d\u308c\u3092\u84c4\u7a4d\u3055\u308c\u305f\u96fb\u754c\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u5909\u63db\u3057\u3001\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u3092\u52b9\u679c\u7684\u306b\u7ba1\u7406\u53ef\u80fd\u306a\u30ec\u30d9\u30eb\u306b\u30af\u30e9\u30f3\u30d7\u3057\u307e\u3059\u3002\u84c4\u7a4d\u3055\u308c\u305f\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\u3001\u4e26\u5217\u62b5\u6297\u3092\u901a\u3057\u3066\u71b1\u3068\u3057\u3066\u6563\u9038\u3055\u308c\u307e\u3059\u3002\u540c\u69d8\u306b\u91cd\u8981\u306a\u306e\u306f\u3001\u62b5\u6297\u304c\u6e1b\u8870\u3092\u63d0\u4f9b\u3057\u3001\u30b3\u30f3\u30c7\u30f3\u30b5\u3068\u30b3\u30a4\u30eb\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u304c\u6e1b\u8870\u4e0d\u8db3\u306eLC\u632f\u52d5\u3092\u5f62\u6210\u3059\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u3067\u3059\u3002\u305d\u3046\u3057\u306a\u3044\u3068\u3001\u65b0\u3057\u3044\u4e00\u9023\u306e\u96fb\u5727\u30ea\u30f3\u30ae\u30f3\u30b0\u304c\u767a\u751f\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u4e3b\u306a\u7279\u5fb4:<\/strong><\/p>\n<ul>\n<li><strong>\u9069\u7528\u53ef\u80fd\u306a\u30b3\u30a4\u30eb\u30bf\u30a4\u30d7\uff1a<\/strong> AC\u304a\u3088\u3073DC<\/li>\n<li><strong>\u96fb\u5727\u30af\u30e9\u30f3\u30d7\u30ec\u30d9\u30eb\uff1a<\/strong> \u2264 3 \u00d7 Uc\uff08\u5b9a\u683c\u30b3\u30a4\u30eb\u96fb\u5727\uff09<\/li>\n<li><strong>\u89e3\u653e\u6642\u9593\u3078\u306e\u5f71\u97ff\uff1a<\/strong> \u4e2d\u7a0b\u5ea6 \u2014 \u901a\u5e38\u3001\u901a\u5e38\u306e\u89e3\u653e\u6642\u9593\u306e1.2\u500d\u304b\u30892\u500d<\/li>\n<li><strong>\u5236\u9650\u4e8b\u9805\uff1a<\/strong> \u9ad8\u8abf\u6ce2\u6210\u5206\u304c\u591a\u3044\u56de\u8def\u3067\u306f\u3001\u9ad8\u8abf\u6ce2\u304c\u30b3\u30f3\u30c7\u30f3\u30b5\u5185\u3067\u904e\u5ea6\u306e\u767a\u71b1\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<p>RC\u30b9\u30ca\u30d0\u306f\u3001\u8cbb\u7528\u5bfe\u52b9\u679c\u306e\u9ad8\u3044\u6c4e\u7528\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002\u4e3b\u306a\u6b20\u70b9\u306f\u3001\u30af\u30e9\u30f3\u30d7\u6bd4\uff083\u00d7 Uc\uff09\u304c4\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u4e2d\u3067\u6700\u3082\u9ad8\u304f\u3001\u4e00\u90e8\u306e\u6b8b\u7559\u30b9\u30d1\u30a4\u30af\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u4f9d\u7136\u3068\u3057\u3066\u5236\u5fa1\u56de\u8def\u306b\u5230\u9054\u3059\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n<hr \/>\n<h2>2. \u30d0\u30ea\u30b9\u30bf\uff08MOV\uff09<\/h2>\n<p>A <a href=\"https:\/\/test.viox.com\/ja\/mov-vs-gdt-vs-tvs-comparison\/\"><strong>\u91d1\u5c5e\u9178\u5316\u7269\u30d0\u30ea\u30b9\u30bf\uff08MOV\uff09<\/strong><\/a> \u306f\u3001\u305d\u306e\u9ad8\u5ea6\u306b\u975e\u7dda\u5f62\u306e\u96fb\u5727-\u96fb\u6d41\u7279\u6027\u3092\u901a\u3058\u3066\u30b3\u30a4\u30eb\u904e\u6e21\u73fe\u8c61\u3092\u6291\u5236\u3057\u307e\u3059\u3002\u30a8\u30cd\u30eb\u30ae\u30fc\u5438\u53ce\u578b\u306e\u632f\u52d5\u30c0\u30f3\u30d1\u30fc\u3067\u306f\u306a\u304f\u3001\u96fb\u5727\u4f9d\u5b58\u578b\u306e\u30af\u30e9\u30f3\u30d7\u30c7\u30d0\u30a4\u30b9\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u52d5\u4f5c\u539f\u7406\u3002.<\/strong> \u901a\u5e38\u306e\u30b3\u30a4\u30eb\u96fb\u5727\u3067\u306f\u3001\u30d0\u30ea\u30b9\u30bf\u306f\u975e\u5e38\u306b\u9ad8\u3044\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\uff08\u4e8b\u5b9f\u4e0a\u3001\u958b\u56de\u8def\uff09\u3092\u793a\u3057\u3001\u7121\u8996\u3067\u304d\u308b\u7a0b\u5ea6\u306e\u30ea\u30fc\u30af\u96fb\u6d41\u3057\u304b\u6d41\u3057\u307e\u305b\u3093\u3002\u30b3\u30a4\u30eb\u304c\u6d88\u78c1\u3055\u308c\u3001\u904e\u6e21\u96fb\u5727\u304c\u30d0\u30ea\u30b9\u30bf\u306e\u30af\u30e9\u30f3\u30d7\u96fb\u5727\uff08\u901a\u5e38\u3001\u5b9a\u683c\u30b3\u30a4\u30eb\u96fb\u5727\u306e1.6\u500d\u304b\u30892\u500d\uff09\u3092\u8d85\u3048\u308b\u3068\u3001\u9178\u5316\u4e9c\u925b\u306e\u7c92\u754c\u304c\u306a\u3060\u308c\u964d\u4f0f\u3092\u8d77\u3053\u3057\u307e\u3059\u3002\u30d0\u30ea\u30b9\u30bf\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u6570\u6841\u4f4e\u4e0b\u3057\u3001\u30b5\u30fc\u30b8\u96fb\u6d41\u3092\u5206\u6d41\u3057\u3001\u7aef\u5b50\u96fb\u5727\u3092\u5b89\u5168\u306a\u30ec\u30d9\u30eb\u306b\u30af\u30e9\u30f3\u30d7\u3057\u307e\u3059\u3002\u904e\u6e21\u73fe\u8c61\u304c\u53ce\u307e\u308b\u3068\u3001\u30d0\u30ea\u30b9\u30bf\u306f\u9ad8\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u72b6\u614b\u306b\u623b\u308a\u307e\u3059\u3002.<\/p>\n<p><strong>\u4e3b\u306a\u7279\u5fb4:<\/strong><\/p>\n<ul>\n<li><strong>\u9069\u7528\u53ef\u80fd\u306a\u30b3\u30a4\u30eb\u30bf\u30a4\u30d7\uff1a<\/strong> AC\u304a\u3088\u3073DC<\/li>\n<li><strong>\u96fb\u5727\u30af\u30e9\u30f3\u30d7\u30ec\u30d9\u30eb\uff1a<\/strong> \u2264 2 \u00d7 Uc<\/li>\n<li><strong>\u89e3\u653e\u6642\u9593\u3078\u306e\u5f71\u97ff\uff1a<\/strong> \u308f\u305a\u304b \u2014 \u901a\u5e38\u3001\u901a\u5e38\u306e\u89e3\u653e\u6642\u9593\u306e1.1\u500d\u304b\u30891.5\u500d<\/li>\n<li><strong>\u8003\u616e\u4e8b\u9805\uff1a<\/strong> \u30d0\u30ea\u30b9\u30bf\u306f\u3001\u7e70\u308a\u8fd4\u3057\u306e\u30b5\u30fc\u30b8\u5438\u53ce\u30a4\u30d9\u30f3\u30c8\u306b\u3088\u3063\u3066\u7d4c\u5e74\u52a3\u5316\u3057\u307e\u3059\u3002\u9ad8\u30b5\u30a4\u30af\u30eb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9a\u671f\u7684\u306a\u691c\u67fb\u307e\u305f\u306f\u4ea4\u63db\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u30d0\u30ea\u30b9\u30bf\u306f\u3001RC\u30b9\u30ca\u30d0\u3088\u308a\u3082\u512a\u308c\u305f\u30af\u30e9\u30f3\u30d7\uff082\u00d7 Uc \u5bfe 3\u00d7 Uc\uff09\u3068\u3001\u89e3\u653e\u6642\u9593\u3078\u306e\u5f71\u97ff\u304c\u5c11\u306a\u3044\u305f\u3081\u3001AC\u304a\u3088\u3073DC\u56de\u8def\u306e\u4e21\u65b9\u3067\u6c4e\u7528\u30b3\u30f3\u30bf\u30af\u30bf\u4fdd\u8b77\u306b\u6700\u9069\u3067\u3059\u3002.<\/p>\n<hr \/>\n<h2>3. \u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\uff08\u30d5\u30e9\u30a4\u30d0\u30c3\u30af\u30c0\u30a4\u30aa\u30fc\u30c9\uff09<\/h2>\n<p>\u306b\u3064\u3044\u3066 <a href=\"https:\/\/test.viox.com\/ja\/freewheeling-diode-vs-surge-arrester-guide\/\"><strong>\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9<\/strong><\/a> \uff08\u30d5\u30e9\u30a4\u30d0\u30c3\u30af\u30c0\u30a4\u30aa\u30fc\u30c9\u307e\u305f\u306f\u6291\u5236\u30c0\u30a4\u30aa\u30fc\u30c9\u3068\u3082\u547c\u3070\u308c\u307e\u3059\uff09\u306f\u3001\u3042\u3089\u3086\u308b\u30d1\u30c3\u30b7\u30d6\u65b9\u5f0f\u306e\u4e2d\u3067\u6700\u3082\u52b9\u679c\u7684\u306a\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u6291\u5236\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30b3\u30a4\u30eb\u306b\u84c4\u7a4d\u3055\u308c\u305f\u78c1\u6c17\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u96fb\u6d41\u7d4c\u8def\u3092\u4e0e\u3048\u308b\u3053\u3068\u3067\u3001\u305d\u306e\u767a\u751f\u6e90\u3067\u9ad8\u96fb\u5727\u904e\u6e21\u73fe\u8c61\u3092\u6392\u9664\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u52d5\u4f5c\u539f\u7406\u3002.<\/strong> \u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001DC\u30b3\u30a4\u30eb\u7aef\u5b50\u9593\u306b\u9006\u30d0\u30a4\u30a2\u30b9\u3067\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u901a\u5e38\u306e\u52d5\u4f5c\u4e2d\u3001\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u9006\u30d0\u30a4\u30a2\u30b9\u3055\u308c\u3066\u304a\u308a\u3001\u96fb\u6d41\u306f\u6d41\u308c\u307e\u305b\u3093\u3002\u6d88\u78c1\u306e\u77ac\u9593\u3001\u5d29\u58ca\u3059\u308b\u78c1\u5834\u306f\u30b3\u30a4\u30eb\u9593\u306e\u6975\u6027\u3092\u53cd\u8ee2\u3055\u305b\u3001\u30c0\u30a4\u30aa\u30fc\u30c9\u3092\u9806\u30d0\u30a4\u30a2\u30b9\u306b\u3057\u307e\u3059\u3002\u30b3\u30a4\u30eb\u96fb\u6d41\u306f\u3001\u30b3\u30a4\u30eb\u81ea\u8eab\u306eDC\u62b5\u6297\u3067\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u6563\u9038\u3059\u308b\u306b\u3064\u308c\u3066\u5f90\u3005\u306b\u6e1b\u8870\u3057\u306a\u304c\u3089\u3001\u9589\u30eb\u30fc\u30d7\u3067\u30c0\u30a4\u30aa\u30fc\u30c9\u3092\u6d41\u308c\u7d9a\u3051\u307e\u3059\u3002\u96fb\u6d41\u7d4c\u8def\u304c\u6025\u306b\u958b\u304f\u3053\u3068\u304c\u306a\u3044\u305f\u3081\u3001\u9ad8\u3044di\/dt\u30a4\u30d9\u30f3\u30c8\u306f\u767a\u751f\u305b\u305a\u3001\u3057\u305f\u304c\u3063\u3066\u3001\u6709\u610f\u306a\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u3002.<\/p>\n<p><strong>\u4e3b\u306a\u7279\u5fb4:<\/strong><\/p>\n<ul>\n<li><strong>\u9069\u7528\u53ef\u80fd\u306a\u30b3\u30a4\u30eb\u30bf\u30a4\u30d7\uff1a<\/strong> DC\u306e\u307f\uff08\u30c0\u30a4\u30aa\u30fc\u30c9\u306e\u4e00\u65b9\u5411\u4f1d\u5c0e\u306fAC\u30b3\u30a4\u30eb\u3068\u4e92\u63db\u6027\u304c\u3042\u308a\u307e\u305b\u3093\uff09<\/li>\n<li><strong>\u96fb\u5727\u30af\u30e9\u30f3\u30d7\u30ec\u30d9\u30eb\uff1a<\/strong> \u2248 0 V \u2014 \u9006\u8d77\u96fb\u529b\u306f\u672c\u8cea\u7684\u306b\u6392\u9664\u3055\u308c\u307e\u3059<\/li>\n<li><strong>\u89e3\u653e\u6642\u9593\u3078\u306e\u5f71\u97ff\uff1a<\/strong> \u6df1\u523b \u2014 \u901a\u5e38\u3001\u901a\u5e38\u306e\u89e3\u653e\u6642\u9593\u306e6\u500d\u304b\u308910\u500d<\/li>\n<li><strong>\u91cd\u8981\u306a\u5236\u9650\uff1a<\/strong> \u89e3\u653e\u6642\u9593\u304c\u9577\u304f\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u5236\u5fa1\u4fe1\u53f7\u304c\u9664\u53bb\u3055\u308c\u305f\u5f8c\u3082\u3001\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u4e3b\u63a5\u70b9\u304c\u306f\u308b\u304b\u306b\u9577\u304f\u9589\u3058\u305f\u307e\u307e\u306b\u306a\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u9ad8\u901f\u6d88\u78c1\u304c\u5fc5\u8981\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08\u4f8b\uff1a\u7dca\u6025\u505c\u6b62\u56de\u8def\u3001\u53cd\u8ee2\u30b3\u30f3\u30bf\u30af\u30bf\uff09\u3067\u306f\u8a31\u5bb9\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u306e\u30aa\u30b7\u30ed\u30b9\u30b3\u30fc\u30d7\u306e\u30ad\u30e3\u30d7\u30c1\u30e3\u306f\u3001\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3092\u660e\u78ba\u306b\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u56f310\u306f\u3001\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u306e\u306a\u3044DC\u30b3\u30f3\u30bf\u30af\u30bf\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u7dd1\u8272\u306e\u30c8\u30ec\u30fc\u30b9\uff08\u30b3\u30a4\u30eb\u96fb\u5727\uff09\u306f\u5927\u304d\u306a\u904e\u6e21\u30b9\u30d1\u30a4\u30af\u3092\u793a\u3057\u3001\u89e3\u653e\u6642\u9593\u306f13.5 ms\u3067\u3059\u3002\u56f311\u306f\u3001\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u304c\u53d6\u308a\u4ed8\u3051\u3089\u308c\u305f\u540c\u3058\u30b3\u30f3\u30bf\u30af\u30bf\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u9006\u8d77\u96fb\u529b\u306f0 V\u306b\u30af\u30e9\u30f3\u30d7\u3055\u308c\u307e\u3059\u304c\u3001\u89e3\u653e\u6642\u9593\u306f97.2 ms\u306b\u5ef6\u9577\u3055\u308c\u307e\u3059\uff08\u7d047\u500d\u9577\u304f\u306a\u308a\u307e\u3059\uff09\u3002.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/DC-contactor-release-waveform-without-freewheeling-diode-green--coil-voltage-blue--main-contact-voltage-Release-time--135-ms.webp\" alt=\"DC contactor release waveform without freewheeling diode (green: coil voltage; blue: main contact voltage)\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u306e\u306a\u3044DC\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u89e3\u653e\u6ce2\u5f62\u3002\u89e3\u653e\u6642\u9593\uff1a13.5 ms\u3002.<\/figcaption><\/figure>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/DC-contactor-release-waveform-with-freewheeling-diode-green--coil-voltage-blue--main-contact-voltage-Release-time--972-ms.webp\" alt=\"DC contactor release waveform with freewheeling diode (green: coil voltage; blue: main contact voltage)\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u306e\u3042\u308bDC\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u89e3\u653e\u6ce2\u5f62\u3002\u89e3\u653e\u6642\u9593\uff1a97.2 ms\u3002.<\/figcaption><\/figure>\n<p>\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u6700\u5927\u30b9\u30d1\u30a4\u30af\u6291\u5236\u304c\u512a\u5148\u3055\u308c\u3001\u89e3\u653e\u6642\u9593\u306e\u5ef6\u9577\u304c\u8a31\u5bb9\u3055\u308c\u308b\u5834\u5408\u306b\u6700\u9069\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001EMI\u611f\u5ea6\u304c\u9ad8\u3044\u975e\u5b89\u5168\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306aDC\u5236\u5fa1\u56de\u8def\u306a\u3069\u3067\u3059\u3002.<\/p>\n<hr \/>\n<h2>4. \u53cc\u65b9\u5411TVS\u30c0\u30a4\u30aa\u30fc\u30c9<\/h2>\n<p>A <a href=\"https:\/\/test.viox.com\/ja\/mov-vs-gdt-vs-tvs-comparison\/\"><strong>\u53cc\u65b9\u5411\u904e\u6e21\u96fb\u5727\u30b5\u30d7\u30ec\u30c3\u30b5\uff08TVS\uff09\u30c0\u30a4\u30aa\u30fc\u30c9<\/strong><\/a> \u306f\u3001\u6b63\u78ba\u306a\u96fb\u5727\u30af\u30e9\u30f3\u30d7\u3068\u89e3\u653e\u6642\u9593\u3078\u306e\u6700\u5c0f\u9650\u306e\u5f71\u97ff\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u308b\u305f\u3081\u3001\u304a\u305d\u3089\u304f\u5229\u7528\u53ef\u80fd\u306a\u6700\u3082\u30d0\u30e9\u30f3\u30b9\u306e\u53d6\u308c\u305f\u6291\u5236\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002.<\/p>\n<p><strong>\u52d5\u4f5c\u539f\u7406\u3002.<\/strong> \u53cc\u65b9\u5411TVS\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u30b3\u30a4\u30eb\u7aef\u5b50\u9593\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u901a\u5e38\u306e\u52d5\u4f5c\u96fb\u5727\u3067\u306f\u3001\u9ad8\u3044\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u793a\u3057\u3001\u56de\u8def\u52d5\u4f5c\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u305b\u3093\u3002\u30b3\u30a4\u30eb\u304c\u6d88\u78c1\u3055\u308c\u3001\u904e\u6e21\u96fb\u5727\uff08\u3069\u3061\u3089\u306e\u6975\u6027\u3067\u3082\uff09\u304cTVS\u306e\u964d\u4f0f\u96fb\u5727\u3092\u8d85\u3048\u308b\u3068\u3001\u30c7\u30d0\u30a4\u30b9\u306f\u30ca\u30ce\u79d2\u4ee5\u5185\u306b\u30a2\u30d0\u30e9\u30f3\u30b7\u30a7\u964d\u4f0f\u306b\u5165\u308a\u307e\u3059\u3002\u9ad8\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304b\u3089\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306b\u79fb\u884c\u3057\u3001\u30b5\u30fc\u30b8\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5438\u53ce\u3057\u3001\u305d\u306ePN\u63a5\u5408\u7279\u6027\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u308b\u4e88\u6e2c\u53ef\u80fd\u3067\u5b89\u5168\u306a\u30ec\u30d9\u30eb\u306b\u7aef\u5b50\u96fb\u5727\u3092\u30af\u30e9\u30f3\u30d7\u3057\u307e\u3059\u3002\u904e\u6e21\u73fe\u8c61\u304c\u904e\u304e\u308b\u3068\u3001TVS\u306f\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u72b6\u614b\u306b\u623b\u308a\u307e\u3059\u3002.<\/p>\n<p><strong>\u4e3b\u306a\u7279\u5fb4:<\/strong><\/p>\n<ul>\n<li><strong>\u9069\u7528\u53ef\u80fd\u306a\u30b3\u30a4\u30eb\u30bf\u30a4\u30d7\uff1a<\/strong> AC\u304a\u3088\u3073DC<\/li>\n<li><strong>\u96fb\u5727\u30af\u30e9\u30f3\u30d7\u30ec\u30d9\u30eb\uff1a<\/strong> \u2264 2 \u00d7 Uc<\/li>\n<li><strong>\u89e3\u653e\u6642\u9593\u3078\u306e\u5f71\u97ff\uff1a<\/strong> \u7121\u8996\u53ef\u80fd \u2014 \u89e3\u653e\u30bf\u30a4\u30df\u30f3\u30b0\u306f\u672c\u8cea\u7684\u306b\u5909\u5316\u3057\u307e\u305b\u3093<\/li>\n<li><strong>\u30a2\u30c9\u30d0\u30f3\u30c6\u30fc\u30b8\uff1a<\/strong> \u9ad8\u901f\u5fdc\u7b54\u6642\u9593\uff08\u30b5\u30d6\u30ca\u30ce\u79d2\uff09\u3068\u6b63\u78ba\u306a\u30af\u30e9\u30f3\u30d7\u96fb\u5727\u306b\u3088\u308a\u3001TVS\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u654f\u611f\u306a\u4e0b\u6d41\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u3092\u4fdd\u8b77\u3059\u308b\u4e0a\u3067\u7279\u306b\u52b9\u679c\u7684\u3067\u3059\u3002<\/li>\n<\/ul>\n<p><strong>\u91cd\u8981\u306a\u30b5\u30a4\u30b8\u30f3\u30b0\u306e\u8003\u616e\u4e8b\u9805\uff1a<\/strong> \u30d0\u30ea\u30b9\u30bf\u3084RC\u30b9\u30ca\u30d0\u3068\u306f\u7570\u306a\u308a\u3001TVS\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u6bd4\u8f03\u7684\u9650\u3089\u308c\u305f\u30b5\u30fc\u30b8\u96fb\u6d41\u80fd\u529b\uff08I_{TSM}\uff09\u3068\u30d4\u30fc\u30af\u30d1\u30eb\u30b9\u96fb\u529b\u5b9a\u683c\uff08P_{PP}\uff09\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u6d88\u78c1\u306e\u77ac\u9593\u306b\u30b3\u30f3\u30bf\u30af\u30bf\u30b3\u30a4\u30eb\u306b\u84c4\u7a4d\u3055\u308c\u305f\u30a8\u30cd\u30eb\u30ae\u30fc\u306fE = \\frac{1}{2}LI^2\u3067\u3042\u308a\u3001\u30b3\u30a4\u30eb\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u304c\u9ad8\u3044\u5927\u578b\u30b3\u30f3\u30bf\u30af\u30bf\uff08\u901a\u5e38\u3001&gt;100 A\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\uff09\u306e\u5834\u5408\u3001\u3053\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\u6a19\u6e96\u7684\u306aTVS\u30c7\u30d0\u30a4\u30b9\u306e\u30b7\u30f3\u30b0\u30eb\u30d1\u30eb\u30b9\u5438\u53ce\u5b9a\u683c\u3092\u7c21\u5358\u306b\u8d85\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u58ca\u6ec5\u7684\u306a\u63a5\u5408\u90e8\u6545\u969c\u304c\u767a\u751f\u3057\u307e\u3059\u3002TVS\u30c0\u30a4\u30aa\u30fc\u30c9\u3092\u6307\u5b9a\u3059\u308b\u524d\u306b\u3001\u5fc5\u305a\u30b3\u30a4\u30eb\u306e\u84c4\u7a4d\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u8a08\u7b97\u3057\u3001\u9078\u629e\u3057\u305f\u30c7\u30d0\u30a4\u30b9\u306eP_{PP}\u5b9a\u683c\u304c\u5341\u5206\u306a\u30de\u30fc\u30b8\u30f3\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u822c\u7684\u306a\u7d4c\u9a13\u5247\u3068\u3057\u3066\u3001\u30d4\u30fc\u30af\u30d1\u30eb\u30b9\u96fb\u529b\u5b9a\u683c\u304c\u8a08\u7b97\u3055\u308c\u305f\u30b3\u30a4\u30eb\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u5c11\u306a\u304f\u3068\u30822\u500d\u304b\u30893\u500d\u306eTVS\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6700\u3082\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u73fe\u5834\u6545\u969c\u30e2\u30fc\u30c9\u306e1\u3064\u3067\u3059\u3002TVS\u306f\u8a66\u904b\u8ee2\u4e2d\u306f\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u7e70\u308a\u8fd4\u3057\u306e\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30b5\u30a4\u30af\u30eb\u5f8c\u306b\u9759\u304b\u306b\u6545\u969c\u3057\u3001\u56de\u8def\u306f\u4fdd\u8b77\u3055\u308c\u307e\u305b\u3093\u3002.<\/p>\n<p>\u53cc\u65b9\u5411TVS\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u52b9\u679c\u7684\u306a\u30af\u30e9\u30f3\u30d7\u3068\u640d\u306a\u308f\u308c\u306a\u3044\u89e3\u653e\u6642\u9593\u306e\u4e21\u65b9\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u6700\u9069\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u5b89\u5168\u3068\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u5236\u7d04\u304c\u53b3\u3057\u3044\u6700\u65b0\u306e\u81ea\u52d5\u5316\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u4e00\u822c\u7684\u306a\u8981\u4ef6\u3067\u3059\u3002.<\/p>\n<hr \/>\n<h2>\u6bd4\u8f03\u3068\u9078\u629e\u30ac\u30a4\u30c9<\/h2>\n<p>\u4ee5\u4e0b\u306e\u8868\u306f\u3001\u4e3b\u8981\u306a\u9078\u629e\u57fa\u6e96\u306b\u308f\u305f\u308b4\u3064\u306e\u6291\u5236\u5668\u30bf\u30a4\u30d7\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n<th style=\"padding: 8px;\">RC\u30b9\u30ca\u30d0<\/th>\n<th style=\"padding: 8px;\">\u30d0\u30ea\u30b9\u30bf\uff08MOV\uff09<\/th>\n<th style=\"padding: 8px;\">\u30d5\u30e9\u30a4\u30db\u30a4\u30fc\u30eb\u30c0\u30a4\u30aa\u30fc\u30c9<\/th>\n<th style=\"padding: 8px;\">\u53cc\u65b9\u5411TVS\u30c0\u30a4\u30aa\u30fc\u30c9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u6291\u5236\u30e1\u30ab\u30cb\u30ba\u30e0<\/strong><\/td>\n<td style=\"padding: 8px;\">\u5bb9\u91cf\u6027\u30a8\u30cd\u30eb\u30ae\u30fc\u5438\u53ce + \u62b5\u6297\u6027\u6563\u9038<\/td>\n<td style=\"padding: 8px;\">\u975e\u7dda\u5f62ZnO\u7c92\u754c\u4f1d\u5c0e<\/td>\n<td style=\"padding: 8px;\">\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9DC\u96fb\u6d41\u518d\u5faa\u74b0<\/td>\n<td style=\"padding: 8px;\">PN\u63a5\u5408\u30a2\u30d0\u30e9\u30f3\u30b7\u30a7\u964d\u4f0f\u30af\u30e9\u30f3\u30d7<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>AC\u30b3\u30a4\u30eb\u5bfe\u5fdc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u2705 \u306f\u3044<\/td>\n<td style=\"padding: 8px;\">\u2705 \u306f\u3044<\/td>\n<td style=\"padding: 8px;\">\u274c \u3044\u3044\u3048<\/td>\n<td style=\"padding: 8px;\">\u2705 \u306f\u3044<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>DC\u30b3\u30a4\u30eb\u5bfe\u5fdc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u2705 \u306f\u3044<\/td>\n<td style=\"padding: 8px;\">\u2705 \u306f\u3044<\/td>\n<td style=\"padding: 8px;\">\u2705 \u306f\u3044<\/td>\n<td style=\"padding: 8px;\">\u2705 \u306f\u3044<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u96fb\u5727\u30af\u30e9\u30f3\u30d7\u30ec\u30d9\u30eb<\/strong><\/td>\n<td style=\"padding: 8px;\">\u2264 3 \u00d7 Uc<\/td>\n<td style=\"padding: 8px;\">\u2264 2 \u00d7 Uc<\/td>\n<td style=\"padding: 8px;\">\u2248 0 V<\/td>\n<td style=\"padding: 8px;\">\u2264 2 \u00d7 Uc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u30ea\u30ea\u30fc\u30b9\u6642\u9593\u3078\u306e\u5f71\u97ff<\/strong><\/td>\n<td style=\"padding: 8px;\">1.2\u00d7 \u2013 2\u00d7<\/td>\n<td style=\"padding: 8px;\">1.1\u00d7 \u2013 1.5\u00d7<\/td>\n<td style=\"padding: 8px;\">6\u00d7 \u2013 10\u00d7<\/td>\n<td style=\"padding: 8px;\">\u2248 1\u00d7 (\u7121\u8996\u3067\u304d\u308b)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u5fdc\u7b54\u901f\u5ea6<\/strong><\/td>\n<td style=\"padding: 8px;\">\u4e2d\u7a0b\u5ea6<\/td>\n<td style=\"padding: 8px;\">\u901f\u3044<\/td>\n<td style=\"padding: 8px;\">N\/A (\u9023\u7d9a\u30d1\u30b9)<\/td>\n<td style=\"padding: 8px;\">\u975e\u5e38\u306b\u9ad8\u901f (&lt; 1 ns)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u5927\u307e\u304b\u306a\u4f8b<\/strong><\/td>\n<td style=\"padding: 8px;\">\u6c4e\u7528\u3001\u30b3\u30b9\u30c8\u91cd\u8996<\/td>\n<td style=\"padding: 8px;\">\u6c4e\u7528AC\/DC<\/td>\n<td style=\"padding: 8px;\">\u4f4e\u901f\u30ea\u30ea\u30fc\u30b9\u3092\u8a31\u5bb9\u3059\u308bDC\u56de\u8def<\/td>\n<td style=\"padding: 8px;\">\u9ad8\u6027\u80fd\u3001\u30bf\u30a4\u30df\u30f3\u30b0\u304c\u91cd\u8981\u306a\u30b7\u30b9\u30c6\u30e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u5b9f\u7528\u7684\u306a\u9078\u629e\u306b\u95a2\u3059\u308b\u63a8\u5968\u4e8b\u9805<\/h3>\n<p><strong>AC\u30b3\u30a4\u30eb\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u5834\u5408<\/strong>, \u3001\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u9069\u7528\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u9078\u629e\u80a2\u306f3\u3064\u306b\u7d5e\u3089\u308c\u307e\u3059\u3002\u5b89\u5168\u30a4\u30f3\u30bf\u30fc\u30ed\u30c3\u30af\u3084\u9ad8\u901f\u30b5\u30a4\u30af\u30eb\u6a5f\u68b0\u306a\u3069\u3001\u30ea\u30ea\u30fc\u30b9\u6642\u9593\u304c\u91cd\u8981\u306a\u5834\u5408\u306f\u3001 <strong>\u53cc\u65b9\u5411TVS\u30c0\u30a4\u30aa\u30fc\u30c9<\/strong> \u304c\u6700\u3082\u6709\u529b\u306a\u5019\u88dc\u3067\u3059\u3002\u30b3\u30b9\u30c8\u304c\u6700\u512a\u5148\u3067\u3001\u9069\u5ea6\u306a\u30af\u30e9\u30f3\u30d7\u304c\u8a31\u5bb9\u3067\u304d\u308b\u5834\u5408\u306f\u3001 <strong>RC\u30b9\u30ca\u30d0<\/strong> \u304c\u5b9f\u7e3e\u306e\u3042\u308b\u7d4c\u6e08\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002 <strong>\u30d0\u30ea\u30b9\u30bf<\/strong> \u306f\u3001RC\u30b9\u30ca\u30d0\u3088\u308a\u3082\u512a\u308c\u305f\u30af\u30e9\u30f3\u30d7\u6027\u80fd\u3092\u6301\u3061\u3001\u30ea\u30ea\u30fc\u30b9\u6642\u9593\u306e\u30da\u30ca\u30eb\u30c6\u30a3\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u4e21\u8005\u306e\u4e2d\u9593\u306b\u4f4d\u7f6e\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>DC\u30b3\u30a4\u30eb\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u5834\u5408<\/strong>, \u30014\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3059\u3079\u3066\u304c\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002 <strong>\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9<\/strong> \u306f\u3001\u6bd4\u985e\u306e\u306a\u3044\u6291\u5236\uff080 V\u306e\u9006\u8d77\u96fb\u529b\uff09\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u30ea\u30ea\u30fc\u30b9\u6642\u9593\u304c6\u500d\u304b\u308910\u500d\u306b\u5897\u52a0\u3057\u3066\u3082\u8a31\u5bb9\u3067\u304d\u308b\u5834\u5408\u306b\u306e\u307f\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30bf\u30a4\u30df\u30f3\u30b0\u306b\u654f\u611f\u306aDC\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u7279\u306bPLC\u5165\u529b\u306b\u4f9b\u7d66\u3057\u305f\u308a\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u30d0\u30b9\u30b7\u30b9\u30c6\u30e0\u3068\u901a\u4fe1\u3057\u305f\u308a\u3059\u308b\u5834\u5408\u306f\u3001 <strong>\u53cc\u65b9\u5411TVS\u30c0\u30a4\u30aa\u30fc\u30c9<\/strong> \u304c\u6291\u5236\u6027\u80fd\u3068\u52d5\u7684\u5fdc\u7b54\u306e\u6700\u9069\u306a\u30d0\u30e9\u30f3\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<p>\u5b9f\u969b\u306b\u306f\u3001\u591a\u304f\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u591a\u5c64\u9632\u5fa1\u306e\u305f\u3081\u306b\u30b5\u30d7\u30ec\u30c3\u30b5\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u69cb\u6210\u3067\u306f\u3001 <strong>\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u3068\u76f4\u5217\u30c4\u30a7\u30ca\u30fc\u30c0\u30a4\u30aa\u30fc\u30c9<\/strong> \uff08\u307e\u305f\u306fTVS\u30c0\u30a4\u30aa\u30fc\u30c9\uff09\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u9006\u8d77\u96fb\u529b\u3092\u5236\u9650\u3057\u306a\u304c\u3089\u3001\u30ea\u30ea\u30fc\u30b9\u6642\u9593\u306e\u5897\u52a0\u3092\u6291\u5236\u3057\u307e\u3059\u304c\u3001\u3053\u308c\u306f <a href=\"https:\/\/test.viox.com\/ja\/coil-suppression-techniques-diode-vs-zener-rc-snubber\/\">\u9ad8\u5ea6\u306a\u6291\u5236\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u95a2\u3059\u308b\u3088\u308a\u6df1\u3044\u8b70\u8ad6<\/a>.<\/p>\n<p>\u306e\u305f\u3081\u306e\u30c8\u30d4\u30c3\u30af\u3067\u3059\u3002\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u9078\u629e\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306b\u95a2\u3059\u308b\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u5f53\u793e\u306e\u30ac\u30a4\u30c9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/test.viox.com\/ja\/industrial-contactor-maintenance-inspection-checklist\/\">\u5de5\u696d\u7528\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/test.viox.com\/ja\/contactor-troubleshooting-guide-buzzing-coil-failure\/\">\u63a5\u89e6\u5668\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a>.<\/p>\n<hr \/>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/h2>\n<h3>\u30b3\u30f3\u30bf\u30af\u30bf\u30b3\u30a4\u30eb\u304c\u30aa\u30d5\u306b\u306a\u308b\u969b\u306b\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u304c\u767a\u751f\u3059\u308b\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u3059\u3079\u3066\u306e\u30b3\u30f3\u30bf\u30af\u30bf\u30b3\u30a4\u30eb\u306f\u30a4\u30f3\u30c0\u30af\u30bf\u3067\u3059\u3002\u5236\u5fa1\u56de\u8def\u304c\u30b3\u30a4\u30eb\u96fb\u6d41\u3092\u906e\u65ad\u3059\u308b\u3068\u3001\u5d29\u58ca\u3059\u308b\u78c1\u5834\u304c\u30ec\u30f3\u30c4\u306e\u6cd5\u5247\u306b\u5f93\u3063\u3066\u9006\u8d77\u96fb\u529b\uff08\u9006EMF\uff09\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u96fb\u6d41\u304c\u975e\u5e38\u306b\u6025\u901f\u306b\u30bc\u30ed\u306b\u306a\u308b\u305f\u3081\u3001\u7d50\u679c\u3068\u3057\u3066\u751f\u3058\u308b$di\/dt$\u306f\u975e\u5e38\u306b\u9ad8\u304f\u3001\u30b3\u30a4\u30eb\u306e\u5b9a\u683c\u96fb\u5727\u3092\u306f\u308b\u304b\u306b\u8d85\u3048\u308b\u6570\u767e\u307e\u305f\u306f\u6570\u5343\u30dc\u30eb\u30c8\u306b\u9054\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u904e\u6e21\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u304c\u767a\u751f\u3057\u307e\u3059\u3002.<\/p>\n<h3>\u30b3\u30f3\u30bf\u30af\u30bf\u4fdd\u8b77\u306b\u304a\u3051\u308bRC\u30b9\u30ca\u30d0\u3068\u30d0\u30ea\u30b9\u30bf\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>RC\u30b9\u30ca\u30d0\u306f\u3001\u30b3\u30f3\u30c7\u30f3\u30b5\u5185\u306e\u904e\u6e21\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5438\u53ce\u3057\u3001\u62b5\u6297\u3092\u901a\u3057\u3066\u305d\u308c\u3092\u6563\u9038\u3055\u305b\u3001\u30b9\u30d1\u30a4\u30af\u3092\u5b9a\u683c\u30b3\u30a4\u30eb\u96fb\u5727\u306e\u7d043\u500d\u306b\u30af\u30e9\u30f3\u30d7\u3057\u307e\u3059\u3002\u30d0\u30ea\u30b9\u30bf\uff08MOV\uff09\u306f\u3001\u305d\u306e\u975e\u7dda\u5f62\u62b5\u6297\u3092\u5229\u7528\u3057\u3066\u3001\u96fb\u5727\u3092\u3088\u308a\u53b3\u5bc6\u306b\uff08\u901a\u5e38\u3001\u5b9a\u683c\u30b3\u30a4\u30eb\u96fb\u5727\u306e\u7d042\u500d\u306b\uff09\u30af\u30e9\u30f3\u30d7\u3057\u3001\u958b\u653e\u6642\u9593\u3078\u306e\u5f71\u97ff\u3092\u5c11\u306a\u304f\u3057\u307e\u3059\u3002\u30d0\u30ea\u30b9\u30bf\u306f\u512a\u308c\u305f\u6291\u5236\u6027\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001RC\u30b9\u30ca\u30d0\u306f\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u5b89\u4fa1\u3067\u3059\u3002.<\/p>\n<h3>\u9084\u6d41\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u306a\u305c\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u89e3\u653e\u6642\u9593\u3092\u9577\u304f\u3059\u308b\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u9084\u6d41\uff08\u30d5\u30e9\u30a4\u30d0\u30c3\u30af\uff09\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u52b1\u78c1\u89e3\u9664\u5f8c\u306b\u30b3\u30a4\u30eb\u96fb\u6d41\u304c\u5faa\u74b0\u3059\u308b\u305f\u3081\u306e\u307b\u307c\u30bc\u30ed\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u30d1\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u306f\u5b8c\u5168\u306b\u6392\u9664\u3055\u308c\u307e\u3059\u304c\u3001\u30b3\u30a4\u30eb\u96fb\u6d41\u306f\u6025\u6fc0\u306b\u4f4e\u4e0b\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u30c0\u30a4\u30aa\u30fc\u30c9\u3068\u30b3\u30a4\u30eb\u306eDC\u62b5\u6297\u3092\u4ecb\u3057\u3066\u975e\u5e38\u306b\u3086\u3063\u304f\u308a\u3068\u6e1b\u8870\u3057\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30a2\u30fc\u30de\u30c1\u30e5\u30a2\u3092\u4fdd\u6301\u3059\u308b\u78c1\u529b\u304c\u306f\u308b\u304b\u306b\u9577\u304f\u6301\u7d9a\u3057\u3001\u30b3\u30f3\u30bf\u30af\u30bf\u306e\u30ea\u30ea\u30fc\u30b9\u6642\u9593\u304c6\u500d\u304b\u308910\u500d\u306b\u5897\u52a0\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u7dca\u6025\u505c\u6b62\u56de\u8def\u306a\u3069\u3001\u9ad8\u901f\u306a\u6d88\u78c1\u304c\u5fc5\u8981\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u91cd\u8981\u306a\u61f8\u5ff5\u4e8b\u9805\u3067\u3059\u3002.<\/p>\n<h3>AC\u304a\u3088\u3073DC\u30b3\u30f3\u30bf\u30af\u30bf\u306b\u540c\u3058\u30b5\u30fc\u30b8\u6291\u5236\u5668\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u30b5\u30d7\u30ec\u30c3\u30b5\u306e\u7a2e\u985e\u306b\u3088\u308a\u307e\u3059\u3002RC\u30b9\u30ca\u30d0\u3001\u30d0\u30ea\u30b9\u30bf\uff08MOV\uff09\u3001\u53cc\u65b9\u5411TVS\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001AC\u30b3\u30a4\u30eb\u3068DC\u30b3\u30a4\u30eb\u306e\u4e21\u65b9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30d5\u30e9\u30a4\u30db\u30a4\u30fc\u30eb\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u4e00\u65b9\u5411\u5c0e\u96fb\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u3001DC\u30b3\u30a4\u30eb\u3067\u306e\u307f\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002AC\u30b3\u30a4\u30eb\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3001\u3059\u3079\u3066\u306e\u8ca0\u306e\u534a\u30b5\u30a4\u30af\u30eb\u304c\u77ed\u7d61\u3057\u3001\u30c0\u30a4\u30aa\u30fc\u30c9\u3068\u56de\u8def\u304c\u640d\u50b7\u3057\u307e\u3059\u3002.<\/p>\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class=\"simg-pop-btn\" style=\"top: 145px; left: 610.25px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 145px; left: 610.25px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 749.953px; left: 14px; display: flex;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 145px; left: 312.625px; display: none;\" data-hover=\"0\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Low-voltage contactors are the workhorses of motor control. Their ability to switch loads rapidly and reliably \u2014 with electrical endurance ratings exceeding one million operations \u2014 makes them indispensable across industrial automation, HVAC systems, and power distribution. But every switching event has a hidden cost: the transient voltage spike generated when the contactor coil de-energizes. Why Contactor Coils Generate Voltage Spikes The coil is the electromagnetic engine of every contactor. When energized, it draws a high inrush current to pull in the armature. When de-energized, it produces a potentially destructive transient voltage surge \u2014 and understanding why is the key to selecting the right suppression strategy. The root cause is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22460,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-22458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/22458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/comments?post=22458"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/22458\/revisions"}],"predecessor-version":[{"id":22461,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/22458\/revisions\/22461"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media\/22460"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media?parent=22458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/categories?post=22458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/tags?post=22458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}