{"id":18343,"date":"2025-07-12T13:52:58","date_gmt":"2025-07-12T05:52:58","guid":{"rendered":"https:\/\/viox.com\/?p=18343"},"modified":"2026-03-17T23:21:20","modified_gmt":"2026-03-17T15:21:20","slug":"what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/","title":{"rendered":"S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa MCB, MCCB, RCB, RCD, RCCB v\u00e0 RCBO: H\u01b0\u1edbng d\u1eabn 2026"},"content":{"rendered":"<div class=\"product-intro\">\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Comparison-photo-of-MCB-MCCB-RCD-RCCB-and-RCBO-electrical-protection-devices.webp\" alt=\"Comparison photo of MCB, MCCB, RCD, RCCB, and RCBO electrical protection devices\" \/><figcaption><em>\u1ea2nh so s\u00e1nh c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n MCB, MCCB, RCD, RCCB v\u00e0 RCBO.<\/em><\/figcaption><\/figure>\n<p>N\u1ebfu b\u1ea1n \u0111ang c\u1ed1 g\u1eafng hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa <code>MCB<\/code>, <code>MCCB<\/code>, <code>RCB<\/code>, <code>TI\u00caN<\/code>, <code>RCCB<\/code>, V\u00e0 <code>RCBO<\/code>, c\u00e2u tr\u1ea3 l\u1eddi ng\u1eafn g\u1ecdn l\u00e0:<\/p>\n<ul>\n<li><code>MCB<\/code> v\u00e0 <code>MCCB<\/code> ch\u1ee7 y\u1ebfu b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i <strong>qu\u00e1 t\u1ea3i<\/strong> v\u00e0 <strong>ng\u1eafn m\u1ea1ch<\/strong><\/li>\n<li><code>TI\u00caN<\/code>, <code>RCCB<\/code>, V\u00e0 <code>RCB<\/code> ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho <strong>b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0 ho\u1eb7c r\u00f2 r\u1ec9 \u0111\u1ea5t<\/strong><\/li>\n<li><code>RCBO<\/code> k\u1ebft h\u1ee3p <strong>b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/strong> 74: v\u1edbi <strong>b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng<\/strong> trong m\u1ed9t thi\u1ebft b\u1ecb<\/li>\n<\/ul>\n<p>\u0110\u00f3 l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i. S\u1ef1 nh\u1ea7m l\u1eabn th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u v\u00ec m\u1ed9t s\u1ed1 thu\u1eadt ng\u1eef n\u00e0y l\u00e0 t\u00ean thi\u1ebft b\u1ecb, trong khi nh\u1eefng thu\u1eadt ng\u1eef kh\u00e1c l\u00e0 c\u00e1c thu\u1eadt ng\u1eef danh m\u1ee5c r\u1ed9ng h\u01a1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00e1c nhau tr\u00ean c\u00e1c th\u1ecb tr\u01b0\u1eddng.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u00e0m cho s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00f3 tr\u1edf n\u00ean r\u00f5 r\u00e0ng, nhanh ch\u00f3ng v\u00e0 thi\u1ebft th\u1ef1c.<\/p>\n<h2>B\u1ea3ng so s\u00e1nh nhanh<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Infographic-comparing-the-differences-between-MCB-MCCB-RCB-RCD-RCCB-and-RCBO.webp\" alt=\"Infographic comparing the differences between MCB, MCCB, RCB, RCD, RCCB, and RCBO\" \/><figcaption><em>M\u1ed9t infographic k\u1ef9 thu\u1eadt t\u00f3m t\u1eaft c\u00e1c vai tr\u00f2 v\u00e0 h\u1ea1n ch\u1ebf b\u1ea3o v\u1ec7 ch\u00ednh c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ch kh\u00e1c nhau.<\/em><\/figcaption><\/figure>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">H\u1ea1n<\/th>\n<th style=\"padding: 8px;\">D\u1ea1ng \u0111\u1ea7y \u0111\u1ee7<\/th>\n<th style=\"padding: 8px;\">Vai tr\u00f2 b\u1ea3o v\u1ec7 ch\u00ednh<\/th>\n<th style=\"padding: 8px;\">Nh\u1eefng g\u00ec n\u00f3 kh\u00f4ng t\u1ef1 l\u00e0m \u0111\u01b0\u1ee3c<\/th>\n<th style=\"padding: 8px;\">S\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">MCB<\/td>\n<td style=\"padding: 8px;\">M\u00e1y c\u1eaft m\u1ea1ch thu nh\u1ecf<\/td>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch<\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng cung c\u1ea5p b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/td>\n<td style=\"padding: 8px;\">M\u1ea1ch cu\u1ed1i, b\u1ea3o v\u1ec7 nh\u00e1nh, b\u1ea3ng \u0111i\u1ec7n d\u00e2n d\u1ee5ng v\u00e0 th\u01b0\u01a1ng m\u1ea1i nh\u1eb9<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">MCCB<\/td>\n<td style=\"padding: 8px;\">M\u00e1y c\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac<\/td>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch c\u00f4ng su\u1ea5t cao h\u01a1n<\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng t\u1ef1 cung c\u1ea5p b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/td>\n<td style=\"padding: 8px;\">Ph\u00e2n ph\u1ed1i th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p, \u0111\u01b0\u1eddng d\u00e2y c\u1ea5p ngu\u1ed3n l\u1edbn h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCB<\/td>\n<td style=\"padding: 8px;\">Thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch d\u00f2ng d\u01b0<\/td>\n<td style=\"padding: 8px;\">Th\u01b0\u1eddng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn thu\u1eadt ng\u1eef thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/td>\n<td style=\"padding: 8px;\">\u00dd ngh\u0129a c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y theo th\u1ecb tr\u01b0\u1eddng v\u00e0 b\u1ed1i c\u1ea3nh s\u1ea3n ph\u1ea9m<\/td>\n<td style=\"padding: 8px;\">\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch l\u1ecfng l\u1ebbo trong m\u1ed9t s\u1ed1 danh m\u1ee5c ho\u1eb7c cu\u1ed9c tr\u00f2 chuy\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">TI\u00caN<\/td>\n<td style=\"padding: 8px;\">C\u00f2n L\u1ea1i Thi\u1ebft B\u1ecb Hi\u1ec7n T\u1ea1i<\/td>\n<td style=\"padding: 8px;\">Danh m\u1ee5c r\u1ed9ng cho c\u00e1c thi\u1ebft b\u1ecb ph\u00e1t hi\u1ec7n d\u00f2ng d\u01b0<\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb ch\u00ednh x\u00e1c duy nh\u1ea5t<\/td>\n<td style=\"padding: 8px;\">Ng\u00f4n ng\u1eef b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0 chung<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCCB<\/td>\n<td style=\"padding: 8px;\">B\u1ed9 ng\u1eaft m\u1ea1ch d\u00f2ng d\u01b0<\/td>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 d\u00f2ng d\u01b0 ho\u1eb7c r\u00f2 r\u1ec9 \u0111\u1ea5t<\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng cung c\u1ea5p b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i ho\u1eb7c ng\u1eafn m\u1ea1ch<\/td>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt khi c\u00f3 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng ri\u00eang bi\u1ec7t<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCBO<\/td>\n<td style=\"padding: 8px;\">Thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch d\u00f2ng d\u01b0 c\u00f3 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng<\/td>\n<td style=\"padding: 8px;\">K\u1ebft h\u1ee3p b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0, qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch<\/td>\n<td style=\"padding: 8px;\">Kh\u00f4ng lo\u1ea1i b\u1ecf s\u1ef1 c\u1ea7n thi\u1ebft c\u1ee7a vi\u1ec7c \u0111\u1ecbnh c\u1ee1 v\u00e0 ph\u1ed1i h\u1ee3p ch\u00ednh x\u00e1c<\/td>\n<td style=\"padding: 8px;\">C\u00e1c m\u1ea1ch c\u1ea7n b\u1ea3o v\u1ec7 k\u1ebft h\u1ee3p trong m\u1ed9t thi\u1ebft b\u1ecb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng \u0111\u1ed9c gi\u1ea3 mu\u1ed1n c\u00f3 \u0111\u1ecbnh ngh\u0129a t\u1eebng thi\u1ebft b\u1ecb tr\u01b0\u1edbc, VIOX \u0111\u00e3 c\u00f3 c\u00e1c trang h\u1ed7 tr\u1ee3 cho <a href=\"https:\/\/test.viox.com\/vi\/mcb-full-form-in-electrical\/\">D\u1ea1ng \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a MCB<\/a>, <a href=\"https:\/\/test.viox.com\/vi\/mccb-full-form-molded-case-circuit-breaker\/\">MCCB l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a<\/a>, V\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">RCCB d\u1ea1ng \u0111\u1ea7y \u0111\u1ee7<\/a>.<\/p>\n<h2>\u00dd ngh\u0129a c\u1ee7a m\u1ed7i thu\u1eadt ng\u1eef<\/h2>\n<p>Tr\u01b0\u1edbc khi so s\u00e1nh c\u00e1c thi\u1ebft b\u1ecb n\u00e0y, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i t\u00e1ch bi\u1ec7t <strong>c\u00e1c thu\u1eadt ng\u1eef b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng<\/strong> t\u1eeb <strong>c\u00e1c thu\u1eadt ng\u1eef b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/strong>.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Technical-diagram-showing-how-MCB-RCCB-and-RCBO-protection-functions-differ.webp\" alt=\"Technical diagram showing how MCB, RCCB, and RCBO protection functions differ\" \/><figcaption><em>S\u01a1 \u0111\u1ed3 k\u1ef9 thu\u1eadt minh h\u1ecda logic b\u1ea3o v\u1ec7 b\u00ean trong v\u00e0 \u0111\u01b0\u1eddng d\u1eabn ng\u1eaft m\u1ea1ch cho c\u00e1c thi\u1ebft b\u1ecb MCB, RCCB v\u00e0 RCBO.<\/em><\/figcaption><\/figure>\n<h3>MCB<\/h3>\n<p><code>MCB<\/code> vi\u1ebft t\u1eaft c\u1ee7a <strong>M\u00e1y c\u1eaft m\u1ea1ch thu nh\u1ecf<\/strong>.<\/p>\n<p>N\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c m\u1ea1ch ch\u1ed1ng l\u1ea1i:<\/p>\n<ul>\n<li>qu\u00e1 t\u1ea3i<\/li>\n<li>ng\u1eafn m\u1ea1ch<\/li>\n<\/ul>\n<p>MCB ph\u1ed5 bi\u1ebfn trong b\u1ea3ng ph\u00e2n ph\u1ed1i d\u00e2n d\u1ee5ng, m\u1ea1ch cu\u1ed1i v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng th\u01b0\u01a1ng m\u1ea1i nh\u1eb9 h\u01a1n. Ch\u00fang nh\u1ecf g\u1ecdn, c\u00f3 s\u1eb5n r\u1ed9ng r\u00e3i v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn theo \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n, \u0111\u01b0\u1eddng cong ng\u1eaft, kh\u1ea3 n\u0103ng c\u1eaft v\u00e0 c\u1ea5u h\u00ecnh c\u1ef1c.<\/p>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n trang \u0111\u1ecbnh ngh\u0129a s\u00e2u h\u01a1n, h\u00e3y xem <a href=\"https:\/\/test.viox.com\/vi\/mcb-full-form-in-electrical\/\">MCB Vi\u1ebft T\u1eaft Trong \u0110i\u1ec7n L\u1ef1c<\/a>.<\/p>\n<h3>MCCB<\/h3>\n<p><code>MCCB<\/code> vi\u1ebft t\u1eaft c\u1ee7a <strong>M\u00e1y c\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac<\/strong>.<\/p>\n<p>MCCB th\u1ef1c hi\u1ec7n vai tr\u00f2 b\u1ea3o v\u1ec7 c\u1ed1t l\u00f5i t\u01b0\u01a1ng t\u1ef1 nh\u01b0 MCB, nh\u01b0ng n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf nh\u1eefng n\u01a1i y\u00eau c\u1ea7u m\u1ee9c d\u00f2ng \u0111i\u1ec7n cao h\u01a1n, m\u1ee9c s\u1ef1 c\u1ed1 l\u1edbn h\u01a1n ho\u1eb7c c\u00e0i \u0111\u1eb7t b\u1ea3o v\u1ec7 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec1u h\u01a1n.<\/p>\n<p>C\u00e1c l\u00fd do \u0111i\u1ec3n h\u00ecnh \u0111\u1ec3 s\u1eed d\u1ee5ng MCCB thay v\u00ec MCB bao g\u1ed3m:<\/p>\n<ul>\n<li>m\u1ea1ch c\u1ea5p ngu\u1ed3n l\u1edbn h\u01a1n<\/li>\n<li>b\u1ea3ng \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p<\/li>\n<li>\u1ee9ng d\u1ee5ng \u0111\u1ed9ng c\u01a1 ho\u1eb7c ph\u00e2n ph\u1ed1i c\u00f3 n\u0103ng l\u01b0\u1ee3ng s\u1ef1 c\u1ed1 cao h\u01a1n<\/li>\n<li>c\u1ea7n c\u00e0i \u0111\u1eb7t ng\u1eaft c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh trong m\u1ed9t s\u1ed1 thi\u1ebft k\u1ebf<\/li>\n<\/ul>\n<p>\u0110\u1ec3 c\u00f3 b\u00e0i vi\u1ebft \u0111\u1ecbnh ngh\u0129a chuy\u00ean d\u1ee5ng, h\u00e3y xem <a href=\"https:\/\/test.viox.com\/vi\/mccb-full-form-molded-case-circuit-breaker\/\">D\u1ea1ng \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a MCCB: Aptomat v\u1ecf \u0111\u00fac<\/a>.<\/p>\n<h3>RCB<\/h3>\n<p><code>RCB<\/code> th\u01b0\u1eddng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn <strong>Thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch d\u00f2ng d\u01b0<\/strong>, nh\u01b0ng thu\u1eadt ng\u1eef n\u00e0y k\u00e9m ch\u00ednh x\u00e1c h\u01a1n <code>RCCB<\/code> hay <code>RCBO<\/code>.<\/p>\n<p>Trong th\u1ef1c t\u1ebf, <code>RCB<\/code> th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch l\u1ecfng l\u1ebbo trong c\u00e1c cu\u1ed9c tr\u00f2 chuy\u1ec7n, t\u00e0i li\u1ec7u c\u0169 ho\u1eb7c danh m\u1ee5c h\u1ed7n h\u1ee3p. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 nh\u1ea7m l\u1eabn. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi s\u1eed d\u1ee5ng n\u00f3 nh\u01b0 m\u1ed9t nh\u00e3n chung cho c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0, trong khi nh\u1eefng ng\u01b0\u1eddi kh\u00e1c s\u1eed d\u1ee5ng c\u00e1c t\u00ean c\u1ee5 th\u1ec3 h\u01a1n nh\u01b0 <code>RCCB<\/code> hay <code>RCBO<\/code>.<\/p>\n<p>V\u00ec v\u1eady, n\u1ebfu c\u00e2u h\u1ecfi mang t\u00ednh k\u1ef9 thu\u1eadt, t\u1ed1t h\u01a1n l\u00e0 kh\u00f4ng n\u00ean d\u1eebng l\u1ea1i \u1edf <code>RCB<\/code>. X\u00e1c nh\u1eadn xem thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp l\u00e0:<\/p>\n<ul>\n<li>m\u1ed9t <code>RCCB<\/code><\/li>\n<li>m\u1ed9t <code>RCBO<\/code><\/li>\n<li>ho\u1eb7c r\u1ed9ng h\u01a1n <code>TI\u00caN<\/code> Tham chi\u1ebfu danh m\u1ee5c<\/li>\n<\/ul>\n<h3>TI\u00caN<\/h3>\n<p><code>TI\u00caN<\/code> vi\u1ebft t\u1eaft c\u1ee7a <strong>C\u00f2n L\u1ea1i Thi\u1ebft B\u1ecb Hi\u1ec7n T\u1ea1i<\/strong>.<\/p>\n<p>\u0110\u00e2y th\u01b0\u1eddng l\u00e0 thu\u1eadt ng\u1eef danh m\u1ee5c r\u1ed9ng h\u01a1n. N\u00f3 m\u00f4 t\u1ea3 c\u00e1c thi\u1ebft b\u1ecb gi\u00e1m s\u00e1t s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng gi\u1eefa d\u00f2ng \u0111i\u1ec7n pha v\u00e0 d\u00f2ng \u0111i\u1ec7n trung t\u00ednh v\u00e0 ng\u1eaft khi d\u00f2ng \u0111i\u1ec7n d\u01b0 v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n<p>\u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 <code>RCCB<\/code> v\u00e0 <code>RCBO<\/code> c\u00f3 th\u1ec3 n\u1eb1m trong th\u1ea3o lu\u1eadn r\u1ed9ng h\u01a1n v\u1ec1 b\u1ea3o v\u1ec7 d\u00f2ng \u0111i\u1ec7n d\u01b0, nh\u01b0ng ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c thi\u1ebft b\u1ecb gi\u1ed1ng h\u1ec7t nhau.<\/p>\n<h3>RCCB<\/h3>\n<p><code>RCCB<\/code> vi\u1ebft t\u1eaft c\u1ee7a <strong>B\u1ed9 ng\u1eaft m\u1ea1ch d\u00f2ng d\u01b0<\/strong>.<\/p>\n<p>C\u00f4ng vi\u1ec7c c\u1ee7a n\u00f3 l\u00e0 ph\u00e1t hi\u1ec7n d\u00f2ng \u0111i\u1ec7n d\u01b0 ho\u1eb7c c\u00e1c \u0111i\u1ec1u ki\u1ec7n r\u00f2 r\u1ec9 \u0111\u1ea5t v\u00e0 ng\u1eaft m\u1ea1ch. Tuy nhi\u00ean, RCCB <strong>kh\u00f4ng t\u1ef1 cung c\u1ea5p b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch<\/strong>.<\/p>\n<p>\u0110\u00f3 l\u00e0 m\u1ed9t trong nh\u1eefng kh\u00e1c bi\u1ec7t quan tr\u1ecdng nh\u1ea5t tr\u00ean trang n\u00e0y.<\/p>\n<h3>RCBO<\/h3>\n<p><code>RCBO<\/code> vi\u1ebft t\u1eaft c\u1ee7a <strong>Thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch d\u00f2ng d\u01b0 c\u00f3 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng<\/strong>.<\/p>\n<p>RCBO k\u1ebft h\u1ee3p:<\/p>\n<ul>\n<li>b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/li>\n<li>b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i<\/li>\n<li>b\u1ea3o v\u1ec7 ng\u1eafn m\u1ea1ch<\/li>\n<\/ul>\n<p>trong m\u1ed9t th\u00e2n thi\u1ebft b\u1ecb.<\/p>\n<p>\u0110i\u1ec1u \u0111\u00f3 l\u00e0m cho n\u00f3 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf mu\u1ed1n b\u1ea3o v\u1ec7 k\u1ebft h\u1ee3p c\u1ea5p m\u1ea1ch m\u00e0 kh\u00f4ng c\u1ea7n gh\u00e9p n\u1ed1i RCCB v\u00e0 MCB ri\u00eang bi\u1ec7t cho c\u00f9ng m\u1ed9t m\u1ea1ch cu\u1ed1i c\u00f9ng.<\/p>\n<p>\u0110\u1ec3 \u0111\u1ecdc th\u00eam t\u1eadp trung v\u00e0o RCBO, VIOX c\u0169ng c\u00f3 <a href=\"https:\/\/test.viox.com\/vi\/how-to-select-the-right-rcbo\/\">C\u00e1ch ch\u1ecdn RCBO ph\u00f9 h\u1ee3p<\/a> v\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">So s\u00e1nh RCBO so v\u1edbi RCCB MCB v\u1ec1 kh\u00f4ng gian, chi ph\u00ed, t\u00ednh ch\u1ecdn l\u1ecdc<\/a>.<\/p>\n<h2>MCB so v\u1edbi MCCB<\/h2>\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa <code>MCB<\/code> v\u00e0 <code>MCCB<\/code> kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00e1i b\u1ea3o v\u1ec7 v\u00e0 c\u00e1i kia th\u00ec kh\u00f4ng. C\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng. S\u1ef1 kh\u00e1c bi\u1ec7t th\u1ef1c s\u1ef1 l\u00e0 <strong>ph\u1ea1m vi \u1ee9ng d\u1ee5ng v\u00e0 kh\u1ea3 n\u0103ng<\/strong>.<\/p>\n<h3>MCB th\u01b0\u1eddng ph\u00f9 h\u1ee3p h\u01a1n cho:<\/h3>\n<ul>\n<li>m\u1ea1ch cu\u1ed1i c\u00f9ng<\/li>\n<li>b\u1ea3o v\u1ec7 nh\u00e1nh<\/li>\n<li>c\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n nh\u1eb9 h\u01a1n<\/li>\n<li>b\u1ea3ng \u0111i\u1ec7n d\u00e2n d\u1ee5ng v\u00e0 th\u01b0\u01a1ng m\u1ea1i nh\u1eb9<\/li>\n<\/ul>\n<h3>MCCB th\u01b0\u1eddng ph\u00f9 h\u1ee3p h\u01a1n cho:<\/h3>\n<ul>\n<li>\u0111\u01b0\u1eddng c\u1ea5p ngu\u1ed3n<\/li>\n<li>b\u1ea3ng ph\u00e2n ph\u1ed1i l\u1edbn h\u01a1n<\/li>\n<li>c\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n cao h\u01a1n<\/li>\n<li>c\u00e1c c\u00e0i \u0111\u1eb7t c\u00f3 th\u1ec3 y\u00eau c\u1ea7u t\u00ednh linh ho\u1ea1t c\u00e0i \u0111\u1eb7t r\u1ed9ng h\u01a1n<\/li>\n<\/ul>\n<h3>B\u1ea3ng so s\u00e1nh MCB so v\u1edbi MCCB<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">T\u1ed1<\/th>\n<th style=\"padding: 8px;\">MCB<\/th>\n<th style=\"padding: 8px;\">MCCB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">Vai tr\u00f2 \u0111i\u1ec3n h\u00ecnh<\/td>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 m\u1ea1ch cu\u1ed1i c\u00f9ng<\/td>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 \u0111\u01b0\u1eddng c\u1ea5p ngu\u1ed3n v\u00e0 m\u1ea1ch l\u1edbn h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Xu h\u01b0\u1edbng ph\u1ea1m vi d\u00f2ng \u0111i\u1ec7n<\/td>\n<td style=\"padding: 8px;\">Th\u1ea5p h\u01a1n<\/td>\n<td style=\"padding: 8px;\">Cao h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh c\u00e0i \u0111\u1eb7t<\/td>\n<td style=\"padding: 8px;\">Th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n<\/td>\n<td style=\"padding: 8px;\">Th\u01b0\u1eddng r\u1ed9ng h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">M\u00f4i tr\u01b0\u1eddng ph\u1ed5 bi\u1ebfn<\/td>\n<td style=\"padding: 8px;\">Khu d\u00e2n c\u01b0 v\u00e0 th\u01b0\u01a1ng m\u1ea1i nh\u1eb9<\/td>\n<td style=\"padding: 8px;\">Th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">K\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd<\/td>\n<td style=\"padding: 8px;\">Nh\u1ecf g\u1ecdn h\u01a1n<\/td>\n<td style=\"padding: 8px;\">L\u1edbn h\u01a1n v\u00e0 ch\u1ecbu t\u1ea3i n\u1eb7ng h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ec3 c\u00f3 m\u1ed9t b\u00e0i vi\u1ebft s\u00e2u h\u01a1n ch\u1ec9 t\u1eadp trung v\u00e0o c\u1eb7p n\u00e0y, h\u00e3y xem <a href=\"https:\/\/test.viox.com\/vi\/mccb-vs-mcb\/\">MCCB so v\u1edbi MCB<\/a>.<\/p>\n<h2>RCB so v\u1edbi RCD so v\u1edbi RCCB<\/h2>\n<p>Nh\u00f3m n\u00e0y t\u1ea1o ra nhi\u1ec1u nh\u1ea7m l\u1eabn nh\u1ea5t v\u00ec t\u00ean nghe c\u00f3 v\u1ebb gi\u1ed1ng nhau, nh\u01b0ng ch\u00fang kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf c\u00f9ng m\u1ed9t m\u1ee9c \u0111\u1ed9 c\u1ee5 th\u1ec3.<\/p>\n<h3>C\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ec3 hi\u1ec3u ch\u00fang<\/h3>\n<ul>\n<li><code>TI\u00caN<\/code> th\u01b0\u1eddng l\u00e0 <strong>thu\u1eadt ng\u1eef danh m\u1ee5c r\u1ed9ng<\/strong><\/li>\n<li><code>RCCB<\/code> l\u00e0 m\u1ed9t <strong>lo\u1ea1i thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3<\/strong><\/li>\n<li><code>RCB<\/code> th\u01b0\u1eddng l\u00e0 m\u1ed9t <strong>nh\u00e3n l\u1ecfng l\u1ebbo ho\u1eb7c k\u00e9m ch\u00ednh x\u00e1c h\u01a1n<\/strong><\/li>\n<\/ul>\n<p>\u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 khi ai \u0111\u00f3 h\u1ecfi v\u1ec1 <code>RCD so v\u1edbi RCCB<\/code>, c\u00e2u tr\u1ea3 l\u1eddi th\u01b0\u1eddng kh\u00f4ng ph\u1ea3i l\u00e0 so s\u00e1nh tr\u1ef1c ti\u1ebfp \u201ct\u1ed1t h\u01a1n hay t\u1ec7 h\u01a1n\u201d. N\u00f3 gi\u1ed1ng m\u1ed9t c\u00e2u h\u1ecfi v\u1ec1 <strong>danh m\u1ee5c so v\u1edbi t\u00ean thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3<\/strong>.<\/p>\n<h3>Gi\u1ea3i th\u00edch th\u1ef1c t\u1ebf<\/h3>\n<p>N\u1ebfu m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, l\u1ecbch tr\u00ecnh b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c danh m\u1ee5c s\u1ea3n ph\u1ea9m n\u00f3i <code>TI\u00caN<\/code>, b\u1ea1n n\u00ean ki\u1ec3m tra:<\/p>\n<ul>\n<li>li\u1ec7u n\u00f3 c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 d\u00f2ng \u0111i\u1ec7n d\u01b0 chung hay kh\u00f4ng<\/li>\n<li>li\u1ec7u thi\u1ebft b\u1ecb d\u1ef1 \u0111\u1ecbnh c\u00f3 th\u1ef1c s\u1ef1 l\u00e0 m\u1ed9t <code>RCCB<\/code><\/li>\n<li>li\u1ec7u d\u1ef1 \u00e1n c\u00f3 th\u1ef1c s\u1ef1 c\u1ea7n m\u1ed9t <code>RCBO<\/code> thay th\u1ebf hay kh\u00f4ng<\/li>\n<\/ul>\n<p>\u0110\u00e2y l\u00e0 n\u01a1i thu\u1eadt ng\u1eef k\u00e9m g\u00e2y ra sai s\u00f3t trong mua s\u1eafm.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Electrician-inspecting-a-distribution-board-with-MCB-RCCB-and-RCBO-devices-installed.webp\" alt=\"Electrician inspecting a distribution board with MCB, RCCB, and RCBO devices installed\" \/><figcaption><em>Th\u1ee3 \u0111i\u1ec7n ki\u1ec3m tra an to\u00e0n b\u1ea3ng ph\u00e2n ph\u1ed1i c\u00f3 nhi\u1ec1u th\u00e0nh ph\u1ea7n MCB, RCCB v\u00e0 RCBO.<\/em><\/figcaption><\/figure>\n<h2>T\u1ea1i sao RCBO l\u1ea1i kh\u00e1c bi\u1ec7t<\/h2>\n<p>RCBO quan tr\u1ecdng v\u00ec n\u00f3 k\u1ebft n\u1ed1i hai h\u1ecd b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn \u1edf tr\u00ean.<\/p>\n<p>M\u1ed9t <code>MCB<\/code> b\u1ea3o v\u1ec7 ch\u1ed1ng qu\u00e1 d\u00f2ng.<br \/>\nM\u1ed9t <code>RCCB<\/code> b\u1ea3o v\u1ec7 ch\u1ed1ng d\u00f2ng \u0111i\u1ec7n d\u01b0.<br \/>\nM\u1ed9t <code>RCBO<\/code> k\u1ebft h\u1ee3p c\u1ea3 hai.<\/p>\n<h3>RCBO so v\u1edbi RCCB<\/h3>\n<p>N\u1ebfu b\u1ea1n so s\u00e1nh <code>RCBO<\/code> v\u00e0 <code>RCCB<\/code>, s\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh r\u1ea5t \u0111\u01a1n gi\u1ea3n:<\/p>\n<ul>\n<li><code>RCCB<\/code> c\u1ea7n b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng ri\u00eang bi\u1ec7t \u1edf n\u01a1i kh\u00e1c trong thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng<\/li>\n<li><code>RCBO<\/code> \u0111\u00e3 bao g\u1ed3m b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u \u0111\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn:<\/p>\n<ul>\n<li>kh\u00f4ng gian t\u1ee7 \u0111i\u1ec7n<\/li>\n<li>chi\u1ebfn l\u01b0\u1ee3c ch\u1ecdn l\u1ecdc m\u1ea1ch<\/li>\n<li>c\u1ea5u tr\u00fac chi ph\u00ed<\/li>\n<li>c\u00f4 l\u1eadp l\u1ed7i \u1edf c\u1ea5p \u0111\u1ed9 m\u1ea1ch<\/li>\n<\/ul>\n<p>\u0110\u1ec3 c\u00f3 phi\u00ean b\u1ea3n so s\u00e1nh s\u00e2u h\u01a1n, h\u00e3y s\u1eed d\u1ee5ng <a href=\"https:\/\/test.viox.com\/vi\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">So s\u00e1nh RCBO so v\u1edbi RCCB MCB v\u1ec1 kh\u00f4ng gian, chi ph\u00ed, t\u00ednh ch\u1ecdn l\u1ecdc<\/a>.<\/p>\n<h3>RCBO so v\u1edbi MCB<\/h3>\n<p>N\u1ebfu b\u1ea1n so s\u00e1nh <code>RCBO<\/code> v\u00e0 <code>MCB<\/code>, s\u1ef1 kh\u00e1c bi\u1ec7t c\u0169ng r\u1ea5t \u0111\u01a1n gi\u1ea3n:<\/p>\n<ul>\n<li><code>MCB<\/code> = ch\u1ec9 qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch<\/li>\n<li><code>RCBO<\/code> = qu\u00e1 t\u1ea3i, ng\u1eafn m\u1ea1ch v\u00e0 d\u00f2ng d\u01b0<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng t\u1ef1 \u0111\u1ed9ng c\u00f3 ngh\u0129a l\u00e0 RCBO lu\u00f4n l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang. N\u00f3 c\u00f3 ngh\u0129a l\u00e0 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 r\u1ed9ng h\u01a1n v\u00e0 \u1ee9ng d\u1ee5ng s\u1ebd quy\u1ebft \u0111\u1ecbnh l\u1ef1a ch\u1ecdn.<\/p>\n<h2>C\u00e1ch ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p<\/h2>\n<p>N\u1ebfu ng\u01b0\u1eddi \u0111\u1ecdc kh\u00f4ng c\u00f2n ch\u1ec9 so s\u00e1nh t\u00ean, c\u00e2u h\u1ecfi ti\u1ebfp theo th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Annotated-panel-layout-showing-typical-applications-of-MCB-MCCB-RCCB-and-RCBO-in-one-system.webp\" alt=\"Annotated panel layout showing typical applications of MCB, MCCB, RCCB, and RCBO in one system\" \/><figcaption><em>B\u1ea3n \u0111\u1ed3 b\u1ea3ng ph\u00e2n ph\u1ed1i \u0111i\u1ec7n h\u1ea1 th\u1ebf c\u00f3 ch\u00fa th\u00edch th\u1ec3 hi\u1ec7n c\u00e1c ph\u1ea7n \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf \u0111i\u1ec3n h\u00ecnh cho t\u1eebng lo\u1ea1i thi\u1ebft b\u1ecb.<\/em><\/figcaption><\/figure>\n<h3>B\u1ea3ng l\u1ef1a ch\u1ecdn<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">T\u00ecnh h\u00ecnh<\/th>\n<th style=\"padding: 8px;\">Th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch xem x\u00e9t<\/th>\n<th style=\"padding: 8px;\">T\u1ea1i sao<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng m\u1ea1ch cu\u1ed1i ti\u00eau chu\u1ea9n<\/td>\n<td style=\"padding: 8px;\">MCB<\/td>\n<td style=\"padding: 8px;\">Nh\u1ecf g\u1ecdn v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u m\u1ea1ch nh\u00e1nh<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Ngu\u1ed3n c\u1ea5p d\u00f2ng \u0111i\u1ec7n cao h\u01a1n ho\u1eb7c ph\u00e2n ph\u1ed1i c\u00f4ng nghi\u1ec7p<\/td>\n<td style=\"padding: 8px;\">MCCB<\/td>\n<td style=\"padding: 8px;\">Ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng su\u1ea5t cao h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">B\u1ea3o v\u1ec7 r\u00f2 r\u1ec9 v\u1edbi thi\u1ebft b\u1ecb qu\u00e1 d\u00f2ng ri\u00eang bi\u1ec7t<\/td>\n<td style=\"padding: 8px;\">RCCB<\/td>\n<td style=\"padding: 8px;\">Vai tr\u00f2 b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">K\u1ebft h\u1ee3p b\u1ea3o v\u1ec7 r\u00f2 r\u1ec9 v\u00e0 qu\u00e1 d\u00f2ng tr\u00ean m\u1ed9t m\u1ea1ch<\/td>\n<td style=\"padding: 8px;\">RCBO<\/td>\n<td style=\"padding: 8px;\">Mang nhi\u1ec1u ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 v\u00e0o m\u1ed9t thi\u1ebft b\u1ecb<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Thu\u1eadt ng\u1eef d\u00f2ng d\u01b0 theo ngh\u0129a r\u1ed9ng<\/td>\n<td style=\"padding: 8px;\">TI\u00caN<\/td>\n<td style=\"padding: 8px;\">Thu\u1eadt ng\u1eef danh m\u1ee5c, kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb cu\u1ed1i c\u00f9ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>C\u00e1c c\u00e2u h\u1ecfi c\u1ea7n h\u1ecfi tr\u01b0\u1edbc khi ch\u1ecdn<\/h3>\n<ul>\n<li>Nhu c\u1ea7u ch\u00ednh l\u00e0 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng, b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0 hay c\u1ea3 hai?<\/li>\n<li>\u0110\u00e2y l\u00e0 m\u1ea1ch cu\u1ed1i hay m\u1ea1ch c\u1ea5p ngu\u1ed3n l\u1edbn h\u01a1n?<\/li>\n<li>M\u1ee9c \u0111\u1ed9 s\u1ef1 c\u1ed1 d\u1ef1 ki\u1ebfn l\u00e0 bao nhi\u00eau?<\/li>\n<li>Kh\u00f4ng gian t\u1ee7 \u0111i\u1ec7n c\u00f3 h\u1ea1n ch\u1ebf kh\u00f4ng?<\/li>\n<li>Thi\u1ebft k\u1ebf c\u00f3 y\u00eau c\u1ea7u c\u00e1ch ly \u1edf c\u1ea5p \u0111\u1ed9 m\u1ea1ch thay v\u00ec nh\u00f3m nhi\u1ec1u m\u1ea1ch d\u01b0\u1edbi m\u1ed9t thi\u1ebft b\u1ecb d\u00f2ng d\u01b0 kh\u00f4ng?<\/li>\n<li>C\u00e1c quy t\u1eafc \u0111\u1ecba ph\u01b0\u01a1ng, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt d\u1ef1 \u00e1n v\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t y\u00eau c\u1ea7u g\u00ec?<\/li>\n<\/ul>\n<h2>Sai L\u1ea7m ph\u1ed5 bi\u1ebfn \u0111\u1ec3 Tr\u00e1nh<\/h2>\n<p>\u0110\u00e2y l\u00e0 nh\u1eefng sai l\u1ea7m g\u00e2y ra nhi\u1ec1u nh\u1ea7m l\u1eabn nh\u1ea5t trong c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf:<\/p>\n<h3>1. Coi RCD, RCCB v\u00e0 RCB l\u00e0 ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 thay th\u1ebf cho nhau<\/h3>\n<p>Ch\u00fang l\u00e0 c\u00e1c thu\u1eadt ng\u1eef li\u00ean quan ch\u1eb7t ch\u1ebd, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 c\u00e1c ch\u1ea5t thay th\u1ebf ch\u00ednh x\u00e1c. Ng\u00f4n ng\u1eef danh m\u1ee5c v\u00e0 t\u00ean thi\u1ebft b\u1ecb n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra c\u1ea9n th\u1eadn.<\/p>\n<h3>2. Gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng RCCB cung c\u1ea5p b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng<\/h3>\n<p>N\u00f3 kh\u00f4ng. RCCB t\u1eadp trung v\u00e0o b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0 v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ki\u1ebfn tr\u00fac b\u1ea3o v\u1ec7 ch\u00ednh x\u00e1c.<\/p>\n<h3>3. Ch\u1ecdn MCB khi c\u1ea7n b\u1ea3o v\u1ec7 k\u1ebft h\u1ee3p<\/h3>\n<p>N\u1ebfu m\u1ea1ch c\u1ea7n c\u1ea3 b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0 v\u00e0 qu\u00e1 d\u00f2ng trong m\u1ed9t thi\u1ebft b\u1ecb, th\u00ec ch\u1ec9 MCB l\u00e0 kh\u00f4ng \u0111\u1ee7.<\/p>\n<h3>4. S\u1eed d\u1ee5ng RCBO l\u00e0m m\u1eb7c \u0111\u1ecbnh chung m\u00e0 kh\u00f4ng ki\u1ec3m tra s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a \u1ee9ng d\u1ee5ng<\/h3>\n<p>RCBO r\u1ea5t m\u1ea1nh m\u1ebd, nh\u01b0ng vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf m\u1ea1ch, \u0111\u1ecbnh m\u1ee9c, \u0111\u1ed9 nh\u1ea1y d\u00f2ng d\u01b0, kh\u1ea3 n\u0103ng c\u1eaft v\u00e0 ph\u1ed1i h\u1ee3p.<\/p>\n<h3>5. B\u1ecf qua s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ph\u1ea1m vi d\u00f2ng \u0111i\u1ec7n\/\u1ee9ng d\u1ee5ng c\u1ee7a MCB v\u00e0 MCCB<\/h3>\n<p>C\u00e1c thi\u1ebft b\u1ecb n\u00e0y ch\u1ed3ng ch\u00e9o v\u1ec1 m\u1eb7t kh\u00e1i ni\u1ec7m, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng trong c\u00f9ng m\u1ed9t c\u1eeda s\u1ed5 \u1ee9ng d\u1ee5ng.<\/p>\n<h2>Li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/vi\/mcb-full-form-in-electrical\/\">MCB Vi\u1ebft T\u1eaft Trong \u0110i\u1ec7n L\u1ef1c<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/mccb-full-form-molded-case-circuit-breaker\/\">D\u1ea1ng \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a MCCB: Aptomat v\u1ecf \u0111\u00fac<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">RCCB Full Form Understanding Residual Current Circuit Breakers (Hi\u1ec3u \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 RCCB - Aptomat ch\u1ed1ng d\u00f2ng d\u01b0)<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/mccb-vs-mcb\/\">MCCB so v\u1edbi MCB<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">So s\u00e1nh RCBO so v\u1edbi RCCB MCB v\u1ec1 kh\u00f4ng gian, chi ph\u00ed, t\u00ednh ch\u1ecdn l\u1ecdc<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/rcbo-vs-afdd-difference-guide\/\">H\u01b0\u1edbng d\u1eabn v\u1ec1 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa RCBO v\u00e0 AFDD<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/how-to-select-the-right-rcbo\/\">C\u00e1ch ch\u1ecdn RCBO ph\u00f9 h\u1ee3p<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/how-to-select-an-mccb-for-a-panel\/\">C\u00e1ch ch\u1ecdn MCCB cho b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n<\/a><\/li>\n<\/ul>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa MCB v\u00e0 MCCB l\u00e0 g\u00ec?<\/h3>\n<p>C\u1ea3 hai \u0111\u1ec1u b\u1ea3o v\u1ec7 ch\u1ed1ng qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch, nh\u01b0ng MCCB th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c \u1ee9ng d\u1ee5ng l\u1edbn h\u01a1n v\u00e0 c\u00f4ng su\u1ea5t cao h\u01a1n, trong khi MCB th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u1ea1ch cu\u1ed1i c\u00f9ng v\u00e0 ph\u00e2n ph\u1ed1i t\u1ea3i nh\u1eb9 h\u01a1n.<\/p>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa RCD v\u00e0 RCCB l\u00e0 g\u00ec?<\/h3>\n<p>RCD th\u01b0\u1eddng l\u00e0 thu\u1eadt ng\u1eef chung h\u01a1n, trong khi RCCB \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t thi\u1ebft b\u1ecb ng\u1eaft m\u1ea1ch d\u00f2ng d\u01b0 c\u1ee5 th\u1ec3 h\u01a1n.<\/p>\n<h3>RCB c\u00f3 gi\u1ed1ng v\u1edbi RCCB kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng v\u1eady. RCB th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t thu\u1eadt ng\u1eef l\u1ecfng l\u1ebbo ho\u1eb7c \u0111\u01a1n gi\u1ea3n, trong khi RCCB l\u00e0 m\u1ed9t t\u00ean thi\u1ebft b\u1ecb ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa RCCB v\u00e0 RCBO l\u00e0 g\u00ec?<\/h3>\n<p>RCCB ch\u1ec9 cung c\u1ea5p b\u1ea3o v\u1ec7 ch\u1ed1ng d\u00f2ng d\u01b0, trong khi RCBO k\u1ebft h\u1ee3p b\u1ea3o v\u1ec7 ch\u1ed1ng d\u00f2ng d\u01b0 v\u1edbi b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch.<\/p>\n<h3>RCBO c\u00f3 t\u1ed1t h\u01a1n MCB kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng ph\u1ea3i trong m\u1ecdi \u1ee9ng d\u1ee5ng. RCBO cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 r\u1ed9ng h\u01a1n MCB, nh\u01b0ng l\u1ef1a ch\u1ecdn \u0111\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee5c ti\u00eau b\u1ea3o v\u1ec7, thi\u1ebft k\u1ebf m\u1ea1ch v\u00e0 y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Comparison photo of MCB, MCCB, RCD, RCCB, and RCBO electrical protection devices. If you are trying to understand the difference between MCB, MCCB, RCB, RCD, RCCB, and RCBO, the short answer is this: MCB and MCCB mainly protect against overload and short circuit RCD, RCCB, and RCB are mainly used for residual-current or earth-leakage protection [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18344,"comment_status":"closed","ping_status":"open","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-18343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/18343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/comments?post=18343"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/18343\/revisions"}],"predecessor-version":[{"id":21685,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/18343\/revisions\/21685"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/18344"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=18343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=18343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=18343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}