{"id":20121,"date":"2025-12-01T14:52:55","date_gmt":"2025-12-01T06:52:55","guid":{"rendered":"https:\/\/viox.com\/?p=20121"},"modified":"2025-11-16T15:02:14","modified_gmt":"2025-11-16T07:02:14","slug":"load-center-vs-panelboard-nec-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/ko\/load-center-vs-panelboard-nec-guide\/","title":{"rendered":"\ub85c\ub4dc \uc13c\ud130 vs \ud328\ub110\ubcf4\ub4dc: \uc5d4\uc9c0\ub2c8\uc5b4 \uc120\ud0dd \uac00\uc774\ub4dc (NEC \uc694\uad6c \uc0ac\ud56d \ud3ec\ud568)"},"content":{"rendered":"
\n
The permit\u2019s approved. Installation\u2019s complete. $15,000 invested.The electrical inspector arrives Tuesday morning, clipboard in hand, and walks straight to your newly installed distribution panel\u2014the one you spec\u2019d as a load center because the price was right and the building seemed small enough. His pen hovers over the permit. \u201cThis won\u2019t pass.\u201d Red tag. Your commercial tenant build-out just became a complete do-over, and the general contractor is already calculating delay penalties.<\/p>\n

What did you miss? And more importantly, how do you choose between a load center and a panelboard so this never happens again?<\/p>\n

The answer isn\u2019t in the voltage rating or the price difference. It\u2019s buried in NEC Article 408, UL 67 listing requirements, and a handful of selection criteria that most spec sheets conveniently ignore. Let\u2019s fix that.<\/p>\n

Load Center vs Panelboard: The Legal Truth<\/h2>\n

Here\u2019s what your electrical distributor won\u2019t tell you: according to NEC \uc81c408\uc870<\/a> \uadf8\ub9ac\uace0 UL Standard 67<\/a>, there is no difference between a \u201cload center\u201d and a \u201cpanelboard.\u201d<\/strong><\/p>\n

Both terms refer to the same thing\u2014a distribution assembly with buses and overcurrent protective devices designed to be placed in a cabinet or enclosure. The NEC uses only one word: panelboard. UL 67 (the standard that governs testing and listing) uses the same single term. \u201cLoad center\u201d is marketing terminology that emerged in North America to describe smaller, lower-cost panelboards sold primarily for residential applications.<\/p>\n

So if they\u2019re legally identical, why does the distinction matter? Because the physical construction differences<\/strong> \uadf8\ub9ac\uace0 UL listing variations<\/strong> create real-world performance gaps that can kill your installation\u2014sometimes literally.<\/p>\n

The UL 67 Listing Trap Most Engineers Miss<\/h3>\n

Here\u2019s where it gets technical, and where installations fail inspection.<\/p>\n

UL 67 allows two types of panelboard listings:<\/p>\n

    \n
  1. \u201cPanelboard\u201d<\/strong> (panel only, no enclosure)<\/li>\n
  2. \u201cEnclosed Panelboard\u201d<\/strong> (panel + enclosure tested as complete assembly)<\/li>\n<\/ol>\n

    This difference matters because of short-circuit current ratings<\/strong>. When a panelboard is listed without a specific enclosure\u2014just the bare panel\u2014UL gives it a default short-circuit current rating of 10,000 amperes (10kA) maximum<\/strong>. That\u2019s it. Doesn\u2019t matter if the breakers inside are rated for 65kA or 100kA interrupting capacity. The assembly caps out at 10kA.<\/p>\n

    This is \u201cThe 10kA Default Trap.\u201d<\/strong><\/p>\n

    If your building\u2019s available fault current at the panel location exceeds 10,000A (common in commercial buildings close to the utility transformer), and you installed a \u201cPanelboard\u201d-only listing? Code violation. NEC 110.9 requires that all equipment have an interrupting rating at least equal to the maximum available fault current<\/strong>.<\/p>\n

    Enclosed panelboards\u2014the ones tested with their specific cabinets\u2014can be listed for much higher short-circuit ratings (22kA, 42kA, 65kA, or more) because the entire assembly was tested as a system. Load centers, being smaller residential-focused units, are typically listed as enclosed panelboards but rarely exceed 22kA ratings.<\/p>\n

    \ud504\ub85c \ub05d#1:<\/strong> Before specifying any panelboard or load center, verify the UL listing type. Look for \u201cEnclosed Panelboard\u201d on the label if you need ratings above 10kA, and always calculate available fault current per NEC 110.24(A)\u2014it\u2019s required in all but one- and two-family dwellings anyway.<\/p><\/blockquote>\n

    Beyond the Spec Sheet: 6 Real Selection Criteria<\/h2>\n

    Forget the comparison tables that just list voltage and amperage. Here are the technical factors that actually determine whether your installation passes inspection and serves the building for its design life.<\/p>\n

    1. Breaker Mounting: The Bolt-On Difference<\/h3>\n

    Load centers use plug-in breakers<\/strong> exclusively. You snap them onto the bus\u2014quick, easy, cheap. Panelboards offer both plug-in and bolt-on breakers<\/strong>.<\/p>\n

    Why does this matter? Vibration, back-feeding, and connection integrity.<\/strong><\/p>\n

    Plug-in breakers work fine in quiet residential basements. Move that panel to an industrial plant with compressors shaking the building, or deploy it for solar back-feed? Problems. NEC 408.36(D) directly addresses this risk: \u201cPlug-in-type overcurrent protection devices\u2026that are backfed\u2026shall be secured in place by an additional fastener that requires other than a pull to release the device.\u201d<\/p>\n

    We\u2019ve seen installations where back-fed solar breakers weren\u2019t properly secured\u2014just friction-held with the standard plug-in clips. First inspection? Red tag. The breaker could literally be pulled off the bus while energized, exposing live 240V \ubc84\uc2a4 \ubc14<\/a>.<\/p>\n

    Bolt-on breakers eliminate this risk. The breaker bolts directly to the bus with mechanical fasteners. The connection can\u2019t vibrate loose, can\u2019t be accidentally pulled free, and provides superior current-carrying capacity for high-amperage circuits. This is why panelboards\u2014especially those rated above 225A\u2014increasingly use bolt-on construction.<\/p>\n

    Pro-Tip#2:<\/strong> For any back-fed application (solar, generator, energy storage), verify NEC 408.36(D) compliance. If using plug-in breakers, the \u201cadditional fastener\u201d usually means a specific hold-down kit from the manufacturer. If the inspector doesn\u2019t see it, you\u2019re getting tagged.<\/p><\/blockquote>\n

    2. Voltage & Phase: The Three-Phase Dividing Line<\/h3>\n

    This is the clearest hard stop between load centers and panelboards.<\/p>\n

    Load centers:<\/strong> Maximum 240 volts, single-phase only.<\/p>\n

    Panelboards:<\/strong> Up to 600 volts (or higher with special designs), single-phase or three-phase.<\/p>\n

    If your load calculation includes any three-phase equipment\u2014commercial HVAC, machine tools, large motors, data center PDUs\u2014the load center option just disappeared. You need a panelboard. There\u2019s no way around it.<\/p>\n

    \ub2e8\uc0c1 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c\ub3c4 \uc804\uc555\uc740 \uc911\uc694\ud569\ub2c8\ub2e4. 208Y\/120V \uc0c1\uc5c5\uc6a9 \uac74\ubb3c(3\uc0c1 \uc720\ud2f8\ub9ac\ud2f0 \uc11c\ube44\uc2a4\uc5d0\uc11c \uacf5\uae09\ub418\ub294 \ub2e4\uc911 \uc784\ucc28 \uacf5\uac04\uc5d0\uc11c \ud754\ud788 \ubcfc \uc218 \uc788\uc74c)\uc5d0\ub294 120\/240V \ub85c\ub4dc \uc13c\ud130\uac00 \uc544\ub2cc \ud328\ub110\ubcf4\ub4dc\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc804\uae30\uc801\uc73c\ub85c \ud638\ud658\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n

    3. \uc554\ud398\uc5b4 \uc6a9\ub7c9 \uc81c\ud55c: \ub85c\ub4dc \uc13c\ud130\uac00 \uba48\ucd94\ub294 \uacf3<\/h3>\n

    \ub85c\ub4dc \uc13c\ud130\uc758 \ucd5c\ub300 \uc6a9\ub7c9\uc740 400\uc554\ud398\uc5b4<\/strong>. \uc785\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc740 200A \uc774\ud558\uc785\ub2c8\ub2e4.<\/p>\n

    \ud328\ub110\ubcf4\ub4dc\ub294 100A\uc5d0\uc11c 1,200A<\/strong> \uae4c\uc9c0 \ud655\uc7a5\ub429\ub2c8\ub2e4(\uc2a4\uc704\uce58\ubcf4\ub4dc\uac00 \uadf8 \uc774\uc0c1\uc744 \ub2f4\ub2f9).<\/p>\n

    \uc5ec\uae30 \ud568\uc815\uc774 \uc788\uc2b5\ub2c8\ub2e4. 400A \ub85c\ub4dc \uc13c\ud130 \uc815\uaca9\uc740 \ubc84\uc2a4 \uc815\uaca9<\/strong>, \uc774\uba70 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc6a9\ub7c9\uc774 \uc544\ub2d9\ub2c8\ub2e4. NEC 215.2(A)\uc5d0\uc11c\ub294 \uacf5\uae09\uc120 \uc554\ud398\uc5b4 \uc6a9\ub7c9\uc774 \u201c\ube44\uc5f0\uc18d \ubd80\ud558 \ub354\ud558\uae30 \uc5f0\uc18d \ubd80\ud558\uc758 125%\u201d \uc774\uc0c1\uc774\uc5b4\uc57c \ud55c\ub2e4\uace0 \uaddc\uc815\ud569\ub2c8\ub2e4. NEC 408.36\uc5d0\uc11c\ub294 \ud328\ub110\ubcf4\ub4dc\ub97c \ubcf4\ud638\ud558\ub294 \uacfc\uc804\ub958 \ubcf4\ud638 \uc7a5\uce58\uac00 \ud328\ub110\ubcf4\ub4dc\uc758 \uc815\uaca9\uc744 \ucd08\uacfc\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4\uace0 \uaddc\uc815\ud569\ub2c8\ub2e4.<\/p>\n

    \ub530\ub77c\uc11c 300A \uc5f0\uc18d \ubd80\ud558<\/strong> (24\uc2dc\uac04 \uc5f0\uc911\ubb34\ud734 \uc870\uba85 \ubc0f HVAC\uac00 \uc788\ub294 \uc0c1\uc5c5\uc6a9 \uac74\ubb3c\uc5d0\uc11c \ud754\ud788 \ubcfc \uc218 \uc788\uc74c)\uac00 \uc788\ub294 \uacbd\uc6b0 \ucd5c\uc18c \uacc4\uc0b0\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n

    300A \u00d7 125% = \ucd5c\uc18c 375A \uacf5\uae09\uc120\/\ucc28\ub2e8\uae30 \ud06c\uae30<\/strong><\/p>\n

    400A \ub85c\ub4dc \uc13c\ud130\uc758 \uc8fc \ucc28\ub2e8\uae30\ub294 375A \ub610\ub294 400A\uc5ec\uc57c \ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ubb38\uc81c\ub294 400A \ubc84\uc2a4\uc5d0\uc11c 400A \uc8fc \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 \uc5f0\uc18d \ubd80\ud558\ub97c \uc801\uc808\ud558\uac8c \ubcf4\ud638\ud558\ub294 \ub370 \uc804\uccb4 \uc815\uaca9\uc744 \uc18c\ube44\ud588\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \ubaa8<\/strong> \ube44\uc5f0\uc18d \ubd80\ud558\ub97c \ucd94\uac00\ud558\uba74 \uc6a9\ub7c9\uc744 \ucd08\uacfc\ud569\ub2c8\ub2e4.<\/p>\n

    \uc62c\ubc14\ub978 \ud574\uacb0\ucc45\uc740 \ubb34\uc5c7\uc77c\uae4c\uc694? 600A \ub610\ub294 800A \ubc84\uc2a4 \uc815\uaca9\uc758 \ud328\ub110\ubcf4\ub4dc\ub97c \uc9c0\uc815\ud558\uc2ed\uc2dc\uc624. \uadf8\ub7ec\uba74 375-400A \uc8fc \ucc28\ub2e8\uae30 \uadf8\ub9ac\uace0<\/strong> \ubbf8\ub798 \uc131\uc7a5\uc744 \uc704\ud55c \uacf5\uac04\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

    \uc774\uac83\uc740 \ub2e4\uc74c \uac1c\ub150\uc73c\ub85c \uc9c1\uc811 \uc5f0\uacb0\ub429\ub2c8\ub2e4...<\/p>\n

    4. \ud655\uc7a5\uc131: 2\ub144 \ub9cc\uc5d0 \uac00\ub4dd \ucc28\ub294 \ubb38\uc81c<\/h3>\n

    \ub85c\ub4dc \uc13c\ud130\ub294 \uace0\uc815 \uc6a9\ub7c9<\/strong>. \uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uacf5\uac04 \uc218\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 12, 20, 24, 30 \ub610\ub294 40\uac1c\uc785\ub2c8\ub2e4. \uc77c\ub2e8 \uac00\ub4dd \ucc28\uba74 \uac00\ub4dd \ucc2c \uac83\uc785\ub2c8\ub2e4. \uc720\uc77c\ud55c \uc635\uc158\uc740 \ud558\uc704 \ud328\ub110 \ub610\ub294 \uc644\uc804 \uad50\uccb4\uc785\ub2c8\ub2e4.<\/p>\n

    \ud328\ub110\ubcf4\ub4dc\ub294 \ubaa8\ub4c8\uc2dd<\/strong>. \uc785\ub2c8\ub2e4. \ub9ce\uc740 \uc0c1\uc5c5\uc6a9 \ud328\ub110\ubcf4\ub4dc\ub294 \ucd94\uac00 \uc139\uc158\uc73c\ub85c \ud655\uc7a5\ud558\uac70\ub098 \ubbf8\ub798\uc758 \ucc28\ub2e8\uae30\ub97c \uc704\ud55c \uacf5\uac04\uc744 \ucc98\uc74c\ubd80\ud130 \uc124\uacc4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

    \uc5ec\uae30\uc5d0\uc11c \uc6b0\ub9ac\uac00 \ub04a\uc784\uc5c6\uc774 \ubcf4\ub294 \uc2dc\ub098\ub9ac\uc624\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc791\uc740 \uc0c1\uc5c5\uc6a9 \uac74\ubb3c\uc740 200A, 30\uac1c \uacf5\uac04 \ub85c\ub4dc \uc13c\ud130\ub85c \uc2dc\uc791\ud569\ub2c8\ub2e4. \uc870\uba85\uc6a9 10\uac1c \ud68c\ub85c, \ucf58\uc13c\ud2b8\uc6a9 8\uac1c \ud68c\ub85c, HVAC\uc6a9 5\uac1c \ud68c\ub85c, \uae30\ud0c0 \uc7a5\ube44\uc6a9 3\uac1c \ud68c\ub85c\ub85c \ud569\ub9ac\uc801\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4. 26\uac1c \ud68c\ub85c\uc774\ubbc0\ub85c \ubbf8\ub798 \ud655\uc7a5\uc744 \uc704\ud574 4\uac1c \uacf5\uac04\uc774 \ub0a8\uc2b5\ub2c8\ub2e4. \uc88b\uc8e0?<\/p>\n

    2\ub144 \ucc28: \uc784\ucc28\uc778\uc740 \uc11c\ubc84\uc2e4(\uc804\uc6a9 \ud68c\ub85c 2\uac1c), \uc5c5\uadf8\ub808\uc774\ub4dc\ub41c HVAC(\ud68c\ub85c 3\uac1c) \ubc0f EV \ucda9\uc804\uc18c(\ud68c\ub85c 1\uac1c)\ub97c \ucd94\uac00\ud558\ub824\uace0 \ud569\ub2c8\ub2e4. 6\uac1c\uc758 \uc0c8 \ud68c\ub85c\uc785\ub2c8\ub2e4. 4\uac1c\uc758 \uacf5\uac04\ub9cc \ub0a8\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n

    3\ub144 \ucc28: \ub2e4\ub978 \uc784\ucc28\uc778\uc774 \uc774\uc0ac\ud558\uc5ec \uc0c1\uc5c5\uc6a9 \uc8fc\ubc29 \uc7a5\ube44(\ud68c\ub85c 5\uac1c), \ub514\uba38 \ud328\ub110\uc774 \uc788\ub294 \uc5c5\uadf8\ub808\uc774\ub4dc\ub41c \uc870\uba85(\ud68c\ub85c 4\uac1c)\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n

    \uac8c\uc784 \uc624\ubc84. 2\ub144 \ub9cc\uc5d0 \uac00\ub4dd \ucc28\ub294 \ubb38\uc81c<\/strong> \uac00 \ub2e4\uc2dc \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n

    \uc774\uc81c \uc644\uc804\ud55c \ud328\ub110 \uad50\uccb4(\uc790\uc7ac \ube44\uc6a9 3,500\ub2ec\ub7ec)\uc640 \uc124\uce58 \uc778\uac74\ube44(\uc2dc\uac04\ub2f9 125-150\ub2ec\ub7ec\ub85c 8-12\uc2dc\uac04 = 1,000-1,800\ub2ec\ub7ec), \ubaa8\ub4e0 \uc784\ucc28\uc778\uacfc\uc758 \uc167\ub2e4\uc6b4 \ucc3d \uc870\uc815, \ud5c8\uac00 \ubc0f \uac80\uc0ac \ube44\uc6a9, \uc804\uae30 \uc6a9\ub7c9\uc744 \uae30\ub2e4\ub824\uc57c \ud558\ub294 \uc784\ucc28\uc778\uc744 \uc2e4\ub9dd\uc2dc\ud0a4\ub294 \ube44\uc6a9\uc744 \ucc45\uc815\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

    \u201c\uc608\uc0b0 \uce5c\ud654\uc801\uc778\u201d \ub85c\ub4dc \uc13c\ud130 \uacb0\uc815\uc758 \ucd1d \ube44\uc6a9: $5,000-7,000<\/strong> \ud655\uc7a5 \uc6a9\ub7c9\uc774 \uc788\ub294 \uc801\uc808\ud55c \ud06c\uae30\uc758 \ud328\ub110\ubcf4\ub4dc\uc5d0 \ub300\ud574 800-1,200\ub2ec\ub7ec\ub97c \ubbf8\ub9ac \uc9c0\ucd9c\ud558\ub294 \ub300\uc2e0 3\ub144 \uc774\ub0b4\uc5d0 \uad50\uccb4 \ube44\uc6a9\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n

    \uc804\ubb38\uac00 \ud301 3: 125% \uc131\uc7a5 \uaddc\uce59<\/strong> (NEC\uc5d0\ub294 \uc5c6\uc9c0\ub9cc \uc2e4\uc804\uc5d0\uc11c \uac80\uc99d\ub428): \ucd08\uae30 \ud68c\ub85c \uc218\ub97c \uacc4\uc0b0\ud558\uace0 1.25\ub97c \uacf1\ud55c \ub2e4\uc74c \ucd5c\uc18c\ud55c \uadf8\ub9cc\ud07c\uc758 \uacf5\uac04\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4. \uc608\uc0c1\ub418\ub294 \uc784\ucc28\uc778 \ud68c\uc804\uc728\uc774 \uc788\ub294 \uc0c1\uc5c5\uc6a9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uacbd\uc6b0 \ucd08\uae30 \ud68c\ub85c \uc218\uc758 1.5\ubc30\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc608, \ucc98\uc74c\uc5d0\ub294 \ube48 \uacf5\uac04\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\uac83\uc774 \uc694\uc810\uc785\ub2c8\ub2e4.<\/p><\/blockquote>\n

    5. \ub2e8\ub77d \uc815\uaca9 \ud604\uc2e4 \uc810\uac80<\/h3>\n

    \uc55e\uc11c 10kA \uae30\ubcf8 \ud568\uc815\uc5d0 \ub300\ud574 \ub2e4\ub8e8\uc5c8\uc9c0\ub9cc \uc65c \uc911\uc694\ud55c\uc9c0 \uad6c\uccb4\uc801\uc73c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

    NEC 110.24(A)\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \uc0b0\uc5c5 \ubc0f \uc0c1\uc5c5 \uc124\uce58(1\uac00\uad6c \ubc0f 2\uac00\uad6c \uc8fc\ud0dd \uc81c\uc678)\uc5d0\uc11c \ucd5c\ub300 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uace0\uc7a5 \uc804\ub958\ub97c \uacc4\uc0b0\ud558\uace0 \uc601\uad6c\uc801\uc73c\ub85c \ud45c\uc2dc<\/strong> \ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

    \uac80\uc0ac\uad00\uc740 \uc138 \uac00\uc9c0 \uc0ac\ud56d\uc744 \ud655\uc778\ud569\ub2c8\ub2e4.<\/p>\n

      \n
    1. \uace0\uc7a5 \uc804\ub958\uac00 \uc7a5\ube44\uc5d0 \ud45c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\uae4c? (\uadf8\ub807\uc9c0 \uc54a\uc740 \uacbd\uc6b0 \ud0dc\uadf8 1)<\/li>\n
    2. \ud328\ub110\ubcf4\ub4dc\uc758 \ub2e8\ub77d \uc815\uaca9\uc774 \ud45c\uc2dc\ub41c \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uace0\uc7a5 \uc804\ub958\ub97c \ucd08\uacfc\ud569\ub2c8\uae4c? (\uadf8\ub807\uc9c0 \uc54a\uc740 \uacbd\uc6b0 \ud0dc\uadf8 2)<\/li>\n
    3. \ub0b4\ubd80\uc758 \ubaa8\ub4e0 \ucc28\ub2e8\uae30\uc758 \ucc28\ub2e8 \uc815\uaca9\uc774 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uace0\uc7a5 \uc804\ub958 \uc774\uc0c1\uc785\ub2c8\uae4c? (\uadf8\ub807\uc9c0 \uc54a\uc740 \uacbd\uc6b0 \ud0dc\uadf8 3)<\/li>\n<\/ol>\n

      \uc77c\ubc18\uc801\uc778 10kA \ub610\ub294 22kA \uc815\uaca9\uc758 \ub85c\ub4dc \uc13c\ud130\ub294 \ub9ce\uc740 \uc0c1\uc5c5\uc6a9 \uac74\ubb3c\uc5d0\uc11c \uc774 \ud14c\uc2a4\ud2b8\uc5d0 \uc2e4\ud328\ud569\ub2c8\ub2e4. 1,500kVA \ubcc0\uc555\uae30\uc5d0\uc11c 50\ud53c\ud2b8 \ub5a8\uc5b4\uc9c4 3,000A \uc11c\ube44\uc2a4\ub294 \ubc30\uc804 \ud328\ub110\uc5d0\uc11c 35-50kA\uc758 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uace0\uc7a5 \uc804\ub958\ub97c \uc27d\uac8c \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 22kA \ub85c\ub4dc \uc13c\ud130\ub294 \ucf54\ub4dc \uc704\ubc18\uc774 \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n

      \uc0c1\uc5c5\uc6a9\uc73c\ub85c \uc9c0\uc815\ub41c \ud328\ub110\ubcf4\ub4dc\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uac74\ubb3c\uc758 \uc2e4\uc81c \uace0\uc7a5 \uc804\ub958 \uc218\uc900\uc5d0 \ub9de\ucdb0 42kA, 65kA \ub610\ub294 100kA \ub2e8\ub77d \uc815\uaca9\uc744 \uac16\uc2b5\ub2c8\ub2e4.<\/p>\n

      6. \ud658\uacbd \ubc0f \uc560\ud50c\ub9ac\ucf00\uc774\uc158: NEMA \ub4f1\uae09 \ubc0f \ud2b9\uc218 \uc870\uac74<\/h3>\n

      Load centers: NEMA Type 1 (indoor, dry locations) with occasional Type 3R (outdoor, weatherproof) options.<\/p>\n

      Panelboards: Available in all NEMA types including Type 3R, 4, 4X, 12 (industrial), and hazardous location ratings (Class I Div 1\/2, Class II, etc.).<\/p>\n

      If your application involves:<\/p>\n