{"id":4937,"date":"2026-11-04T09:38:31","date_gmt":"2026-11-04T01:38:31","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4937"},"modified":"2026-11-04T09:43:56","modified_gmt":"2026-11-04T01:43:56","slug":"3-pole-vs-4-pole-ats-neutral","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ja\/blog\/3-pole-vs-4-pole-ats-neutral\/","title":{"rendered":"3\u6975\u5bfe4\u6975ATS\uff1a\u3044\u3064\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u7dda\u3092\u5207\u308a\u66ff\u3048\u308b\u3079\u304d\u304b\uff1f"},"content":{"rendered":"<p><strong>\u77ed\u7b54\uff1a<\/strong> 3\u6975\u81ea\u52d5\u5207\u63db\u958b\u9589\u5668\uff08ATS\uff09\u306f\u3001\u8ca0\u8377\u306e\u4e2d\u6027\u7dda\u304c\u78ba\u5b9f\u306b\u63a5\u7d9a\u3055\u308c\u305f\u307e\u307e\u3067\u30013\u76f8\u5c0e\u4f53\u3092\u5207\u308a\u66ff\u3048\u307e\u3059\u30024\u6975ATS\u306f\u4e2d\u6027\u7dda\u3082\u5207\u308a\u66ff\u3048\u307e\u3059\u3002\u9069\u5207\u306a\u9078\u629e\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u63a5\u5730\u4e2d\u6027\u7dda\u63a5\u7d9a\u3001\u767a\u96fb\u6a5f\u304c\u72ec\u7acb\u3057\u305f\u96fb\u6e90\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3001\u4fdd\u8b77\u8a2d\u8a08\u3001\u304a\u3088\u3073\u9069\u7528\u3055\u308c\u308b\u5730\u57df\u306e\u898f\u5247\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u30024\u7dda\u5f0f\u8ca0\u8377\u304c\u5fc5\u305a\u3057\u3082\u4e2d\u6027\u7dda\u306e\u5207\u308a\u66ff\u3048\u3092\u5fc5\u8981\u3068\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/%E5%8C%A1%E4%BA%9A%E5%9B%BE%E7%89%87527-600x600.jpg\" alt=\"Kuangya KGQ2 automatic changeover switch product example\" width=\"600\" height=\"600\" loading=\"lazy\"><figcaption>Kuangya KGQ2\u81ea\u52d5\u5207\u63db\u958b\u9589\u5668\u3002\u4e2d\u6027\u7dda\u306e\u914d\u7f6e\u3092\u9078\u629e\u3059\u308b\u969b\u306f\u3001\u6b63\u78ba\u306a\u30e2\u30c7\u30eb\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/figcaption><\/figure>\n<h2>\u4e2d\u6027\u7dda\u306e\u6c7a\u5b9a\u304c\u91cd\u8981\u306a\u7406\u7531<\/h2>\n<p>\u516c\u5171\u96fb\u6e90\u304c\u5931\u308f\u308c\u305f\u5834\u5408\u3001ATS\u306f\u8ca0\u8377\u3092\u767a\u96fb\u6a5f\u306a\u3069\u306e\u4ee3\u66ff\u96fb\u6e90\u306b\u5207\u308a\u66ff\u3048\u307e\u3059\u3002\u4e2d\u6027\u7dda\u306e\u914d\u7f6e\u306f\u3001\u5404\u52d5\u4f5c\u30e2\u30fc\u30c9\u306b\u304a\u3051\u308b\u9084\u6d41\u96fb\u6d41\u3068\u5730\u7d61\u96fb\u6d41\u306e\u6d41\u308c\u65b9\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u4e0d\u9069\u5207\u306a\u914d\u7f6e\u306f\u3001\u4e26\u5217\u4e2d\u6027\u7dda\u7d4c\u8def\u3092\u4f5c\u6210\u3057\u305f\u308a\u3001\u5730\u7d61\u4fdd\u8b77\u3092\u640d\u306a\u3063\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u6c7a\u5b9a\u306f\u3001\u6975\u6570\u3060\u3051\u3067\u306a\u304f\u3001\u5b8c\u5168\u306a\u5358\u7dda\u7d50\u7dda\u56f3\u304b\u3089\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h2>3\u6975ATS\u306e\u6a5f\u80fd<\/h2>\n<p>3\u6975\u30c7\u30d0\u30a4\u30b9\u306fL1\u3001L2\u3001L3\u3092\u5207\u308a\u66ff\u3048\u307e\u3059\u3002\u56fa\u76f8\u4e2d\u6027\u7dda\u914d\u7f6e\u3067\u306f\u3001\u516c\u5171\u306e\u4e2d\u6027\u7dda\u3001\u767a\u96fb\u6a5f\u306e\u4e2d\u6027\u7dda\u3001\u304a\u3088\u3073\u8ca0\u8377\u306e\u4e2d\u6027\u7dda\u306f\u3001\u5207\u63db\u88c5\u7f6e\u3092\u4ecb\u3057\u3066\u63a5\u7d9a\u3055\u308c\u305f\u307e\u307e\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u4e2d\u6027\u7dda\u3068\u63a5\u5730\u7dda\u306e\u63a5\u7d9a\u3092\u4f7f\u7528\u3059\u308b\u767a\u96fb\u6a5f\u8a2d\u5099\u306b\u9069\u3057\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002 <em>\u306a\u3044<\/em> \u5206\u5c90\u7cfb\u3068\u3057\u3066\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u3002\u767a\u96fb\u6a5f\u306e\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u69cb\u6210\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u30022\u3064\u76ee\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u30fb\u30a2\u30fc\u30b9\u9593\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306f\u3001\u610f\u56f3\u3057\u306a\u3044\u4e26\u5217\u7d4c\u8def\u3092\u751f\u6210\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/p>\n<h2>4\u6975ATS\u306e\u6a5f\u80fd<\/h2>\n<p>4\u6975\u30c7\u30d0\u30a4\u30b9\u306fL1\u3001L2\u3001L3\u3001N\u3092\u5207\u308a\u66ff\u3048\u308b\u3002\u305d\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u6975\u306f\u3001\u8ca0\u8377\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3092\u9078\u629e\u3055\u308c\u305f\u30bd\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u3002\u3053\u306e\u69cb\u6210\u306f\u3001\u4ee3\u66ff\u30bd\u30fc\u30b9\u304c\u72ec\u81ea\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u30fb\u30a2\u30fc\u30b9\u9593\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3092\u6301\u3061\u3001\u5206\u5c90\u7cfb\u3068\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u4e00\u822c\u7684\u306b\u8003\u616e\u3055\u308c\u308b\u3002\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u63a5\u70b9\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u3068\u63a5\u5730\u8a2d\u8a08\u306f\u91cd\u8981\u3067\u3042\u308b\u3002\u300c4\u6975\u300d\u3060\u3051\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u5207\u308a\u66ff\u3048\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u8aac\u660e\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002\u4fdd\u8b77\u30a2\u30fc\u30b9\u306f\u9023\u7d9a\u3057\u305f\u307e\u307e\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u3001\u5207\u308a\u66ff\u3048\u3089\u308c\u305f\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3068\u3057\u3066\u4f7f\u7528\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002.<\/p>\n<h2>\u30af\u30a4\u30c3\u30af\u6bd4\u8f03<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u8a2d\u8a08\u4e0a\u306e\u8ab2\u984c<\/th>\n<th>3\u6975 \/ \u30bd\u30ea\u30c3\u30c9\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb<\/th>\n<th>4\u6975 \/ \u30b9\u30a4\u30c3\u30c1\u30c9\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8ee2\u9001\u3055\u308c\u308b\u5c0e\u4f53<\/td>\n<td>\u4e09\u76f8<\/td>\n<td>\u4e09\u76f8\u304a\u3088\u3073\u4e2d\u6027\u7dda<\/td>\n<\/tr>\n<tr>\n<td>\u8ca0\u8377\u5074\u4e2d\u6027\u7dda<\/td>\n<td>\u4e21\u65b9\u306e\u96fb\u6e90\u306e\u4e2d\u6027\u7dda\u306b\u63a5\u7d9a\u3055\u308c\u305f\u307e\u307e<\/td>\n<td>\u9078\u629e\u3055\u308c\u305f\u96fb\u6e90\u306e\u4e2d\u6027\u7dda\u306b\u63a5\u7d9a<\/td>\n<\/tr>\n<tr>\n<td>\u4e00\u822c\u7684\u306a\u8a2d\u8a08\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8<\/td>\n<td>\u4ee3\u66ff\u96fb\u6e90\u304c\u500b\u5225\u306b\u63a5\u5730\u3055\u308c\u3066\u3044\u306a\u3044\uff08\u975e\u5206\u96e2\u578b\uff09<\/td>\n<td>\u4ee3\u66ff\u96fb\u6e90\u304c\u500b\u5225\u306b\u63a5\u5730\u3055\u308c\u3066\u3044\u308b\uff08\u5206\u96e2\u578b\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u8981\u306a\u691c\u8a3c\u4e8b\u9805<\/td>\n<td>\u63a5\u5730\u3068\u4e26\u5217\u4e2d\u6027\u7dda\u7d4c\u8def<\/td>\n<td>\u4e2d\u6027\u7dda\u63a5\u89e6\u30b7\u30fc\u30b1\u30f3\u30b9\u3001\u63a5\u5730\u3001\u304a\u3088\u3073\u4fdd\u8b77\u5354\u8abf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u308c\u3089\u306f\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u3067\u3042\u308a\u3001\u73fe\u5730\u306e\u96fb\u6c17\u5de5\u4e8b\u898f\u5b9a\u3084\u73fe\u5834\u56fa\u6709\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30ec\u30d3\u30e5\u30fc\u306e\u4ee3\u308f\u308a\u306b\u306a\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h2>\u767a\u96fb\u6a5fATS\u306e\u9078\u5b9a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n<ol>\n<li>\u5358\u7dda\u7d50\u7dda\u56f3\u4e0a\u306b\u3001\u5546\u7528\u96fb\u6e90\u3001\u767a\u96fb\u6a5f\u3001ATS\u3001\u8ca0\u8377\u306e\u4e2d\u6027\u7dda\u3001\u304a\u3088\u3073\u4fdd\u8b77\u63a5\u5730\u5c0e\u4f53\u30921\u3064\u63cf\u753b\u3057\u307e\u3059\u3002.<\/li>\n<li>\u4e21\u65b9\u306e\u904b\u8ee2\u30e2\u30fc\u30c9\u306b\u304a\u3051\u308b\u3059\u3079\u3066\u306e\u4e2d\u6027\u7dda\u3068\u63a5\u5730\u9593\u306e\u63a5\u7d9a\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002.<\/li>\n<li>\u9069\u7528\u3055\u308c\u308b\u8a2d\u7f6e\u898f\u5247\u306e\u4e0b\u3067\u3001\u767a\u96fb\u6a5f\u304c\u72ec\u7acb\u3057\u3066\u63a5\u5730\u3055\u308c\u308b\u3053\u3068\u3092\u610f\u56f3\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<li>\u4e21\u65b9\u306e\u96fb\u6e90\u304c\u500b\u5225\u306b\u901a\u96fb\u3055\u308c\u3066\u3044\u308b\u72b6\u614b\u3067\u3001\u5730\u7d61\u304a\u3088\u3073\u6f0f\u96fb\u4fdd\u8b77\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n<li>ATS\u30e1\u30fc\u30ab\u30fc\u306e\u4e2d\u6027\u7dda\u6975\u914d\u7f6e\u3001\u63a5\u70b9\u30b7\u30fc\u30b1\u30f3\u30b9\u3001\u5b9a\u683c\u3001\u914d\u7dda\u56f3\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<li>\u53d6\u308a\u4ed8\u3051\u524d\u306b\u3001\u8cc7\u683c\u306e\u3042\u308b\u96fb\u6c17\u5c02\u9580\u5bb6\u304c\u5730\u57df\u306e\u898f\u5236\u306b\u7167\u3089\u3057\u3066\u8a2d\u8a08\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n<\/ol>\n<h2>\u3053\u308c\u304cKuangya\u8ee2\u9001\u30b9\u30a4\u30c3\u30c1\u306b\u3069\u306e\u3088\u3046\u306b\u9069\u7528\u3055\u308c\u308b\u304b<\/h2>\n<p>\u30af\u30a2\u30f3\u30cb\u30e3\u306e <a href=\"https:\/\/cnkuangya.com\/ja\/product\/kgq2-automatic-changeover-switch\/\">KGQ2\u81ea\u52d5\u5207\u66ff\u30b9\u30a4\u30c3\u30c1<\/a> \u306f3\u6975\u304a\u3088\u30734\u6975\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3067\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002\u6975\u69cb\u6210\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u63a5\u5730\u8a2d\u8a08\u304c\u78ba\u5b9a\u3057\u305f\u5f8c\u306b\u306e\u307f\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u5f8c\u3001\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u6b63\u78ba\u306a\u30e2\u30c7\u30eb\u306e\u914d\u7dda\u56f3\u3001\u5b9a\u683c\u3001\u304a\u3088\u3073\u4e2d\u6027\u7dda\u63a5\u70b9\u306e\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3088\u308a\u5e83\u7bc4\u306a\u3082\u306e\u3092\u6bd4\u8f03\u3067\u304d\u307e\u3059 <a href=\"https:\/\/cnkuangya.com\/ja\/automatic-transfer-switch\/\">Kuangya ATS\u30b7\u30ea\u30fc\u30ba<\/a> \u307e\u305f\u306f <a href=\"https:\/\/cnkuangya.com\/ja\/contact-us\/\">\u88fd\u54c1\u9078\u5b9a\u306e\u8b70\u8ad6\u306e\u305f\u3081\u306b\u5358\u7dda\u7d50\u7dda\u56f3\u3092\u304a\u9001\u308a\u304f\u3060\u3055\u3044<\/a>.<\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u3059\u3079\u3066\u306e\u4e09\u76f8\u56db\u7dda\u5f0f\u30b7\u30b9\u30c6\u30e0\u306b4\u6975ATS\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u3044\u3044\u3048\u3002\u4e2d\u6027\u7dda\u3092\u5207\u308a\u66ff\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u96fb\u6e90\u306e\u63a5\u5730\u304a\u3088\u3073\u4fdd\u8b77\u8a2d\u8a08\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002\u9069\u5207\u306a\u69cb\u6210\u3067\u3042\u308c\u3070\u3001\u4e2d\u6027\u7dda\u304c\u76f4\u7d50\u3055\u308c\u305fATS\u3092\u4ecb\u3057\u30664\u7dda\u5f0f\u8ca0\u8377\u306b\u96fb\u529b\u3092\u4f9b\u7d66\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002.<\/p>\n<h3>\u4fdd\u8b77\u63a5\u5730\u5c0e\u4f53\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u3044\u3044\u3048\u3002\u4fdd\u8b77\u63a5\u5730\u306e\u9023\u7d9a\u6027\u306f\u5b89\u5168\u30b7\u30b9\u30c6\u30e0\u306e\u4e00\u90e8\u3067\u3059\u3002\u4e2d\u6027\u7dda\u5207\u308a\u66ff\u3048\u6975\u306f\u3001\u4fdd\u8b77\u63a5\u5730\u6975\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h3>\u767a\u96fb\u6a5f\u306f\u5e38\u306b\u72ec\u7acb\u3057\u305f\u6d3e\u751f\u30b7\u30b9\u30c6\u30e0\uff08separately derived system\uff09\u3068\u306a\u308a\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u3044\u3044\u3048\u3002\u305d\u306e\u5206\u985e\u306f\u3001\u5207\u308a\u66ff\u3048\u6a5f\u5668\u3092\u4ecb\u3057\u3066\u4e2d\u6027\u7dda\u304c\u3069\u306e\u3088\u3046\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0\u304c\u3069\u306e\u3088\u3046\u306b\u63a5\u5730\u3055\u308c\u3066\u3044\u308b\u304b\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u3002\u8a2d\u5099\u5168\u4f53\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h2>\u6280\u8853\u8cc7\u6599<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.se.com\/us\/en\/faqs\/FAQ000220886\/\" rel=\"noopener\">\u30b7\u30e5\u30ca\u30a4\u30c0\u30fc\u30a8\u30ec\u30af\u30c8\u30ea\u30c3\u30af \/ ASCO\uff1a\u30c8\u30e9\u30f3\u30b9\u30d5\u30a1\u30fc\u30b9\u30a4\u30c3\u30c1\u306e\u4e2d\u6027\u7dda\u69cb\u6210<\/a> \u76f4\u7d50\u4e2d\u6027\u7dda\u3001\u5207\u308a\u66ff\u3048\u4e2d\u6027\u7dda\u3001\u304a\u3088\u3073\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u4e2d\u6027\u7dda\u306e\u69cb\u6210\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002.<\/li>\n<li><a href=\"https:\/\/www.se.com\/sg\/en\/download\/document\/ASC-DB-NCTS\/\" rel=\"noopener\">\u30b7\u30e5\u30ca\u30a4\u30c0\u30fc\u30a8\u30ec\u30af\u30c8\u30ea\u30c3\u30af \/ ASCO: \u30c8\u30e9\u30f3\u30b9\u30d5\u30a1\u30b9\u30a4\u30c3\u30c1\u306b\u304a\u3051\u308b\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u69cb\u6210<\/a> \u63a5\u5730\u5206\u96e2\u304c\u9078\u5b9a\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3059\u308b\u304b\u3092\u8ad6\u3058\u3066\u3044\u307e\u3059\u3002.<\/li>\n<li><a href=\"https:\/\/www.se.com\/us\/en\/work\/featured-articles\/when-to-separately-ground-backup-generator\/\" rel=\"noopener\">Schneider Electric: when to separately ground a backup generator<\/a> gives the grounding context.<\/li>\n<\/ul>\n<p><em>Engineering note:<\/em> This article is a selection guide, not an installation instruction. Follow the approved design, the exact device documentation and local electrical requirements.<\/p>","protected":false},"excerpt":{"rendered":"<p>Short answer: A three-pole automatic transfer switch (ATS) transfers the three phase conductors while the load neutral remains solidly connected. A four-pole ATS also transfers the neutral. The correct choice depends on the system\u2019s neutral-to-earth bonding, whether the generator is a separately derived source, protection design, and the applicable local rules. A four-wire load does not automatically require a switched neutral. Kuangya KGQ2 automatic changeover switch. Check the exact model documentation when selecting a neutral arrangement. Why the neutral decision matters When utility power fails, an ATS transfers a load to an alternate source such as a generator. The neutral arrangement determines how return current and ground-fault current flow in [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-4937","post","type-post","status-publish","format-standard","hentry","category-blog"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/4937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/comments?post=4937"}],"version-history":[{"count":2,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/4937\/revisions"}],"predecessor-version":[{"id":4940,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/4937\/revisions\/4940"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/media?parent=4937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/categories?post=4937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/tags?post=4937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}