{"product_id":"fusebox-tpn-125a-4p-mains-switch","title":"FuseBox TPN 125A 4P Mains Switch","description":"\u003cp data-start=\"77\" data-end=\"486\"\u003eThe \u003cstrong data-start=\"81\" data-end=\"97\"\u003eCHINT IT1254\u003c\/strong\u003e is a heavy-duty \u003cstrong data-start=\"114\" data-end=\"163\"\u003e125A 4-pole main switch (switch disconnector)\u003c\/strong\u003e designed for safe isolation and control of \u003cstrong data-start=\"207\" data-end=\"289\"\u003ethree-phase low-voltage electrical distribution systems with neutral switching\u003c\/strong\u003e. It is widely used as an \u003cstrong data-start=\"315\" data-end=\"354\"\u003eincoming isolator (TPN main switch)\u003c\/strong\u003e in distribution boards, providing reliable manual disconnection of all live conductors for maintenance, safety, and system control.\u003c\/p\u003e\n\u003cp data-start=\"488\" data-end=\"937\"\u003eWith its \u003cstrong data-start=\"497\" data-end=\"554\"\u003e4-pole configuration (L1, L2, L3 + Neutral switching)\u003c\/strong\u003e, the IT1254 ensures complete isolation of the supply, making it suitable for installations where full disconnection of neutral is required for compliance or operational safety. It is commonly installed in \u003cstrong data-start=\"760\" data-end=\"835\"\u003ecommercial buildings, industrial panels, and three-phase consumer units\u003c\/strong\u003e as the primary isolating device before downstream protective equipment such as MCBs, RCBOs, or MCCBs.\u003c\/p\u003e\n\u003cp data-start=\"939\" data-end=\"1354\"\u003eThe device is designed for \u003cstrong data-start=\"966\" data-end=\"987\"\u003eDIN rail mounting\u003c\/strong\u003e, allowing easy integration into standard distribution boards. It is rated for \u003cstrong data-start=\"1066\" data-end=\"1097\"\u003eAC-22A utilization category\u003c\/strong\u003e, meaning it is suitable for switching mixed resistive and inductive loads commonly found in general power distribution systems. Its robust internal construction ensures reliable switching performance and long service life under normal operating conditions.\u003c\/p\u003e","brand":"BMS Electrical","offers":[{"title":"Default Title","offer_id":56992173851001,"sku":"IT1254","price":22.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/6388\/1337\/files\/fusebox-it1253n-125a-3p-main-switch-unswitched-neutral-main-switch-5955-1-p_x3bhk0uptxycceob.jpg?v=1779460701","url":"https:\/\/bmselectricalsupplies.com\/products\/fusebox-tpn-125a-4p-mains-switch","provider":"Zicam Electrical Supplies","version":"1.0","type":"link"}