{"product_id":"siemens-sjl63b400g","title":"Siemens SJL63B400G 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens SJL63B400G, a rugged 400 A, 3-pole circuit breaker designed for demanding three‑phase electrical distributions. With a 600 V rating and the part number SJL63B400G, this device delivers reliable protection for large commercial, industrial, and multi‑unit installations where uptime and safety matter most.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e SJL63B400G\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cp\u003eThe SJL63B400G is built to handle substantial three‑phase loads while delivering precise, dependable interruption when faults occur. Its three‑pole design consolidates protection for all phases in a single device, simplifying panel layouts and reducing wiring complexity. This Siemens circuit breaker is engineered to meet rigorous electrical standards, helping you maintain safe operation in demanding environments.\u003c\/p\u003e \u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMain service disconnects in commercial or industrial panels that require protection for three‑phase feeders up to 400 A\u003c\/li\u003e \u003cli\u003eProtection for large branch circuits and machinery in manufacturing facilities\u003c\/li\u003e \u003cli\u003eUpgrades or replacements in Siemens SJL‑series panels where a 400 A, 3‑pole solution is needed\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePerformance and protection you can rely on\u003c\/h2\u003e\n\u003cp\u003eDesigned for stability under heavy loads, the SJL63B400G provides robust protection against overloads and faults in three‑phase systems up to 600 V. Its solid construction supports long service life in environments where electrical reliability is essential. By consolidating tri‑phase protection into one device, it helps reduce panel clutter and simplifies maintenance checks.\u003c\/p\u003e \u003ch2\u003eInstallation and safety considerations\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eInstall by a qualified electrician following local electrical codes and Siemens installation guidelines\u003c\/li\u003e \u003cli\u003eVerify panel compatibility with SJL‑series breakers to ensure proper fit and safe operation\u003c\/li\u003e \u003cli\u003eRespect torque specifications and connection practices to maintain reliable electrical contact\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose Siemens for your high‑current protection\u003c\/h2\u003e\n\u003cpsiemens brings a long commitment to dependable power protection. the sjl63b400g combines high current capability with precise predictable interruption in compact three package. when your system depends on preventing downtime and protecting critical equipment this v circuit breaker offers clear practical solution. investment safeguards not just wiring but continuous operation of facility.\u003e\u003c\/psiemens\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423245291682,"sku":"SJL63B400G","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-sjl63b400g","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}