{"product_id":"jxd63b400-siemens-400a-3pole-600v-bolt-on-mccb","title":"Siemens - JXD63B400 400A 3-Pole 600V Bolt-On Molded Case Circuit Breaker","description":"\u003cp\u003eThe \u003cstrong\u003eSiemens JXD63B400\u003c\/strong\u003e is a 3-pole, 400-amp thermal magnetic molded case circuit breaker (MCCB) rated for 600VAC with bolt-on mounting. Engineered for heavy industrial and commercial three-phase power distribution, this JXD-frame breaker delivers high-capacity overload and short-circuit protection for large feeder and main circuits. The bolt-on design provides a secure, vibration-resistant installation in compatible Siemens panelboards and switchboards.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eJXD63B400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage Rating\u003c\/td\u003e\n\u003ctd\u003e400A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e600VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Poles\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Type\u003c\/td\u003e\n\u003ctd\u003eThermal Magnetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eBolt-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterrupting Rating\u003c\/td\u003e\n\u003ctd\u003e65kA @ 240V \/ 35kA @ 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eUL 489 Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Series\u003c\/td\u003e\n\u003ctd\u003eJXD6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBolt-on design for secure installation in Siemens JXD-frame compatible panelboards\u003c\/li\u003e\n\u003cli\u003eThermal magnetic trip for reliable overload and instantaneous short-circuit protection\u003c\/li\u003e\n\u003cli\u003e400A high-capacity rating for main and large feeder circuit protection\u003c\/li\u003e\n\u003cli\u003e3-pole configuration for three-phase 600V industrial distribution systems\u003c\/li\u003e\n\u003cli\u003eHigh interrupting capacity for demanding industrial environments\u003c\/li\u003e\n\u003cli\u003eUL 489 Listed, NEC compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e400A main and large feeder circuit protection in industrial 600V panelboards\u003c\/li\u003e\n\u003cli\u003eHeavy manufacturing plant main distribution protection\u003c\/li\u003e\n\u003cli\u003eMotor control center (MCC) main incoming feeder protection\u003c\/li\u003e\n\u003cli\u003eIndustrial switchboard main circuit breaker applications\u003c\/li\u003e\n\u003cli\u003eUtility and process industry high-capacity power distribution\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat is the Siemens JXD63B400?\u003c\/h3\u003e\u003cp\u003eThe Siemens JXD63B400 is a 400-amp, 3-pole, 600V thermal magnetic bolt-on MCCB used as a main or large feeder circuit breaker in heavy industrial and commercial three-phase 600V electrical distribution systems.\u003c\/p\u003e\u003ch3\u003eWhat panelboards are compatible with the JXD63B400?\u003c\/h3\u003e\u003cp\u003eThe JXD63B400 uses bolt-on mounting and is compatible with Siemens JXD6-frame panelboards and switchboards. Always verify frame and bus compatibility with your specific equipment before installation.\u003c\/p\u003e\u003ch3\u003eIs the JXD63B400 in stock?\u003c\/h3\u003e\u003cp\u003eYes. Alpha Brokers \u0026amp; Controls stocks the Siemens JXD63B400 in new condition and ships quickly. Contact us for current pricing and availability.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":48395582210296,"sku":"JXD63B400-N","price":534.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/shopping-scaled.jpg?v=1778784946","url":"https:\/\/alphabreakersandcontrols.com\/products\/jxd63b400-siemens-400a-3pole-600v-bolt-on-mccb","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}