{"product_id":"siemens-jxd23b400l-400a-240v-3-pole-circuit-breaker","title":"Siemens JXD23B400L - 400 A, 240 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens JXD23B400L is a 400A, 240V, three-pole molded case circuit breaker crafted to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for real-world electrical environments, this unit keeps distribution safe and reliable across demanding loads.\u003c\/p\u003e \u003cp\u003eIts compact molded case design maximizes panel space, making it easier to fit high-capacity protection without sacrificing room for other circuits. The thermal-magnetic trip unit provides stable, repeatable protection performance, delivering precise response to both overloads and short circuits while minimizing nuisance trips.\u003c\/p\u003e \u003cp\u003eKey advantages at a glance:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003e400A, 240V, 3-pole\u003c\/b\u003e — ideal for 3-phase feeders and high-load branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompact molded-case construction\u003c\/b\u003e — efficient use of panel space and straightforward integration into existing installations.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThermal-magnetic trip\u003c\/b\u003e — reliable protection with predictable trip behavior across varying loads and conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOEM-compatible\u003c\/b\u003e — designed to pair seamlessly with matching Siemens load centers and panelboards for cohesive protection schemes.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVersatile applications\u003c\/b\u003e — suitable for residential, commercial, and light industrial environments where dependable overcurrent protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTechnical snapshot:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eManufacturer:\u003c\/b\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart number:\u003c\/b\u003e JXD23B400L\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eAmperage rating:\u003c\/b\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage rating:\u003c\/b\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading a panelboard, replacing a legacy unit, or deploying a new installation, the JXD23B400L from Siemens delivers robust protection with space-conscious design. It’s a practical, reliable choice for protecting electrical infrastructure and keeping systems running smoothly with fewer interruptions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349815709858,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_25e6356a-9472-42c6-8bd7-70c804e3a8c9.png?v=1764157651","url":"https:\/\/www.ampstate.com\/products\/siemens-jxd23b400l-400a-240v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}