{"product_id":"siemens-qj3b150l-circuit-breaker","title":"Siemens | QJ3B150L | Circuit Breaker | 150A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens \u003cstrong\u003eQJ3B150L\u003c\/strong\u003e circuit breaker delivers reliable protection in a \u003cstrong\u003e150 A\u003c\/strong\u003e, \u003cstrong\u003e3-Pole\u003c\/strong\u003e configuration for \u003cstrong\u003e240V\u003c\/strong\u003e three-phase systems. Designed for maintenance, retrofit, and replacement projects, this unit ensures your panel stays within spec and your critical loads remain safeguarded. Remember: the part number is the most dependable reference for compatibility, so verify against your panel labeling before ordering.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 3-pole, suitable for 3-phase networks\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this Siemens 150A, 3-Pole, 240V breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePrecisely matched to Siemens panel boards and 3-phase distribution where a 150‑amp protection device is required\u003c\/li\u003e \u003cli\u003eStandard Siemens form factor enables straightforward swap-in replacement in compatible enclosures, minimizing downtime\u003c\/li\u003e \u003cli\u003eProven reliability from Siemens engineering, delivering consistent over-current protection for demanding electrical environments\u003c\/li\u003e \u003cli\u003eClear compatibility reference: use the \u003cstrong\u003eQJ3B150L\u003c\/strong\u003e part number to confirm exact fit with your panel model and labeling\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: replace aging or faulty breakers to restore full protection and restore service quickly\u003c\/li\u003e \u003cli\u003eRetrofit: upgrade existing panels to a Siemens 150 A, 3‑pole 240V device for consistent protection and part standardization\u003c\/li\u003e \u003cli\u003eReplacement: restore protective zoning in commercial or industrial panels that operate on 240V three-phase power\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow to verify compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, confirm fit and ratings align with your panel; the \u003cstrong\u003eQJ3B150L\u003c\/strong\u003e part number is the most reliable reference\u003c\/li\u003e \u003cli\u003eCheck your panel’s model and labeling to ensure it accepts a 3‑pole, 150 A, 240 V device\u003c\/li\u003e \u003cli\u003eEnsure the enclosure wiring and bus arrangement match the breaker style to guarantee proper installation and protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor projects requiring robust, dependable protection in a three-phase 240V system, the Siemens \u003cstrong\u003eQJ3B150L\u003c\/strong\u003e circuit breaker provides precise amperage, reliable performance, and a straightforward path to compatibility—delivering peace of mind for maintenance crews, facilities engineers, and electrical contractors alike.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427418591394,"sku":"QJ3B150L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/siemens-qj3b150l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}