{"product_id":"siemens-qj23b175hl-circuit-breaker","title":"Siemens | QJ23B175HL | Circuit Breaker | 175A | 3-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens QJ23B175HL circuit breaker—a purpose-built, high-current 3-pole unit designed for demanding 240V, 3-phase applications. With a 175A rating, this bolt-on breaker delivers reliable protection for heavy-duty circuits, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specs matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e175 A amperage\u003c\/strong\u003e provides robust overcurrent protection for high-demand feeders, minimizing the risk of equipment damage and unexpected outages.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-Pole design\u003c\/strong\u003e ensures true 3-phase protection and helps maintain power quality across motors, pumps, and conveyors by reducing phase imbalances.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e240V operation\u003c\/strong\u003e aligns with common industrial and commercial electrical systems, offering compatible performance for standard 3-phase layouts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting\u003c\/strong\u003e delivers a secure mechanical connection and straightforward retrofitting or replacement in compatible Siemens panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise compatibility reference\u003c\/strong\u003e centered on the part number \u003cem\u003eQJ23B175HL\u003c\/em\u003e—use this as the definitive check when verifying fit with your panel, bus configuration, and protection scheme.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this Siemens QJ series breaker stands out: it’s built for durability in busy environments, with a design that supports quick service and dependable operation in continuous-duty applications. The bolt-on configuration helps ensure a solid bus connection and repeatable protection characteristics, which is particularly valuable in retrofit scenarios where panel layouts are fixed but protection needs evolve.\u003c\/p\u003e \u003cp\u003eIdeal use cases and practical guidance:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cstrongretrofits:\u003e Swap in the QJ23B175HL to preserve protection coordination in existing Siemens panels without reconfiguring bus bars or trip settings.\u003c\/strongretrofits:\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongnew installations in systems:\u003e Use for 240V feeders powering motors, fans, and industrial equipment where reliable interruption protection is critical.\u003c\/strongnew\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongmaintenance planning:\u003e Keep on hand a spare with the exact amperage, pole count, and voltage to minimize downtime during scheduled service windows.\u003c\/strongmaintenance\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eImportant note: always confirm fit and ratings before purchasing. The QJ23B175HL part number is your best reference for compatibility, and ensure your panel supports bolt-on devices and the corresponding bus geometry for a secure, code-compliant installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427472429218,"sku":"QJ23B175HL","price":2918.0,"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-qj23b175hl-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}