{"product_id":"siemens-qjh23b175l-circuit-breaker","title":"Siemens | QJH23B175L | Circuit Breaker | 175A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens QJH23B175L\u003c\/strong\u003e is a rugged 175 Amp, 3‑Pole, 240V circuit breaker designed to protect three‑phase electrical systems with precision. Built for maintenance, retrofit, and replacement projects, this unit delivers reliable overcurrent protection where Siemens panel architectures require exact part matching.\u003c\/p\u003e \u003ch3\u003eWhy this Siemens QJH23B175L matters in your electrical setup\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑phase protection at 240V:\u003c\/strong\u003e Ideal for commercial and light industrial panelboards handling three‑phase loads, motors, and feeders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh‑capacity amperage:\u003c\/strong\u003e 175A rating supports substantial feeder protection and circuit loads typical of mid‑sized systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect reference part number:\u003c\/strong\u003e Use QJH23B175L as the primary compatibility reference to ensure correct fit in compatible Siemens configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile replacement option:\u003c\/strong\u003e A reliable choice when upgrading or replacing aging breakers that match the same specs and form factor.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 175 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 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Maintenance, retrofit, and replacement in compatible Siemens panels\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eUse this breaker to safeguard three‑phase feeders in commercial electrical rooms, manufacturing lines, or HVAC motor circuits where a 175A, 240V protection device is required. It’s well suited for panel retrofits where legacy breakers are being replaced with a Siemens equivalent that matches the original ratings and form factor.\u003c\/p\u003e \u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings for your specific panel. The part number QJH23B175L is the most reliable reference for compatibility. If in doubt, consult your panel’s documentation or a qualified electrician to verify that this 3‑pole, 240V unit aligns with your Siemens configuration and three‑phase load requirements.\u003c\/p\u003e \u003ch3\u003ePractical tips for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMatch the breaker to the panel’s catalog and the existing conductors’ ampacity to ensure safe, code‑compliant protection.\u003c\/li\u003e \u003cli\u003eWhen replacing an old breaker, inspect wiring terminations and torque requirements to maintain a solid, secure connection.\u003c\/li\u003e \u003cli\u003eStore and handle the breaker in a clean, dry environment to preserve its trip mechanism and terminals until installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427471675554,"sku":"QJH23B175L","price":3360.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qjh23b175l-circuit-breaker-175a-3-pole-240v-920.webp?v=1789727564","url":"https:\/\/www.ampstate.com\/products\/siemens-qjh23b175l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}