{"product_id":"siemens-qj3m175h-circuit-breaker","title":"Siemens | QJ3M175H | Circuit Breaker | 175A | 3-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered by Siemens for demanding electrical systems, the QJ3M175H Circuit Breaker delivers trusted protection for 240V, three‑phase feeders. With a 175A rating and a 3‑pole configuration, this bolt‑on breaker is designed for retrofit, maintenance, and replacement projects where exact specifications matter and reliable tripping is critical.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCore specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage: \u003cstrong\u003e175 A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePoles: \u003cstrong\u003e3-Pole\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage: \u003cstrong\u003e240 V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eMounting: \u003cstrong\u003eBolt-On\u003c\/strong\u003e for secure, vibration‑resistant installation\u003c\/li\u003e \u003cli\u003ePart number: \u003cstrong\u003eQJ3M175H\u003c\/strong\u003e—the best reference for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat this means in practical terms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtection for heavy-duty 3‑phase circuits in commercial and light industrial panels, preventing damage from short circuits and overloads.\u003c\/li\u003e \u003cli\u003eA bolt‑on design that provides a solid, code‑compliant connection, reducing the risk of loose terminals and arcing over time.\u003c\/li\u003e \u003cli\u003ePrecise alignment with Siemens panel ecosystems, simplifying installation when upgrading or replacing existing protection devices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eRetrofits in commercial suites and small to mid‑size industrial facilities where a 175A, 3‑pole, 240V protection device is required.\u003c\/li\u003e \u003cli\u003eMaintenance and replacement scenarios where matching the exact Siemens part number ensures compatibility with existing bus connections and trip characteristics.\u003c\/li\u003e \u003cli\u003eNew installations in panels designed for bolt‑on breakers that demand robust, long‑lasting protection for critical feeders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy choose the QJ3M175H over others\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eExact Siemens specifications mean predictable performance, trusted trip curves, and straightforward cross‑reference using the part number.\u003c\/li\u003e \u003cli\u003eThe bolt‑on mounting delivers a more secure connection in environments with vibration or frequent panel access, enhancing long‑term reliability.\u003c\/li\u003e \u003cli\u003eSpecifically matched for 240V three‑phase systems, reducing the risk of misapplication that can occur with universal or non‑Siemens devices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInstallation and compatibility tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cem\u003econfirm fit and ratings\u003c\/em\u003e before ordering. The part number QJ3M175H is the clearest reference for panel compatibility.\u003c\/li\u003e \u003cli\u003eCheck your panel labeling to ensure it supports bolt‑on 3‑pole breakers and is rated for 240V feeders.\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque and installation procedures to ensure a secure connection and proper fault clearing.\u003c\/li\u003e \u003cli\u003eUse this breaker as part of a well‑documented protection scheme, aligning with your project’s electrical plan and safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eReady for upgrade or replacement, the Siemens QJ3M175H delivers dependable overcurrent protection for critical 240V three‑phase circuits. If you’re aligning exact specifications for a retrofit or maintenance project, this 175A, 3‑pole, bolt‑on solution from Siemens is purpose‑built to integrate smoothly with compatible panels and improve system reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427416625314,"sku":"QJ3M175H","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qj3m175h-circuit-breaker-175a-3-pole-240v-bolt-217.webp?v=1789720047","url":"https:\/\/www.ampstate.com\/products\/siemens-qj3m175h-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}