{"product_id":"siemens-qj3b09000s01-circuit-breaker","title":"Siemens | QJ3B09000S01 | Circuit Breaker | 90A | 3-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens QJ3B09000S01 Circuit Breaker — a rugged, bolt-on protection solution designed for 240V, 3-pole systems. With a 90A rating across three poles, this breaker provides reliable shutdown protection for demanding panels in commercial and industrial settings. The bolt-on mounting delivers a secure, vibration-resistant connection that stands up to the rigors of real-world electrical environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 90A\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\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QJ3B09000S01\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this Siemens QJ3B09000S01 is a smart choice\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDesigned for \u003cem\u003emaintenance, retrofit, and replacement\u003c\/em\u003e projects where matching specs are essential, ensuring you don’t over- or under-spec the protection for your panel.\u003c\/li\u003e \u003cli\u003eThe \u003cem\u003ebolt-on design\u003c\/em\u003e provides a robust mechanical connection, minimizing the risk of loose contacts and enhancing reliability in challenging environments.\u003c\/li\u003e \u003cli\u003eDirect reference compatibility is centered on the \u003cem\u003epart number\u003c\/em\u003e — QJ3B09000S01 — making it the most precise guide for fit in Siemens panels that support the QJ3 bolt-on line.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, \u003cstrong\u003econfirm fit and ratings\u003c\/strong\u003e against your panel’s requirements. The part number is the best reference for compatibility, and the bolt-on configuration is intended for Siemens panels designed to accept this style of breaker. If you’re upgrading from a different setup, plan for a straightforward, secure removal of the old unit and a clean bolt-on mounting of the QJ3B09000S01 to restore protected operation quickly.\u003c\/p\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRoutine \u003cstrong\u003emaintenance\u003c\/strong\u003e on 3-phase 240V distribution systems where 90A circuits require reliable interruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofits\u003c\/strong\u003e of older installations needing to replace worn or obsolete breakers with a modern Siemens bolt-on option.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEmergency replacements\u003c\/strong\u003e in service cabinets where downtime must be minimized and precise amperage matching is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen you need a dependable, correctly rated bolt-on circuit breaker for 240V, 3-pole applications, the Siemens QJ3B09000S01 delivers predictable protection and fast, secure installation. Add it to your panel and restore circuit integrity with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427420033186,"sku":"QJ3B09000S01","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qj3b09000s01-circuit-breaker-90a-3-pole-240v-bolt-759.webp?v=1789720795","url":"https:\/\/www.ampstate.com\/products\/siemens-qj3b09000s01-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}