{"product_id":"siemens-hqj3b100ha02-circuit-breaker","title":"Siemens | HQJ3B100HA02 | Circuit Breaker | 100A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens \u003cstrong\u003eHQJ3B100HA02\u003c\/strong\u003e circuit breaker — a purpose-built protection device designed for 3‑phase, 240V systems. With a 100A rating and 3 poles, this unit is tailored for maintenance, retrofit, and replacement projects where exact compatibility matters. When you need a dependable, direct reference part for Siemens panelboards and distribution gear, the HQJ3B100HA02 is the clear choice.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 100 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\u003ePart number:\u003c\/strong\u003e HQJ3B100HA02\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDirect compatibility reference: the HQJ3B100HA02 part number is the best indicator for matching breakers to compatible Siemens panels and distribution equipment.\u003c\/li\u003e \u003cli\u003eDesigned for reliability in real-world conditions—ideal for ongoing maintenance cycles, panel upgrades, and equipment retrofits.\u003c\/li\u003e \u003cli\u003eThree-pole protection for balanced 3‑phase loads, ensuring synchronized shutoff and consistent trip behavior across all phases.\u003c\/li\u003e \u003cli\u003eClear, fixed 240V rating makes it especially suitable for commercial and light industrial applications where 3‑phase 240V service is standard.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance or retrofit projects where a precise 3‑pole, 240V breaker is required in Siemens systems.\u003c\/li\u003e \u003cli\u003eReplacement in existing Siemens panelboards that specify HQJ3B100HA02 for continued protection of 3‑phase equipment.\u003c\/li\u003e \u003cli\u003eNew installations in environments powered by 3‑phase 240V circuits that demand a robust, compatible Siemens solution.\u003c\/li\u003e \u003cli\u003eElectrical room upgrades in commercial spaces, manufacturing floors, or data\/comms centers using Siemens gear.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings before ordering. The HQJ3B100HA02 is the best reference for compatibility with your equipment.\u003c\/li\u003e \u003cli\u003eCheck that your panel or distribution gear supports a 3‑pole 240V breaker of this rating to ensure proper wiring and safe operation.\u003c\/li\u003e \u003cli\u003eRefer to your Siemens documentation to verify that this exact part number is listed for your panel model and bus configuration.\u003c\/li\u003e \u003cli\u003eDuring installation, follow standard electrical safety practices and torque specs to ensure a secure, reliable connection across all three poles.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor professionals maintaining Siemens electrical systems, the \u003cstrong\u003eHQJ3B100HA02\u003c\/strong\u003e offers a precise, dependable solution that aligns with your panel’s specifications, minimizes downtime, and helps maintain safe, code-compliant operation of 3‑phase equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427070529698,"sku":"HQJ3B100HA02","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/siemens-hqj3b100ha02-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}