{"product_id":"siemens-he43b100-circuit-breaker","title":"Siemens | HE43B100 | Circuit Breaker | 100A | 3-Pole | 480V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet Siemens HE43B100, a 100A, three-pole bolt-on circuit breaker crafted for robust protection in 480V three-phase systems. This unit is designed for maintenance, retrofit, and replacement projects, ensuring Siemens-compatible panels stay protected, compliant, and ready for operation.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 100A — precise protection for crucial branch circuits in demanding industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole — comprehensive protection across all three phases to maintain balanced system performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480V — suited for high-voltage, three-phase applications typical in manufacturing, facilities, and heavy equipment setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On — straightforward field installation with reliable mechanical retention, minimizing panel downtime during replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e HE43B100 — the best compatibility reference to ensure a proper fit in Siemens panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal use cases:\u003c\/strong\u003e Maintenance, retrofit, and replacement where exact specifications must be met for safe, compliant operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters: matching amperage, voltage, pole configuration, and mounting method is essential for correct trip coordination, equipment protection, and panel integrity. The HE43B100 is engineered to slot into Siemens frames that accept bolt-on, three-pole breakers, delivering predictable performance and straightforward serviceability.\u003c\/p\u003e \u003cp\u003ePractical guidance for choosing and installing:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit using the part number HE43B100 as your primary reference before ordering.\u003c\/li\u003e \u003cli\u003eVerify your panel’s rating and ensure it accepts bolt-on, 3-pole 480V breakers at 100A for proper coordination and safety.\u003c\/li\u003e \u003cli\u003eDuring installation, power down the system and follow standard lockout\/tagout procedures; handle the breaker carefully to protect the trip mechanism and mounting points.\u003c\/li\u003e \u003cli\u003eFor retrofit projects, check bus configuration and mounting frame compatibility to ensure a clean, seamless replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Siemens HE43B100 means lean downtime and reliable protection for critical equipment, backed by Siemens’ trusted engineering. It’s a thoughtful, exact-fit solution for industrial electrical systems that demand precise specs and dependable performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424393941154,"sku":"HE43B100","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-he43b100-circuit-breaker-100a-3-pole-480v-bolt-142.webp?v=1789350999","url":"https:\/\/www.ampstate.com\/products\/siemens-he43b100-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}