{"product_id":"siemens-hed43b100-100a-480v-3-pole-bolt-on-circuit-breaker","title":"Siemens HED43B100 - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HED43B100 delivers reliable 100A, 480V protection in a 3-pole bolt-on molded case circuit breaker designed for panelboards and load centers. Built to safeguard branch circuits against overcurrent and short circuits, it’s a trusted choice for demanding electrical enclosures where stability matters.\u003c\/p\u003e \u003cp\u003eKey advantages that set the HED43B100 apart:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, maintaining a dependable electrical path even in environments with movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying fault currents, minimizing nuisance trips while ensuring fast interruption when faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design for 3-phase systems\u003c\/strong\u003e optimized for 480V applications, making it ideal for commercial and light industrial power distribution.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to work with matching Siemens OEM load centers and panelboards for a seamless upgrade or replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where reliable branch circuit protection is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this matters for your electrical system\u003c\/h2\u003e\n\u003cp\u003eWhen protecting motor loads, lighting, or other critical equipment, a high-quality protective device like the HED43B100 ensures you get predictable tripping behavior tied to actual fault conditions. The combination of a robust bolt-on mount and a dependable thermal-magnetic trip means fewer unexpected trips and shorter downtime due to protective failures. It’s the smart choice for installers who demand reliability, compatibility, and performance in one package.\u003c\/p\u003e \u003ch2\u003eTechnical at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HED43B100\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 100A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use scenarios\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eProtection of 3-phase circuits in commercial panelboards and light industrial distribution systems rated for 480V.\u003c\/li\u003e \u003cli\u003eReplacement or upgrade within Siemens-compatible load centers to maintain consistent protection characteristics.\u003c\/li\u003e \u003cli\u003eProtection for equipment circuits in office buildings, retail spaces, and small manufacturing environments where reliable trip performance matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Siemens HED43B100, you’re choosing a purpose-built protector that aligns with Siemens panel ecosystems, delivering precise protection, durable mounting, and compatibility across installations that demand dependable 3-phase reliability at 480V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349801914530,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hed43b100-100-a-480-v-3-pole-bolt-on-circuit-breaker-722.webp?v=1788729984","url":"https:\/\/www.ampstate.com\/products\/siemens-hed43b100-100a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}