{"product_id":"siemens-hed42b100l-100a-480v-2-pole-bolt-on-circuit-breaker","title":"Siemens HED42B100L - 100 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HED42B100L is a 100 A, 480 V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection for panelboards and load centers. Built for real-world electrical rooms, it combines rugged mounting with precise protection to keep critical circuits safe and running smoothly.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection that stays locked in place even in busy equipment rooms or near heavy machinery, reducing the risk of loose connections over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection for both overloads and short circuits, with fast, predictable trips that help protect wiring and downstream devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible installation\u003c\/strong\u003e designed to pair with matching Siemens load centers and panelboards, ensuring seamless integration, consistent trip characteristics, and easier maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple sectors\u003c\/strong\u003e suitable for residential, commercial, and light industrial applications where reliable 100 A protection at 480 V is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\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: HED42B100L\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: 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e: 2\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\u003ePractical use cases\u003c\/h2\u003e\n\u003cp\u003eIn a commercial or light industrial panel, the Siemens HED42B100L protects 480 V branch circuits feeding critical equipment such as HVAC drives, server room power feeds, or utility\/service panels. Its bolt-on design makes retrofits and upgrades straightforward in existing Siemens-based installations, while maintaining reliable protection and clean, vibration-free bus connections.\u003c\/p\u003e \u003ch2\u003eWho benefits\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eElectrical contractors and facility engineers upgrading Siemens panelboards and load centers.\u003c\/li\u003e \u003cli\u003eMaintenance teams that need repeatable, predictable protection with minimal nuisance trips.\u003c\/li\u003e \u003cli\u003eSites requiring robust, code-compliant 480 V protection for commercial and light industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor reliability and compatibility in Siemens-based electrical systems, the HED42B100L from AmpState delivers a purpose-built solution that aligns with your panelboard protection strategy. It’s engineered to protect your circuits where it matters most, visit AmpState for availability and order details.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349801095330,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_9aecb323-2679-4086-8e96-0ad050ada3ae.png?v=1764157196","url":"https:\/\/www.ampstate.com\/products\/siemens-hed42b100l-100a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}