{"product_id":"siemens-hed43b100l-100a-480v-3-pole-bolt-on-circuit-breaker","title":"Siemens HED43B100L - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HED43B100L is a 100A, 480V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for rigorous commercial and light industrial environments, this device ensures your three-phase distribution stays safe, stable, and easy to maintain.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection that stays tight through equipment start-ups, heavy loads, and ongoing cycling.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection: the thermal element handles sustained overloads while the magnetic element responds instantly to short circuits, reducing the risk of equipment damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is designed to slot into matching Siemens load centers and panelboards, enabling straightforward replacements and consistent protection coordination across your system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole, 480V protection\u003c\/strong\u003e ideal for residential, commercial, and light industrial installations that rely on robust 3-phase distribution and higher voltage applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBranch circuit protection\u003c\/strong\u003e rated at 100A to safeguard feeders, downstream devices, and control circuits with reliable interruption performance when faults occur.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical scenarios and benefits\u003c\/h3\u003e\n\u003cp\u003eUse the HED43B100L to protect three-phase feeders in commercial office buildings, light manufacturing floors, or HVAC motor circuits where reliable interruption and quick fault clearing are critical. Its bolt-on design makes it a solid choice for panel upgrades or replacements in Siemens-based systems, helping maintain consistent trip curves and predictable operating behavior across the distribution network.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage rating: 100 A\u003c\/li\u003e \u003cli\u003eVoltage rating: 480 V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\u003c\/li\u003e \u003cli\u003eMounting style: Bolt-on\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Siemens HED43B100L means investing in a durable, purpose-built protection device that harmonizes with your Siemens infrastructure, minimizes downtime, and provides precise, reliable performance across a range of commercial and light industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349801980066,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hed43b100l-100-a-480-v-3-pole-bolt-on-circuit-breaker-143.webp?v=1788729993","url":"https:\/\/www.ampstate.com\/products\/siemens-hed43b100l-100a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}