{"product_id":"siemens-ed43b100-100a-480v-3-pole-bolt-on-circuit-breaker","title":"Siemens ED43B100 - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens ED43B100 is a robust \u003cstrong\u003e100 A, 480 V\u003c\/strong\u003e \u003cstrong\u003e3-pole bolt-on molded case circuit breaker\u003c\/strong\u003e designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for real-world electrical environments, this unit offers a compact, durable solution for commercial, residential, and light industrial installations.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e provides a \u003cstrong\u003erigid, vibration-resistant bus connection\u003c\/strong\u003e—ensuring consistent electrical contact and reliable performance even in rooms with heavy equipment or dynamic electrical loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining overload sensing (thermal) with fast short-circuit clearing (magnetic), reducing nuisance trips while safeguarding the circuit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e supports \u003cstrong\u003ethree-phase systems\u003c\/strong\u003e, making it ideal for commercial and light industrial panels that run motors, HVAC gear, and distributed loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panel compatibility\u003c\/strong\u003e is designed to work in \u003cem\u003ematching Siemens OEM load centers and panelboards\u003c\/em\u003e, ensuring consistent fit, trip curves, and easier replacement during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for \u003cstrong\u003eresidential, commercial, and light industrial\u003c\/strong\u003e environments where reliable protection and quick fault isolation are critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: \u003cstrong\u003eED43B100\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eType: \u003cstrong\u003eThermal-magnetic molded case circuit breaker\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eAmperage Rating: \u003cstrong\u003e100 A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage Rating: \u003cstrong\u003e480 V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eNumber of Poles: \u003cstrong\u003e3\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eMounting Style: \u003cstrong\u003eBolt-on\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eApplication: \u003cstrong\u003eBranch circuit overcurrent and short-circuit protection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose the ED43B100? It’s designed for teams that demand \u003cstrong\u003econsistent protection under varying load conditions\u003c\/strong\u003e and straightforward installation in panel assemblies. The bolt-on design simplifies mounting in service panels and minimizes vibration-induced wear, while the thermal-magnetic protection strategy provides reliable operation across temperature ranges and fault scenarios. Whether you’re upgrading an old panel, consolidating distribution for a new build, or stocking spare parts for service crews, this 3-pole Siemens breaker helps keep critical circuits safe and accessible.\u003c\/p\u003e \u003cp\u003eUse cases include distributing power to commercial equipment rooms, protecting motor circuits in HVAC and pumping systems, and serving as a reliable supply feed for multi-branch load centers. With its \u003cstrong\u003e100 A rating\u003c\/strong\u003e and \u003cstrong\u003ethree-phase compatibility\u003c\/strong\u003e, the ED43B100 is a precise, long-term solution for maintaining system integrity in everyday electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349790249122,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ed43b100-100-a-480-v-3-pole-bolt-on-circuit-breaker-379.webp?v=1788727768","url":"https:\/\/www.ampstate.com\/products\/siemens-ed43b100-100a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}