{"product_id":"siemens-ed43b045-45a-480v-3-pole-bolt-on-circuit-breaker","title":"Siemens ED43B045 - 45 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens ED43B045 — a 45A, 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. This compact, robust unit is built to safeguard 3-phase electrical systems with precision and reliability.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey advantages that matter in the real world\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, reducing looseness and improving long-term reliability in panels subject to vibration or movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying loads and temperatures — balancing quick response to faults with resistance to nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatibility\u003c\/strong\u003e is designed to pair with matching Siemens load centers and panelboards, streamlining retrofits and ensuring consistent protection throughout your system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suited for residential, commercial, and light industrial environments requiring dependable 3-pole 480V protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: ED43B045\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 45A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 480V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho should consider the Siemens ED43B045?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eTechnicians upgrading or expanding 3-phase, 480V panelboards in commercial or light industrial facilities.\u003c\/li\u003e \u003cli\u003eSystems where vibration or mechanical movement is a concern, and a secure bolt-on connection can prevent contact loosening.\u003c\/li\u003e \u003cli\u003eInstallers seeking reliable, OEM-compatible protection that aligns with Siemens panelboard architectures.\u003c\/li\u003e \u003cli\u003eProjects involving motor loads, HVAC equipment, or other 480V circuits that require robust branch-circuit protection with precise trip characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e Equip your panel with the Siemens ED43B045 to ensure durable, precise protection for your 3-phase 480V infrastructure. This bolt-on, thermal-magnetic breaker is engineered to perform consistently under real-world conditions, delivering the safety and reliability your electrical system depends on. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349789855906,"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_5744e548-fc16-4449-b358-58c1e988a834.png?v=1764156825","url":"https:\/\/www.ampstate.com\/products\/siemens-ed43b045-45a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}