{"product_id":"siemens-ed23b045-45a-240v-3-pole-bolt-on-circuit-breaker","title":"Siemens ED23B045 - 45 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens ED23B045 is a 45A, 240V, 3-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Built for durability and steady performance, it’s a smart choice for electricians and facilities managers seeking solid, long-term protection for their electrical distribution.\u003c\/p\u003e \u003ch3\u003eWhy the Siemens ED23B045 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting:\u003c\/strong\u003e A rigid, vibration-resistant bus connection minimizes loosening and arcing, enhancing reliability in busy electrical rooms and equipment spaces.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Provides stable, repeatable protection against both overloads and short circuits, helping prevent damage to wiring and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design:\u003c\/strong\u003e Specifically designed to pair with matching Siemens OEM load centers and panelboards for a seamless, guaranteed fit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple environments:\u003c\/strong\u003e Suitable for residential, commercial, and light industrial applications where dependable protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems does it solve?\u003c\/h3\u003e\n\u003cp\u003eThis 3-pole breaker protects three separate conductors tied to three-phase 240V systems, preventing overcurrent situations and quick, decisive interruption during short circuits. The bolt-on construction reduces vibration-induced wear and improves contact integrity, contributing to safer, more predictable operation over time.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or expanding panelboards in light commercial spaces or small industrial facilities.\u003c\/li\u003e \u003cli\u003eRetrofit installations where a secure, vibration-resistant connection is critical.\u003c\/li\u003e \u003cli\u003eResidential or commercial service panels requiring dependable 3-pole protection for 240V circuits.\u003c\/li\u003e \u003cli\u003eProtection of motor loads and distribution circuits that demand consistent trip performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\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 ED23B045\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 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\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 \u003ch3\u003ePractical tips for installation and long-term use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePair with matching Siemens OEM load centers and panelboards to ensure seamless compatibility and optimal performance.\u003c\/li\u003e \u003cli\u003eInstall in a clean, accessible panel space to facilitate inspection and maintenance of the bus connections.\u003c\/li\u003e \u003cli\u003eUse this 3-pole unit where a 240V, three-phase protection scheme is required, or where three simultaneous conductors need synchronized overcurrent protection.\u003c\/li\u003e \u003cli\u003ePlan for future expansion: the 45A rating provides a balance between circuit protection and load requirements in many small-to-mid-size installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens ED23B045 for a dependable, purpose-built solution that combines secure mounting, precise thermal-magnetic protection, and OEM-ready compatibility—delivering peace of mind for electrical systems in homes, businesses, and light industry.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349786677410,"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_5aead162-c257-4f23-916f-45e67f4e10d8.png?v=1764156697","url":"https:\/\/www.ampstate.com\/products\/siemens-ed23b045-45a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}