{"product_id":"square-d-edb14045-45a-277v-1-pole-bolt-on-circuit-breaker","title":"Square D EDB14045 - 45 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eDiscover the Square D EDB14045, a 45A, 277V, 1-pole bolt-on molded case circuit breaker designed to shield branch circuits in panelboards and load centers. Built by Square D, this unit combines robust construction with precise protection, delivering reliable performance in residential, commercial, and light industrial environments. Available from AmpState, it’s a dependable choice when you need consistent overcurrent and short-circuit protection.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection for dependable, long-term operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection as temperatures and loads fluctuate.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 45A rating\u003c\/strong\u003e targets single-circuit protection with precise current handling.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e277V rating\u003c\/strong\u003e makes it well-suited for commercial lighting and other 277V circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to work with matching Square D panelboards and load centers for seamless integration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e ideal for residential, commercial, and light industrial electrical protection needs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e EDB14045\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 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\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 use cases and scenarios\u003c\/h3\u003e\n\u003cp\u003eUse the EDB14045 to safeguard a single branch circuit in panelboards and load centers that serve commercial lighting, receptacle runs, or small machinery loads operating at 277V. It’s an excellent retrofit option for aging installations that need a reliable bolt-on solution, ensuring a solid bus connection even in environments with vibration or movement. For project planners and electricians, this breaker offers a straightforward drop-in replacement that aligns with Square D’s OEM panels, reducing compatibility concerns and installation time.\u003c\/p\u003e \u003ch3\u003eInstallation, compatibility, and tips\u003c\/h3\u003e\n\u003cp\u003eDesigned to pair with matching OEM Square D load centers and panelboards, the EDB14045 simplifies procurement and stocking. Its bolt-on mounting provides a secure, vibration-resistant connection that helps maintain consistent electrical performance in the field. When selecting this breaker, confirm that your panelboard is rated for 277V circuits and supports a single-pole, 45A device in the intended location.\u003c\/p\u003e \u003ch3\u003eWhy choose this Square D breaker from AmpState\u003c\/h3\u003e\n\u003cp\u003eIf you’re sourcing dependable branch circuit protection with a proven thermal-magnetic trip design, the EDB14045 delivers precise protection for everyday electrical loads. Its combination of bolt-on reliability, volt-age compatibility with 277V systems, and OEM-panel compatibility makes it a practical, long-term choice for installers focused on safety, performance, and project efficiency.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355186090146,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_aab13481-c85d-456f-a4b1-1fcc6384457d.png?v=1764690192","url":"https:\/\/www.ampstate.com\/products\/square-d-edb14045-45a-277v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}