{"product_id":"square-d-egb16045-45a-277v-1-pole-bolt-on-circuit-breaker","title":"Square D EGB16045 - 45 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cstrong\u003eSquare D EGB16045\u003c\/strong\u003e is a 45A, 277V, 1-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for durability, this unit anchors securely with bolt-on mounting, creating a rigid, vibration-resistant bus connection that helps maintain consistent electrical performance even in demanding installations. \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across temperature changes and electrical noise, reducing nuisance trips while safeguarding equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 45A rating\u003c\/strong\u003e isolates a single branch circuit with precise protection for lighting, receptacle, and small-motor loads common in residential and light commercial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e277V operation\u003c\/strong\u003e makes it an ideal choice for commercial lighting circuits and other 277V applications where reliable protection is required.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e delivers a secure, vibration-resistant connection to the bus, simplifying maintenance and long-term panel performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to work with matching Square D OEM load centers and panelboards, ensuring a smooth fit and straightforward replacement without adapters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments, making it a practical choice for new installations or panel upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose the Square D EGB16045 for your project? When reliability, precise tripping, and durable mounting matter, this breaker keeps critical circuits protected from overcurrent and short circuits. It’s especially well-suited for panelboards and load centers that demand a cohesive, OEM-aligned protection solution, minimizing compatibility concerns and installation time.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWho is this ideal for?\u003c\/strong\u003e Electricians and facilities managers working on 277V electrical distributions, panelboard modernizations, or residential subpanels that require dependable single-pole protection with a robust mounting method. It’s a strong match for projects where a compact, bolted solution enhances circuit security and reduces vibration-induced wear over the life of the installation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: EGB16045\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 45A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 277V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 1\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\u003eChoose the Square D EGB16045 for a dependable, OEM-aligned protection solution that pairs straightforward installation with steady, predictable performance across a range of residential, commercial, and light industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355200278690,"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_dcdeea0e-1ef0-4a7c-bec8-0b66c8e8c0f4.png?v=1764690276","url":"https:\/\/www.ampstate.com\/products\/square-d-egb16045-45a-277v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}