{"product_id":"square-d-egb16050-50a-277v-1-pole-bolt-on-circuit-breaker","title":"Square D EGB16050 - 50 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D EGB16050 — a 50A, 277V, 1-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built for power reliability in busy commercial spaces and demanding residential setups, this breaker helps keep circuits safe from overcurrent and short-circuit events.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong bolt-on mounting\u003e provides a secure, vibration-resistant bus connection, reducing the risk of loose connections in environments with equipment movement or vibration.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining a thermal element for gradual overloads with a magnetic mechanism for immediate response to short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e31-compatibility with OEM panels\u003c\/strong\u003e designed to pair with matching Square D load centers and panelboards, ensuring a clean fit and reliable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e50A at 277V\u003c\/strong\u003e—well-suited for feeder or branch circuits in commercial lighting, small motors, pumps, and HVAC control circuits, as well as residential distribution panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eDesigned for real-world use\u003c\/h2\u003e\n\u003cp\u003eThis 1-pole molded case breaker is ideal for installations where space, reliability, and mounting security matter most. In panelboards and load centers, it provides decisive protection for a single live conductor, isolating faults quickly to minimize damage and downtime. The bolt-on design is especially advantageous in panels exposed to vibration or where a solid, durable connection is critical for long-term performance.\u003c\/p\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e\n\u003cp\u003eElectricians upgrading panelboards, facilities managers overseeing commercial spaces, and tradespeople installing or replacing feeders in light industrial environments will appreciate the combination of secure mounting, predictable trip behavior, and OEM compatibility. It’s a practical choice for retrofit projects and new installations that require a proven, plug-compatible solution.\u003c\/p\u003e \u003ch3\u003eUse cases and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed 1-pole breaker in existing Square D panelboards or load centers that require a 50A, 277V device.\u003c\/li\u003e \u003cli\u003eFeeding commercial lighting circuits or small-motor equipment where reliable 277V protection is essential.\u003c\/li\u003e \u003cli\u003eRetrofits in residential or light commercial spaces where vibration or movement could affect connections and long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePerformance and practicality\u003c\/h3\u003e\n\u003cp\u003eWith its thermal-magnetic trip, the EGB16050 provides a balanced response: it minimizes nuisance trips from gradual surges while acting decisively on dangerous faults. This translates to fewer service calls, quicker fault isolation, and better continuity for critical loads. The molded-case construction supports consistent interrupting performance across environments, making it a durable choice for panels that service everyday life and business operations.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: EGB16050\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 50A\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\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355200344226,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-egb16050-50-a-277-v-1-pole-bolt-on-circuit-breaker-965.webp?v=1788740647","url":"https:\/\/www.ampstate.com\/products\/square-d-egb16050-50a-277v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}