{"product_id":"hfb1045l-westinghouse-45a-1p-277v-molded-case-circuit-breaker-mark-75-frame-65ka-interrupt-rating","title":"HFB1045L - Westinghouse 45A 1P 277V Molded Case Circuit Breaker MARK 75 Frame 65kA Interrupt Rating","description":" \t\t\t\t\t\t\t\t\t\t\u003ch2\u003eHFB1045L\u003c\/h2\u003e                                         \u003cbr\u003e \t\t\t\t\t\t\t\t\t\t\u003cb\u003eHFB1045L\u003c\/b\u003e is a Westinghouse MARK 75 molded case circuit breaker designed for reliable protection in low-voltage electrical systems. This 1-pole breaker is rated for 45 amps and 277 volts AC, making it suitable for a variety of commercial and industrial applications. The HFB1045L features a thermal magnetic trip unit for overload and short circuit protection. It is part of the MARK 75 series and is compatible with standard FB frame mounting configurations. The breaker is engineered to deliver a symmetrical interrupting rating of 65,000 amps at 277 volts AC, ensuring robust performance under fault conditions. \u003cul\u003e \u003cli\u003ePart Number: HFB1045L\u003c\/li\u003e \u003cli\u003eManufacturer: Westinghouse\u003c\/li\u003e \u003cli\u003eSeries\/Frame: MARK 75\u003c\/li\u003e \u003cli\u003eAmperage: 45A\u003c\/li\u003e \u003cli\u003eVoltage: 277V AC\u003c\/li\u003e \u003cli\u003ePoles: 1\u003c\/li\u003e \u003cli\u003eInterrupt Rating: 65,000A symmetrical at 277V AC\u003c\/li\u003e \u003cli\u003eMounting Type: FB Frame\u003c\/li\u003e \u003cli\u003eTrip Unit: Thermal Magnetic\u003c\/li\u003e \u003cli\u003eApplication: Molded Case Circuit Breaker\u003c\/li\u003e \u003c\/ul\u003e At \u003cb\u003eEssential Parts\u003c\/b\u003e, we offer \u003cb\u003efast shipping\u003c\/b\u003e, \u003cb\u003elowest price\u003c\/b\u003e, and \u003cb\u003eexpert support\u003c\/b\u003e to help you get the right product every time. \t\t\t\t\t\t\t\t\t\t\u003cbr\u003e                                          \t\t\t\t\t\t\t\t\t\t\u003ch3\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h3\u003e \t\t\t\t\t\t\t\t\t\t\u003cul\u003e \t\t\t\t\t\t\t\t\t\t\t\u003cli\u003ePart Number: HFB1045L\u003c\/li\u003e                                             \u003cli\u003eManufacturer : Westinghouse\u003c\/li\u003e\n\u003cli\u003eCategory : Circuit Breaker\u003c\/li\u003e\n\u003cli\u003eItem Subcategory : Molded Case\u003c\/li\u003e\n\u003cli\u003eFamily : MARK 75\u003c\/li\u003e\n\u003cli\u003eType : HFB\u003c\/li\u003e\n\u003cli\u003eVoltage : 277\u003c\/li\u003e\n\u003cli\u003eAmperage : 45\u003c\/li\u003e\n\u003cli\u003ePhase : 1\u003c\/li\u003e\n\u003cli\u003ePoles : 1\u003c\/li\u003e\n\u003cli\u003eAIC rating : 65kA@277V\u003c\/li\u003e\n\u003cli\u003eConnection : Feed-Thru\u003c\/li\u003e\n\u003cli\u003eFunctions : LI - Long-Time and Instantaneous\u003c\/li\u003e\n\u003cli\u003eProtection : Thermal Magnetic\u003c\/li\u003e \t\t\t\t\t\t\t\t\t\t\u003c\/ul\u003e                                         \u003cbr\u003e                                         \u003ch3\u003e\u003cb\u003eProduct Data\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWeight : 1 \u003c\/li\u003e\u003c\/ul\u003e                                         \u003cbr\u003e                                          ","brand":"Westinghouse","offers":[{"title":"Re-Certified","offer_id":42983187054751,"sku":"HFB1045L-ReCert","price":196.35,"currency_code":"USD","in_stock":true}],"url":"https:\/\/essentialparts.com\/products\/hfb1045l-westinghouse-45a-1p-277v-molded-case-circuit-breaker-mark-75-frame-65ka-interrupt-rating","provider":"Essential Electric Supply","version":"1.0","type":"link"}