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Westinghouse UL 489 AC Miniature Circuit Breaker, 40 Amp, 3 Pole, C Curve, 10kA, 480Y/277V AC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip
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Westinghouse UL 489 AC Miniature Circuit Features
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UL489 CERTIFIED: Meets National Electrical Code standards to serve as primary thermal overload and short circuit protection. Approved by Underwriters Laboratories for Branch Circuit Protection in US and Canada. UL File No. E517928.
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STANDARD INSTALLATION: Snaps on 35mm DIN rails or may be directly mounted to control panels. Typically used in branch circuit applications including motor control circuits, HVAC / HVACR equipment, and various OEM equipment.
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SPECIFICATIONS: 3 Pole / 40A / C Curve, 480Y/277VAC, Rated for 10kA SCCR, AC Miniature Circuit Breaker. Westinghouse Model No. WMBB3C40.
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CURRENT LIMITING: Westinghouse DIN rail breakers are designed to interrupt within the first half of the AC cycle compared to 1 to 2 AC cycles for conventional breakers.
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WHAT'S INCLUDED: (1) Three pole DIN rail circuit breaker only. DIN rail and installation kit sold separately.
