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Westinghouse HFB2040L - Molded Case 40A 2-Pole Breaker

Westinghouse
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Westinghouse HFB2040L is a 40 Amp, 2-pole molded case circuit breaker designed for reliable thermal magnetic protection in low voltage distribution systems. It operates at a voltage rating of 600VAC and 250VDC, with a 25kA interrupting capacity at 480VAC, and features LI (Long-Time and Instantaneous) trip functions for precise overcurrent response. The breaker weighs 6 lb, utilizes a bolt-on mounting type within a 3-pole, 150 Amp frame, and includes both bottom/load-side and top/line-side lugs for secure feed-thru connections. It is UL Listed and built to meet industry standards for industrial and commercial electrical systems. Typical applications include branch circuit protection in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case
  • Current Rating: 40A
  • Voltage Rating: 600VAC, 250VDC
  • Poles: 2 poles in a 3-pole frame
  • Interrupt Rating: 25kA@480V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Feed-Thru
  • Mounting Type: Bolt-on
  • Frame/Series: Mark 75, 150 Amp frame
  • Weight: 6 lb
  • Includes bottom/load and top/line lugs
  • Certifications: UL Listed


Style Number: 4976D04G23