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Westinghouse 504C740G12 - Molded Case 350A 2-Pole Breaker

Westinghouse
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Westinghouse 504C740G12 is a 2-pole molded case circuit breaker from the MARK 75 family, designed for overcurrent protection in low voltage distribution systems. It is rated for 350A continuous current at 600V AC, with a thermal magnetic trip unit providing LI (Long-Time and Instantaneous) protection functions. This bolt-on breaker weighs 26 lb and features a single-phase, 2-pole construction with an interrupting capacity of 35kA at 480V AC. It complies with IEC 60947-2 standards for reliable performance in industrial environments. Typical applications include protecting feeders, motors, and branch circuits in commercial and industrial power distribution panels.

Key Features & Specifications
  • Type: Molded Case
  • Family: MARK 75
  • Type: HLA
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Current Rating: 350A
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 35kA at 480V
  • Phase: 1
  • Weight: 26 lb
  • Standards: IEC 60947-2 Compliant