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Westinghouse MA3125S - Molded Case 125A 600V 3-Pole

Westinghouse
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The Westinghouse MA3125S is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 125A continuous current at 600VAC, with an interrupting capacity of 30kA at 480VAC for three-phase applications. This bolt-on unit weighs 54 lb and features a thermal-magnetic trip mechanism providing LI (Long-Time and Instantaneous) protection functions. It complies with applicable UL and NEMA standards for industrial circuit protection. Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic
  • Voltage Rating: 600V
  • Current Rating: 125A
  • Poles: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC rating: 30kA@480V
  • Phase: 3
  • Weight: 54 lb
  • Family: MA Series
  • Functions: LI - Long-Time and Instantaneous


Product Identification
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