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Westinghouse MA3150T - Thermal Magnetic Trip Unit 150A 600V

Westinghouse
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The Westinghouse MA3150T is a thermal magnetic circuit breaker trip unit designed to provide long-time and instantaneous (LI) protection against overloads and short circuits. This 3-pole unit is rated for 600V AC and is adjustable from 150 to 150 amperes, offering precise current protection for industrial power distribution systems. Weighing 4 lb, it is constructed as a solid-state trip unit compatible with MA and HMA frame circuit breakers, ensuring reliable operation in demanding environments. The MA3150T meets industry standards for overcurrent protection, making it suitable for use in switchboards, panelboards, and motor control centers. Typical applications include protecting feeders, branch circuits, and large motors in manufacturing plants, commercial buildings, and utility substations.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 150 A (minimum 150 A, maximum 150 A)
  • Poles: 3
  • Protection: LI - Long-Time and Instantaneous
  • Compatible Frames: MA, HMA
  • Weight: 4 lb
  • Functions: Long-Time and Instantaneous
  • Family: MA Series
  • Item Subcategory: Trip Units & Programmers


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