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Westinghouse HLB3125T - Thermal Magnetic Trip Unit 125A 600V 3-Pole

Westinghouse
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Westinghouse HLB3125T is a three-pole thermal magnetic circuit breaker trip unit designed for providing reliable overcurrent protection in industrial power distribution systems. It is rated for 600V applications and features a fixed 125A current rating with LI (Long-time and Instantaneous) trip functions for coordinated protection against both sustained overloads and short-circuit faults. This unit is constructed for durability and is part of the MARK 75 family, specifically engineered for compatibility with LB and HLB breaker frames. It complies with industry standards for circuit protection devices and is typically applied in panelboards, switchboards, and industrial control panels where robust and predictable overcurrent protection is required.

Key Features & Specifications
  • Type: HLB Type Thermal Magnetic Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 125A
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Compatible Frames: LB, HLB
  • Family: MARK 75
  • Item Subcategory: Trip Units & Programmers
  • Weight: 2 lb