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Westinghouse LB3090T - Thermal Magnetic Trip Unit 90A 3-Pole

Westinghouse
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The Westinghouse LB3090T is a thermal magnetic circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC and provides adjustable long-time and instantaneous (LI) trip functions across a 90-ampere current range. This three-pole unit weighs 2 lb and is constructed as a trip unit compatible with LB and HLB frame sizes. It meets industry standards for reliable circuit interruption in demanding environments. Typical applications include protecting feeders and branch circuits in switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 90A (Minimum 90A, Maximum 90A)
  • Poles: 3
  • Functions: LI - Long-Time and Instantaneous
  • Protection: Thermal Magnetic
  • Compatible Frames: LB, HLB
  • Weight: 2 lb
  • Family: AB DE-ION
  • Item Subcategory: Trip Units & Programmers