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Westinghouse LAB3300 - Molded Case Breaker 300A 600V

Westinghouse
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Westinghouse LAB3300 is a 3-pole, 300A molded case circuit breaker from the LAB Series, designed for thermal-magnetic protection with long-time and instantaneous (LI) trip functions. Rated for 600V and 3-phase systems, it delivers a 30kA interrupting capacity at 480V and features a bolt-on connection for secure panel mounting. Weighing 29 lb, this compact unit is built for reliable overcurrent protection in industrial and commercial power distribution applications. It meets UL listing standards for safety and performance.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Westinghouse
  • Part Number: LAB3300
  • Amperage: 300A
  • Voltage: 600V
  • Poles: 3
  • Phase: 3
  • Mounting Type: Bolt-On
  • Interrupt Rating: 30kA @ 480V
  • Series/Frame: LAB Series
  • Trip Unit: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 29 lb
  • Certifications: UL Listed