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Westinghouse LM3400L - 400A 3-Pole Thermal Magnetic

Westinghouse
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Westinghouse LM3400L Circuit Breaker - 400A 3-Pole Thermal Magnetic The Westinghouse LM3400L is a 3-pole molded case circuit breaker from the LM Series, designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 400A continuous current, and provides LI (Long-Time and Instantaneous) protection functions through a thermal magnetic trip mechanism. This feed-thru connection breaker weighs 12 lb and features a robust molded case construction suitable for panelboard installation. It complies with industry standards and carries an AIC rating of 18kA at 480V, making it suitable for 3-phase applications requiring reliable fault interruption.

Key Features & Specifications
  • Type: Molded Case
  • Voltage Rating: 600V
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC rating: 18kA@480V
  • Weight: 12 lb
  • Family: LM Series
  • Item Subcategory: Molded Case


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