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Westinghouse LB3400K - Molded Case 400A 600V 3-Pole

Westinghouse
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Westinghouse LB3400K is a 3-pole molded case circuit breaker from the AB DE-ION family, designed as a non-automatic switch providing no overcurrent protection for industrial power distribution. It is rated for 600V AC and 400A, with an interrupting capacity of 30kA at 480V, and features a bolt-on connection for secure panel mounting. The unit weighs 20 lb and utilizes an LB frame with a thermal magnetic trip unit offering long time and instantaneous trip functions, along with interchangeable trip and load side lug terminals. This breaker complies with industry standards for robust industrial applications requiring manual switching without integrated protection. Typical uses include service entrance disconnects, main switch applications, and feeder isolation in commercial and industrial settings.

Key Features & Specifications
  • Type: Molded Case
  • Family: AB DE-ION
  • Type: LB
  • Weight: 20 lb
  • Functions: NA - No Overcurrent Protection
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Non-Automatic
  • AIC rating: 30kA@480V
  • Phase: 3
  • Current Rating: 400A
  • Amperage: 400 Amp
  • Voltage: 600 Volt AC
  • Frame Type: LB Frame
  • Mounting Type: Bolt-On
  • Interrupt Rating: 30kA at 480V
  • Trip Unit: Thermal Magnetic with Long Time and Instantaneous Trip Functions
  • Interchangeable Trip
  • Load Side Lug Terminals