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Thomas & Betts LSB320350E - Molded Case Breaker 350A 240V 3-Pole

Thomas & Betts
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Thomas & Betts LSB320350E is a 3-pole molded case circuit breaker from the LSB Series, designed to provide LI (Long-Time and Instantaneous) protection through thermal magnetic operation for industrial power distribution systems. This 350A unit is rated for 240V AC, 3-phase applications with a 42kA interrupting capacity at 240V, utilizing a bolt-on connection style. The breaker weighs 20 lb and is constructed as a bolt-on type molded case unit without included lugs, requiring separate lug selection based on wiring specifications. It complies with industry standards for molded case circuit breakers and is suitable for protecting electrical circuits in commercial and industrial environments. Typical applications include service entrance, panelboard, and switchboard installations requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, LSB Series, Thermal Magnetic, Bolt-On
  • Voltage Rating: 240V AC
  • Current Rating: 350A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 42kA@240V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 20 lb
  • Additional Info: This item does not include Lugs. If you would like lugs please reach out to a sales rep with wiring specs and we can help you with the lugs part number.


Product Identification
  • UPC: 786210898089