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Siemens LGB3B040B - Molded Case Circuit Breaker, 40A 600V 3P

Siemens
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Siemens LGB3B040B is a molded case circuit breaker designed for providing reliable thermal-magnetic protection against overloads and short circuits in three-phase electrical systems. It features a 40A current rating and a 600V voltage rating, housed within a compact, bolt-on configuration measuring 2.961" x 2.87" x 4.997" and weighing 2.756 lb. The device is certified to UL, CSA, IEC, and NOM standards and operates effectively across a temperature range of -25°C to 70°C. It is typically applied in industrial panelboards and switchboards where its 100kA interrupting capacity at 240V and compatibility with 8 to 1/0 AWG copper or aluminum conductors are required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, LGB Type
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Dimensions: 2.961" x 2.87" x 4.997" (75.2mm x 72.9mm x 126.9mm)
  • Standards: UL, CSA, IEC, NOM
  • Applications: Industrial Panelboards, Switchboards, Motor Control Centers
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • AIC Rating: 100kA @ 240V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Wire Size: 8 - 1/0 AWG (Copper or Aluminum)
  • Certification: UL, CSA, IEC, NOM
  • Family: VL Series
  • Country of Origin: Mexico
  • Weight: 2.756 lb


Product Identification
  • UPC: 887621220266
  • GTIN: 00887621220266