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Siemens LGB2K040B - Molded Case Circuit Breaker 40A 2-Pole

Siemens
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Siemens LGB2K040B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 40A current rating and a 600V voltage rating, housed within a compact GB2 frame with bolt-on connections and dimensions of 2.87 x 1.969 x 4.988 inches (73 x 50 x 127 mm). The breaker complies with UL, CSA, IEC, and NOM standards and offers thermal-magnetic protection with long-time and instantaneous (LI) trip functions, ensuring safe operation across a temperature range of -25°C to 70°C. Its 65kA interrupting capacity at 480V makes it suitable for protecting feeders and branch circuits in panelboards and switchboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Dimensions: 2.87 x 1.969 x 4.988 inch (73 x 50 x 127 mm)
  • Standards: UL, CSA, IEC, NOM
  • Applications: Industrial & Commercial Panelboards, Switchboards, Feeder & Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: 2-Pole
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 1
  • AIC Rating: 65kA @ 480V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: GB2 Frame
  • Weight: 1.852 lb
  • Certification: UL, CSA, IEC, NOM


Product Identification
  • UPC: 804766340222
  • GTIN: 00804766340222