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Siemens J2B125 - Molded Case Circuit Breaker 125A 600V 2-Pole

Siemens
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Siemens J2B125 is a 125A, 2-pole molded case circuit breaker from the J Frame family, designed for thermal-magnetic overcurrent protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 600V and 1-phase operation, with a bolt-on connection for secure panelboard mounting. The unit weighs 17 lb and features a compact Type J construction suited for industrial environments. This breaker complies with UL and CSA standards for reliable fault interruption. Typical applications include branch circuit protection in commercial and light industrial power distribution systems.

Key Features & Specifications
  • Manufacturer: Siemens
  • Model: J2B125
  • Type: J
  • Amperage: 125 Amp
  • Voltage Rating: 600 Volt
  • Poles: 2
  • Phase: 1
  • Mounting Type: Bolt-On
  • Trip Unit: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 17 lb
  • Certifications: UL Listed, CSA Approved
  • Series/Frame: J Series Molded Case