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Siemens HEG3B125 - Molded Case Circuit Breaker 125A 600V

Siemens
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Siemens HEG3B125 is a 3-pole molded case circuit breaker from the VL Series, engineered to provide thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions for industrial and commercial power distribution systems. Rated for 125A at up to 600V AC, this EG Frame unit delivers a robust interrupting capacity of 65kA at 480V for reliable short-circuit and overload safeguarding. The bolt-on connection design and compact 3 lb weight facilitate straightforward panel installation, though lugs are not included and must be sourced separately. This breaker complies with industry standards for 50/60 Hz frequency systems, ensuring dependable performance in demanding electrical environments. Typical applications include branch circuit protection, feeder protection, and main disconnect duties in manufacturing facilities, data centers, and commercial buildings.

Key Features & Specifications
  • Type: Molded Case
  • Family: VL Series
  • Frame Size: EG Frame
  • Poles: 3
  • Current Rating: 125A
  • Voltage Rating: 600V AC
  • Interrupt Rating: 65kA at 480V
  • Protection: Thermal Magnetic
  • Trip Unit Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Phase: 3
  • Frequency: 50/60 Hz
  • Weight: 3 lb
  • Additional Info: Lugs are not included