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Siemens HGB3K125B - Molded Case Circuit Breaker 125A 600V 3P

Siemens
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Siemens HGB3K125B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial electrical systems. It features a 125A current rating and a 600V AC voltage rating, housed within a compact, durable GB2 frame measuring 72.9mm x 75.2mm x 126.7mm (2.87" x 2.961" x 4.988") and weighing 2.756 lb. This three-pole, bolt-on breaker complies with UL, CSA, IEC, and NOM standards and offers a 35kA interrupting capacity at 480V AC for robust fault protection. Its thermal-magnetic trip unit with long-time and instantaneous (LI) functions ensures stable operation across a temperature range of -25°C to 70°C (-13°F to 158°F), making it suitable for panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, GB2 Series, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 72.9mm x 75.2mm x 126.7mm (2.87" x 2.961" x 4.988")
  • Standards: UL, CSA, IEC, NOM
  • Applications: Panelboards, Switchboards, Industrial Control Panels
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3-Phase
  • AIC Rating: 35kA @ 480V AC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: GB2 Frame
  • Trip Type: Thermal-Magnetic
  • Breaker Type: Molded Case
  • Mounting: Fixed
  • Certification: UL, CSA, IEC, NOM
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Standards: UL, CSA, IEC, NOM
  • Country of Origin: Mexico


Product Identification
  • UPC: 804766340017
  • GTIN: 00804766340017