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Cutler Hammer 673B125G12 - Circuit Breaker 125A 600V 2-Pole

Cutler Hammer
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Cutler Hammer 673B125G12 is a Series G molded case circuit breaker from the SELTRONIC family, designed to provide overcurrent protection for industrial and commercial electrical systems. This 2-pole unit is rated for 125 amperes at 600 volts AC, utilizing a thermal-magnetic trip unit for reliable short-circuit and overload protection. Constructed with an aluminum housing and weighing 15 lb, it features a bolt-on mounting type with screw-type terminals that accept wire sizes from #4 to 4/0 AWG. The circuit breaker is UL Listed and CSA Certified, meeting stringent industry standards for safety and performance. It is typically applied in panelboards, switchboards, and motor control centers, where its MCP-compatible frame ensures integration with motor circuit protector applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Cutler Hammer
  • Model: 673B125G12
  • Family: SELTRONIC
  • Series/Frame: Series G
  • Amperage: 125A
  • Voltage Rating: 600 VAC
  • Number of Poles: 2
  • Trip Unit: Thermal-Magnetic
  • Mounting Type: Bolt-on
  • Interrupt Rating: Typically 10kAIC at 240 VAC
  • Metal Type: Aluminum
  • Weight: 15 lb
  • Terminal Connection: Screw type
  • Wire Size Range: #4 to 4/0 AWG
  • Certifications: UL Listed, CSA Certified
  • Compatible Frames: MCP
  • Suitable for AC applications only