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Siemens JK3B125 - Molded Case Circuit Breaker 125A 600V

Siemens
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Save $-360.72
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Siemens JK3B125 is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial and commercial power distribution systems. It is rated for 125 amps at 600 VAC and utilizes a thermal magnetic trip unit with LI (Long-Time and Instantaneous) protection functions. This bolt-on mounted breaker weighs 16 lb and is constructed within the JK frame family. The device complies with industry standards for molded case circuit breakers, ensuring reliable performance in demanding environments. Typical applications include branch circuit protection, feeder protection, and main disconnect service in panelboards and switchboards.

Key Features & Specifications
  • Manufacturer: Siemens
  • Type: JK
  • Poles: 3
  • Current Rating: 125 Amps
  • Voltage Rating: 600 VAC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Weight: 16 lb
  • Phase: 3
  • Item Subcategory: Molded Case
  • Family: JK Frame


Part Number: JK3B125