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Siemens JK3B125 - 125A 3-Pole 600V Thermal Magnetic Breaker

Siemens
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Siemens JK3B125 Circuit Breaker - 125A 3-Pole 600V Thermal Magnetic Molded Case The Siemens JK3B125 is a 3-pole molded case circuit breaker from the JK Frame family, designed to provide LI (Long-Time and Instantaneous) protection for industrial electrical systems. It is rated for 600V AC and 125A continuous current, utilizing a thermal magnetic trip mechanism to safeguard against overloads and short circuits. This bolt-on unit weighs 16 lb and features a compact 3-phase configuration suitable for panelboard installation. The breaker complies with UL and NEMA standards for industrial power distribution applications. Typical uses include motor control centers, lighting panels, and branch circuit protection in manufacturing facilities.

Key Features & Specifications
  • Type: JK Molded Case Circuit Breaker
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic (LI - Long-Time and Instantaneous)
  • Weight: 16 lb
  • Family: JK Frame
  • Item Subcategory: Molded Case


Product Identification
  • UPC: Not available
  • GTIN: Not available