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Siemens EF2B125 - Molded Case 125A 2-Pole 600V Breaker

Siemens
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Siemens EF2B125 is a 2-pole molded case circuit breaker from the EF Series, designed to provide LI (Long-Time and Instantaneous) protection for electrical circuits. This thermal magnetic breaker is rated for 600V AC, 125A continuous current, and delivers a 14kA interrupting capacity at 480V, ensuring reliable overcurrent protection in single-phase applications. Weighing 3 lb, it features a bolt-on connection style for secure installation in compatible panelboards and switchboards. The breaker complies with industry standards for molded case circuit breakers, making it suitable for industrial and commercial power distribution systems where branch circuit protection is required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, EF Series, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 2
  • Phase: 1
  • AIC Rating: 14kA@480V
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • Functions: Overcurrent and short-circuit protection
  • Weight: 3 lb
  • Standards: UL 489, CSA C22.2
  • Applications: Industrial and commercial power distribution, branch circuit protection


Product Identification
  • Manufacturer: Siemens
  • Model: EF2B125
  • Family: EF Series
  • Type: EF