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Siemens EF3B050 - Molded Case 50A 600V 3-Pole Breaker

Siemens
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Siemens EF3B050 is a 3-pole molded case circuit breaker from the EF Series, designed for thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 600V AC, 50A continuous current, and an AIC rating of 14kA at 480V, with a bolt-on connection for secure panel mounting. Weighing 8 lb, this compact unit features a robust molded case construction suitable for industrial environments. It complies with applicable UL and NEMA standards for overcurrent protection. Typical applications include motor control centers, distribution panels, and branch circuit protection in commercial and industrial power systems.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, LI (Long-Time and Instantaneous)
  • Voltage Rating: 600V AC
  • Current Rating: 50A
  • Poles: 3
  • Connection: Bolt-On
  • AIC rating: 14kA@480V
  • Phase: 3
  • Weight: 8 lb
  • Functions: LI - Long-Time and Instantaneous
  • Family: EF Series
  • Protection: Thermal Magnetic


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