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Siemens EF3B100 - 100A 3-Pole Thermal Magnetic Breaker

Siemens
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Siemens EF3B100 Circuit Breaker - 100A 3-Pole Thermal Magnetic The Siemens EF3B100 is a 100-amp, three-pole molded case circuit breaker from the EF Series, designed to provide long-time and instantaneous (LI) protection against overloads and short circuits in industrial power distribution systems. Rated for 600V AC and 3-phase operation, this bolt-on unit delivers an interrupting capacity of 14kA at 480V, ensuring reliable fault interruption in demanding environments. Weighing 8 lb, the breaker features a compact, thermal-magnetic trip mechanism housed in a durable molded case for robust performance. It complies with applicable industry standards for safety and reliability, making it suitable for use in panelboards, switchboards, and motor control centers. Typical applications include protecting branch circuits, feeders, and equipment in manufacturing plants, commercial buildings, and heavy industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, EF Series, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 14kA@480V
  • Weight: 8 lb
  • Functions: Long-Time and Instantaneous Trip
  • Item Subcategory: Molded Case
  • Family: EF Series
  • Type: EF


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