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Siemens EF3S150 - Molded Case 150A 600V 3-Pole

Siemens
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Siemens EF3S150 Circuit Breaker is a 3-pole molded case circuit breaker designed for instantaneous magnetic-only protection in industrial power distribution systems. It is rated for 600V AC, 150A continuous current, and provides an interrupting capacity of 14kA at 480V AC. The unit weighs 8 lb and features a bolt-on connection style, with a compact frame size suitable for panelboard or switchboard installation. This breaker complies with UL and NEMA standards for overcurrent protection in commercial and industrial environments. Typical applications include motor control centers, lighting panels, and feeder circuits requiring high fault current interruption without thermal delay.

Key Features & Specifications
  • Type: Molded Case, Magnetic Only, Instantaneous Trip
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 14kA@480V
  • Protection: Magnetic Only
  • Functions: I - Instantaneous
  • Weight: 8 lb
  • Family: EF Series
  • Type: EF
  • Item Subcategory: Molded Case


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