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Siemens EF3A040L - Molded Case Breaker 40A 600V 3-Pole

Siemens
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Siemens EF3A040L is a 3-pole molded case circuit breaker from the EF Series designed for instantaneous magnetic-only overcurrent protection in industrial power distribution systems. It is rated for 600V AC and 40A continuous current, with an interrupting capacity of 14kA at 480V AC. The unit features a feed-thru connection style and weighs 8 lb, constructed for robust three-phase applications. This breaker complies with industry standards for magnetic-only trip protection, ensuring reliable response to short-circuit conditions. Typical applications include motor control centers and industrial equipment requiring precise overcurrent protection without thermal delay.

Key Features & Specifications
  • Type: Molded Case
  • Family: EF Series
  • Poles: 3
  • Current Rating: 40A
  • Voltage Rating: 600V
  • Protection: Magnetic Only
  • Functions: I - Instantaneous
  • Connection: Feed-Thru
  • AIC Rating: 14kA@480V
  • Phase: 3
  • Weight: 8 lb