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Siemens EF3B040L - Molded Case 40A 600V (3-Pole LI Protection)

Siemens
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Siemens EF3B040L is a 3-pole, 40 amp molded case circuit breaker from the EF Series, providing long-time and instantaneous (LI) thermal magnetic protection for industrial and commercial power distribution systems. It is rated for 600V AC with a 14kA interrupting capacity at 480V, ensuring reliable fault interruption in three-phase applications. Weighing 8 lb, this bolt-on unit features a feed-thru connection and is designed for robust performance in demanding electrical environments. The breaker complies with UL standards, supporting safe and efficient circuit management. It is suitable for use in panelboards and switchboards within industrial and commercial facilities.

Key Features & Specifications
  • Type: Molded Case
  • Family: EF Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • AIC rating: 14kA@480V
  • Phase: 3
  • Current Rating: 40A
  • Weight: 8 lb
  • Mounting Type: Bolt-On
  • Standards: UL Listed
  • Application: Industrial, Commercial


Part Number: EF3B040L