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Siemens HE43M040 - Molded Case Circuit Breaker 40A 480V

Siemens
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Siemens HE43M040 is a 3-pole molded case circuit breaker from the HE Series, designed for overcurrent protection in electrical distribution systems. It is rated for 40 amps at 480 volts AC, with a thermal magnetic protection mechanism providing long-time and instantaneous trip functions. The unit weighs 7 lb, features bolt-on mounting, and is built on the ED frame series with load side lug terminals for secure connections. It complies with industry standards, offering a high interrupting capacity of 25kA at 480V and is calibrated for 40°C ambient temperature. This breaker is typically used in industrial and commercial power distribution panels requiring reliable circuit protection.

Key Features & Specifications
  • Type: Molded Case
  • Family: HE Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 480V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 25kA@480V
  • Phase: 3
  • Current Rating: 40A
  • Weight: 7 lb
  • Frame Series: ED
  • Ambient Temperature Rating: 40°C
  • Connection: Load Side Lug Terminals
  • Trip Unit: Non-Interchangeable