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Siemens HE43M090 - Molded Case Circuit Breaker 90A 480V

Siemens
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Siemens HE43M090 is a 3-pole molded case circuit breaker from the HE Series, designed for overcurrent and short-circuit protection in power distribution systems. It is rated for 90A at 480V AC with a 25kA interrupting capacity, and features thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions for reliable fault response. The unit weighs 7 lb, uses a bolt-on connection with load-side lug terminals, and is built for 3-phase applications. It complies with industry standards for industrial and commercial electrical installations. Typical applications include panelboards, switchboards, and motor control centers in manufacturing plants, commercial buildings, and utility systems.

Key Features & Specifications
  • Manufacturer: Siemens
  • Item Subcategory: Molded Case
  • Family: HE Series
  • Type: HE
  • Weight: 7 lb
  • 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: 90A
  • Terminal Type: Load-Side Lug
  • Temperature Rating: 50 degrees Celsius