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Siemens HE3B090 - Molded Case Circuit Breaker, 90A 3-Pole (25kA AIC)

Siemens
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Siemens HE3B090 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 90A continuous current rating and a 480V AC voltage rating, with a robust thermal-magnetic trip unit offering both long-time and instantaneous (LI) protection functions. The breaker is constructed as a three-pole, bolt-on unit with a 25kA interrupting capacity at 480V, housed within the compact HE series frame. It is engineered to meet relevant industry standards for safety and performance in demanding electrical environments, making it suitable for use in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, HE Series
  • Voltage Rating: 480V AC
  • Current Rating: 90A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 25kA @ 480V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Frame Size: HE Series
  • Weight: 8 lb
  • Item Subcategory: Molded Case