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Siemens E43B090 - Molded Case Circuit Breaker, 90A, 480V 3P

Siemens
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Siemens E43B090 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 long-time and instantaneous (LI) protection functions. The breaker is constructed as a 3-pole, bolt-on unit with an 18kA interrupting capacity at 480V, housed in a compact E-frame design with a weight of 3 lb for durable performance. It is engineered to meet relevant industry standards for safety and performance in demanding electrical environments. Typical applications include protection for feeders, motors, and other equipment within industrial control panels and switchgear.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, E Series, Thermal Magnetic Protection
  • Voltage Rating: 480V AC
  • Current Rating: 90A
  • Poles: 3
  • Connection: Bolt-On
  • AIC Rating: 18kA @ 480V
  • Phase: 3
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Frame Size: E
  • Weight: 3 lb


Product Identification
  • Manufacturer Part Number: E43B090