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Siemens QJ3B090HA01 - Molded Case Breaker 90A 240V 3-Pole

Siemens
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Siemens QJ3B090HA01 is a three-pole molded case circuit breaker from the QJH Series, designed to provide overcurrent protection through its thermal magnetic trip mechanism. It is rated for 90A at 240V AC with a 42kA interrupting capacity, supporting 3-phase systems. The unit features a bolt-on connection and weighs 4 lb, integrating LI (Long-Time and Instantaneous) protection functions for precise fault response. This breaker complies with industry standards for industrial power distribution and motor control applications. It is typically used in panelboards, switchboards, and commercial or light industrial electrical systems requiring reliable short-circuit and overload protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QJH Series, Thermal Magnetic
  • Voltage Rating: 240V AC
  • Current Rating: 90A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 42kA@240V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic, LI (Long-Time and Instantaneous)
  • Weight: 4 lb
  • Functions: LI - Long-Time and Instantaneous
  • Family: QJH Series
  • Item Subcategory: Molded Case


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