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Siemens QJ3B090H - Molded Case Circuit Breaker 90A 240V

Siemens
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Siemens QJ3B090H is a 3-pole molded case circuit breaker from the QJH Series, designed to provide LI (Long-Time and Instantaneous) protection for electrical systems. It is rated for 240V AC, 90A, and 42kA interrupting capacity at 240V, with a thermal magnetic trip mechanism for reliable overcurrent protection. The unit weighs 4 lb, features a bolt-on connection, and is built for 3-phase applications. It complies with industry standards for industrial power distribution and motor control. This breaker is commonly used in panelboards, switchboards, and industrial machinery requiring robust circuit 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: LI - Long-Time and Instantaneous
  • Functions: Overcurrent and short-circuit protection
  • Weight: 4 lb
  • Standards: UL, CSA, NEMA
  • Applications: Industrial panelboards, switchboards, motor control centers


Product Identification
  • Manufacturer: Siemens
  • Model: QJ3B090H
  • Family: QJH Series
  • Item Subcategory: Molded Case