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Siemens QJ3B175 - Molded Case 175A 240V 3-Pole Breaker

Siemens
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The Siemens QJ3B175 is a molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It features a 175A current rating and a 240V voltage rating, with a 10kA interrupting capacity at 240V, and provides LI (Long-Time and Instantaneous) protection through a thermal magnetic trip mechanism. This three-pole breaker weighs 4 lb and utilizes a bolt-on connection for secure installation within compatible panelboards. It is part of the QJ Series and complies with applicable industry standards for electrical safety and performance. Typical applications include protecting branch circuits in commercial and industrial settings where reliable overcurrent protection is required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 240V
  • Current Rating: 175A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 10kA@240V
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • Weight: 4 lb
  • Family: QJ Series


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