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Siemens QJ3B175HL - 3-Pole 175A Molded Case Breaker (240V, 42kA AIC)

Siemens
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Siemens QJ3B175HL is a three-pole molded case circuit breaker from the QJH Series, designed to provide LI (Long-Time and Instantaneous) thermal magnetic protection for electrical systems. This 175A rated breaker operates at 240V with a 42kA interrupting capacity at 240V, utilizing a feed-thru connection for three-phase applications. The unit weighs 4 lb and features a compact molded case construction for panelboard installation. It complies with industry standards for overcurrent protection in commercial and industrial power distribution systems. Typical applications include branch circuit protection in switchboards, panelboards, and motor control centers where reliable thermal magnetic trip characteristics are required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QJH Series, Thermal Magnetic
  • Voltage Rating: 240V
  • Current Rating: 175A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 42kA@240V
  • Connection: Feed-Thru
  • Protection: LI - Long-Time and Instantaneous
  • Weight: 4 lb
  • Functions: LI - Long-Time and Instantaneous
  • Breaker Type: QJH
  • Item Subcategory: Molded Case
  • Family: QJH Series