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Siemens QJ3M175H - 3-Pole 175A Molded Case Breaker

Siemens
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Siemens QJ3M175H 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, 175A continuous current, and a 42kA interrupting capacity at 240V, with a thermal magnetic trip mechanism for reliable overcurrent protection. This bolt-on breaker weighs 4 lb and is constructed for 3-phase applications, featuring a compact molded case design for panelboard integration. It complies with industry standards for industrial and commercial power distribution, ensuring robust circuit isolation and fault interruption. Typical applications include protecting feeders, branch circuits, and equipment in manufacturing plants, data centers, and commercial buildings requiring high fault current ratings.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QJH Series, Thermal Magnetic
  • Voltage Rating: 240V AC
  • Current Rating: 175A
  • 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 compliant
  • Applications: Industrial and commercial power distribution, feeder and branch circuit protection


Product Identification
  • Manufacturer: Siemens
  • Model: QJ3M175H
  • Family: QJH Series
  • Subcategory: Molded Case