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Siemens QJ3B125A01 - Molded Case 125A 3-Pole (240V Thermal Magnetic)

Siemens
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Siemens QJ3B125A01 Circuit Breaker - Molded Case 125A 3-Pole (240V Thermal Magnetic) The Siemens QJ3B125A01 is a 3-pole molded case circuit breaker from the QJ Series, designed for overcurrent protection in industrial power distribution systems. It provides LI (Long-Time and Instantaneous) protection functions with a thermal magnetic trip mechanism, rated at 240V AC and 125A continuous current. This bolt-on breaker features a compact construction weighing 4 lb, with a 10kA interrupting capacity at 240V for 3-phase applications. It complies with industry standards for molded case circuit breakers, ensuring reliable performance in switchboards and panelboards. Typical applications include motor control centers, lighting panels, and feeder circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QJ Series, Thermal Magnetic
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 10kA@240V
  • Weight: 4 lb
  • Functions: Long-Time and Instantaneous trip
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Industrial power distribution, motor control, feeder circuits
  • Installation Type: Bolt-On
  • Breaker Frame: QJ
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Compatible Frames: QJ Series
  • Item QTY: 1


Product Identification
  • UPC: 783643123456
  • GTIN: 00783643123456