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Siemens QJ3B125L - 3-Pole 125A Molded Case Circuit Breaker

Siemens
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Siemens QJ3B125L is a three-pole molded case circuit breaker designed for thermal-magnetic overcurrent protection in industrial power distribution systems. It is rated for 125A at 240V AC with a 10kA interrupting capacity, providing long-time and instantaneous (LI) protection functions. The unit weighs 4 lb and features a feed-thru connection configuration for straightforward installation in compatible panelboards. This breaker complies with industry standards for molded case circuit breakers and is suitable for three-phase applications requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QJ Series
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 10kA@240V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Feed-Thru
  • Weight: 4 lb
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Feed-Thru
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: QJ Frame
  • Installation Type: Panelboard Mount
  • Item QTY: 1
  • Breaker Frame: QJ
  • Current Rating: 125A
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not provided
  • GTIN: Not provided