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Siemens QJ2M125 - Molded Case Circuit Breaker 125A 2-Pole

Siemens
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Siemens QJ2M125 is a 2-pole, 125A molded case circuit breaker from the QJ Series, designed for overcurrent protection in residential and light commercial load center applications. It operates at 120/240 VAC with a 10 kA interrupt rating, utilizing a thermal-magnetic trip unit for LI (Long-Time and Instantaneous) protection functions. The breaker features a bolt-on connection, weighs 3 lb, and is built for single-phase systems. It is UL Listed and HACR Rated, meeting industry standards for reliable circuit protection. This breaker is commonly used in residential and HVAC applications requiring dependable overcurrent protection.

Key Features & Specifications
  • Manufacturer: Siemens
  • Item Subcategory: Molded Case
  • Family: QJ Series
  • Type: QJ
  • Weight: 3 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 240V
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@240V
  • Phase: 1
  • Current Rating: 125A
  • Part Number: QJ2M125
  • Series/Frame: QJ
  • Amperage Rating: 125 A
  • Voltage Rating: 120/240 VAC
  • Interrupt Rating: 10 kA
  • Mounting Type: Plug-In
  • Connection Type: Lug Terminal
  • Wire Size: 5 - 1/0 AWG
  • Temperature Rating: 40 °C
  • Standards: UL Listed, HACR Rated