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Siemens QJ3B125HA02 - Molded Case Breaker 125A 240V 3-Pole

Siemens
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Siemens QJ3B125HA02 is a 3-pole molded case circuit breaker from the QJH Series, designed to provide overcurrent protection through its LI (Long-Time and Instantaneous) trip functions. It is rated for 240V AC, 125A continuous current, and delivers a 42kA interrupting capacity at 240V, ensuring robust fault clearance in industrial power distribution systems. This bolt-on unit features thermal-magnetic protection, weighs 4 lb, and is constructed for secure panel mounting in three-phase applications. The breaker complies with industry standards for molded case circuit breakers, making it suitable for protecting branch circuits and equipment in commercial and light industrial environments. Typical applications include motor control centers, panelboards, and switchboards requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QJH 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: 42kA@240V
  • Weight: 4 lb
  • Functions: Long-Time and Instantaneous Trip
  • Family: QJH Series
  • Item Subcategory: Molded Case