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Siemens QT2-4040 - 2-Pole 40A Thermal Magnetic Breaker (240V)

Siemens
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Siemens QT2-4040 Circuit Breaker is a molded case circuit breaker designed for overcurrent protection in residential and light commercial applications. This 2-pole, 40A unit operates at 240V with a 10kA interrupting capacity, utilizing thermal magnetic protection for LI (Long-Time and Instantaneous) trip functions. The bolt-on connection ensures secure installation within compatible load centers, with a compact 1 lb weight for easy handling. It complies with UL standards for safety and reliability in branch circuit protection. This breaker is typically used in single-phase systems for protecting lighting, appliance, and general-purpose circuits.

Key Features & Specifications
  • Type: Molded Case, QT Series, Thermal Magnetic
  • Voltage Rating: 240V
  • Current Rating: 40A
  • Poles: 2
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC rating: 10kA@240V
  • Phase: 1
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 1 lb