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Siemens Q21540CT - Molded Case Circuit Breaker, 40A 2-Pole

Siemens
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Siemens Q21540CT is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 40A current rating and a 240V AC voltage rating, suitable for single-phase applications. The compact unit measures 2.756" x 1.969" x 2.756" and weighs 0.728 lb, utilizing a plug-in connection for simplified installation within compatible panelboards. This thermal-magnetic breaker complies with industry standards for safety and performance, offering 10kA interrupting capacity at 240V AC. Its typical applications include protecting feeder and branch circuits in machinery, HVAC systems, and lighting panels.

Key Features & Specifications
  • Type: QT Series Molded Case Circuit Breaker with Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Dimensions: 2.756" H x 1.969" W x 2.756" D (70mm x 50mm x 70mm)
  • Standards: Designed to meet applicable UL and IEC standards
  • Applications: Industrial control panels, commercial distribution, machinery
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 1
  • Amperage: 40A
  • AIC Rating: 10kA @ 240V AC
  • Connection: Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: Q Series
  • Trip Type: Thermal Magnetic
  • Breaker Type: Molded Case
  • Mounting: Plug-In to Panelboard
  • Country of Origin: Mexico
  • Weight: 0.728 lb


Product Identification
  • UPC: 078364497
  • GTIN: 7.83643E+11