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Siemens Q21550CT - QT Breaker 50A 240V 1P (10kA AIC)

Siemens
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Siemens Q21550CT is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in electrical distribution systems. It features a 50A current rating and a 240V AC voltage rating, suitable for single-phase applications, and is constructed with a compact, plug-in design measuring 12.598 x 3.543 x 3.15 inches and weighing 0.75 lb for efficient panel integration. This thermal magnetic breaker complies with the UL 489 standard, ensuring safe interruption of faults with an interrupting capacity of 10kA at 240V. Its typical applications include protecting feeder and branch circuits in industrial control panels, commercial buildings, and machinery.

Key Features & Specifications
  • Type: QT Series, Molded Case, Thermal Magnetic Protection with Long Time and Instantaneous Trip Functions
  • Voltage Rating: 240V AC
  • Current Rating: 50A
  • Dimensions: 12.598" H x 3.543" W x 3.15" D (320mm x 90mm x 80mm)
  • Standards: UL 489
  • Applications: Industrial control panels, commercial electrical distribution, machinery circuit protection
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: QT
  • Breaker Type: QT
  • Terminal Connection: Plug-In
  • Certification: UL 489
  • Family: Q Series
  • Country of Origin: Mexico
  • Weight: 0.75 lb


Product Identification
  • UPC: 078364319498
  • GTIN: 00783643194984