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Siemens FD63B250L - Molded Case Circuit Breaker 250A 600V 3P

Siemens
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Siemens FD63B250L is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 250A current rating and a 600V AC voltage rating, housed within a compact FD frame measuring 10.63 x 5.906 x 6.693 inches (270 x 150 x 170 mm) and weighing 10.031 lb. The breaker is UL, CSA, and IEC certified and utilizes a thermal-magnetic trip unit with long-time and instantaneous (LI) protection functions for coordinated system safety. It is engineered for compatibility with various panel types including S4, P4, SPP, and F2, making it suitable for use in industrial control panels, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Feed-Thru Connection
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Frame Size: FD Frame
  • Poles: 3
  • AIC Rating: 35kA at 480V AC
  • Phase: 3
  • Functions: Long-Time and Instantaneous (LI)
  • Connection: Feed-Thru
  • Wire Size: 6 AWG - 350 KCMIL (Copper) / 4 AWG - 350 KCMIL (Aluminum)
  • Certification: UL, CSA, IEC
  • Operating Temperature: -25°C to +70°C (-13°F to 158°F)
  • Dimensions: 10.63 x 5.906 x 6.693 in (270 x 150 x 170 mm)
  • Weight: 10.031 lb (4.55 kg)
  • Panel Type Compatibility: S4, P4, SPP, F1, FC1, FCII, CDP-5, CDP-6, SB1-3, S5, P5, SPP/FPP, F2
  • Additional Info: Includes line and load side lugs (TA1FD350A)


Product Identification
  • UPC: 783643005358
  • GTIN: 00783643005358