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ABB S203-R55 - MCB 55A 10kA 1P

United Fuses
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ABB S203-R55 is a miniature circuit breaker designed for overcurrent protection in electrical installations. It is rated for a voltage of 230/400 V AC and a current of 55 A, with a breaking capacity of 10 kA. The device features a compact modular construction with a weight of 5.19 lb, suitable for DIN rail mounting. It complies with IEC/EN 60898-1 standards for residential and commercial applications. Typical uses include branch circuit protection in distribution boards and industrial control panels.

Key Features & Specifications
  • Type: Miniature Circuit Breaker (MCB)
  • Voltage Rating: 230/400 V AC
  • Current Rating: 55 A
  • Breaking Capacity: 10 kA
  • Poles: 1P
  • Trip Type: Thermal-magnetic
  • Mounting: DIN rail
  • Standards: IEC/EN 60898-1
  • Weight: 5.19 lb


Product Identification
  • Model: S203-R55
  • Part Number: 2CDS203001R0557