S203-C50 overcurrent circuit breaker 2CDS253001R0504

Overcurrent circuit breaker S203-C50 is a three-pole protection device designed to protect electrical installations against overload and short circuit. It is characterized by a rated current of 50A and energy limitation class 3, making it a suitable choice for various applications, including installations with heat pumps.

Protection and reliability in every circuit

This ABB circuit breaker from the Standard series is a solid solution for installers and users looking for reliable protection. Characteristic C ensures that the circuit breaker reacts quickly to short circuits, but at the same time tolerates short-term current surges that may occur during the starting of devices with a motor – such as pumps or compressors. The rated short-circuit breaking capacity of 6kA at 400V and 10kA at 230V guarantees effective disconnection of the circuit in the event of a failure, minimizing the risk of damage and fire.

Installation and compatibility

The S203-C50 circuit breaker occupies 3 modules in width, which facilitates its installation in standard distribution boards. It is adapted for single-wire conductors with a cross-section of 0.75 mm² to 35 mm² and multi-wire conductors from 0.75 mm² to 25 mm². The degree of protection IP20 means that it is protected against finger contact, but is not resistant to water ingress – therefore it should be mounted in dry rooms. Rated voltage 400V and rated impulse withstand voltage Uimp at 4kV ensure compatibility with most electrical installations.

• Versatility: Suitable for protecting various circuits, including those powering heat pumps.
• Safety: Provides effective protection against overload and short circuit.
• Efficiency: Characteristic C allows for trouble-free starting of devices with a motor.
• Easy installation: Compact dimensions (3 modules) facilitate installation in a distribution board.
• Wide range of applications: Adapted for conductors of various cross-sections (up to 35mm²).
• Durability: Manufactured by the renowned manufacturer ABB, guarantees long-lasting and trouble-free operation in the temperature range from -25°C to +55°C.