2CDS273061R0014 ABB S203M-C1UC 1A 3-Pole Type C Miniature Circuit Breaker 10kA

Why Choose the ABB S203M-C1UC Miniature Circuit Breaker?

The ABB S203M-C1UC is a specialised 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in demanding DC, traction and industrial applications. As part of the ABB S 200 M series, it provides dependable overcurrent protection for low-current circuits where robust and reliable fault protection is required.

This miniature circuit breaker features a Type C tripping characteristic, providing reliable fault protection while accommodating moderate transient and inrush currents that can occur during normal equipment operation. Its three-pole configuration enables coordinated switching and protection across three conductors, making it suitable for multi-pole distribution and equipment circuits.

With a rated current of 1 A and a 10 kA short-circuit breaking capacity, the S203M-C1UC provides robust protection for low-current electrical circuits and connected equipment. Its UC configuration makes it suitable for applications within ABB's DC and traction circuit protection range.

Key Advantages

• Specialised miniature circuit breaker for DC and traction applications.
• 1 A rated current for low-current circuit protection.
• 3-pole configuration for coordinated protection of three conductors.
• Type C tripping characteristic suitable for circuits with moderate transient currents.
• 10 kA short-circuit breaking capacity for robust fault protection.
• Designed to protect electrical circuits against overloads and short circuits.
• Part of ABB's established S 200 M miniature circuit breaker range.
• Suitable for demanding traction, control and industrial electrical systems.

Key Features

• ABB S 200 M series miniature circuit breaker.
• 1 A rated current.
• 3-pole configuration.
• C characteristic tripping curve.
• 10 kA short-circuit breaking capacity.
• Designed for dependable overcurrent circuit protection.
• Protection against overload and short-circuit conditions.
• Suitable for DC and traction electrical applications.
• Type C characteristic provides tolerance of moderate normal inrush currents.
• Compact modular construction for electrical distribution assemblies.

Reliable Circuit Protection for Demanding Electrical Systems

Miniature circuit breakers such as the ABB S203M-C1UC automatically interrupt excessive current caused by overload or short-circuit conditions, helping protect conductors, connected equipment and electrical distribution systems from damaging fault currents. Once the underlying fault has been identified and corrected, the circuit breaker can be reset for continued operation.

The Type C characteristic makes the S203M-C1UC suitable for circuits where moderate transient currents may occur during normal operation. Combined with its 1 A rating, three-pole construction and 10 kA breaking capacity, it provides a practical protection solution for low-current control, auxiliary and distribution circuits in demanding electrical installations.

Typical Applications

• Rolling stock electrical systems.
• Traction electrical equipment.
• Low-current auxiliary circuits.
• Control and signalling circuits.
• Industrial automation circuits.
• Electrical control panels.
• Distribution assemblies.
• Equipment requiring 1 A Type C overcurrent protection.