2CDS273065R0034 ABB S203MT-C3UC 3 A 3-Pole Type C 10 kA Miniature Circuit Breaker

Why Choose the ABB S203MT-C3UC Miniature Circuit Breaker?

The ABB S203MT-C3UC is a high-performance three-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in AC and DC electrical systems. As part of the ABB S200 MT UC universal-current range, it is engineered for demanding industrial and traction applications requiring reliable protection across both alternating-current and direct-current circuits.

This circuit breaker has a rated current of 3 A, a C tripping characteristic and a rated short-circuit breaking capacity of 10 kA. The C characteristic provides effective protection for general-purpose circuits and loads with moderate inrush currents, while its three-pole configuration enables coordinated protection of three conductors.

With universal-current capability and a rated operational voltage of up to 440 V AC / 440 V DC, the S203MT-C3UC is suitable for specialised electrical distribution, control and traction systems. Its compact modular construction and standard DIN rail format enable straightforward integration into professional electrical panels and control cabinets.

Key Advantages

• High-performance three-pole miniature circuit breaker for AC and DC applications.
• 3 A rated current for lower-current control and distribution circuits.
• 10 kA short-circuit breaking capacity for robust fault protection.
• C tripping characteristic suitable for general-purpose circuits and moderate inrush currents.
• Universal-current UC design for AC and DC circuits.
• Compact modular format for straightforward DIN rail installation.

Key Features

• ABB S200 MT UC universal-current series.
• Three-pole configuration.
• 3 A rated current.
• C tripping characteristic.
• 10 kA breaking capacity.
• Designed for AC and DC circuit protection.
• Rated operational voltage up to 440 V AC / 440 V DC.
• 4 kV rated impulse withstand voltage.
• Standard DIN rail mounting.
• ABB order code 2CDS273065R0034.

Reliable AC and DC Circuit Protection

Miniature circuit breakers such as the ABB S203MT-C3UC automatically interrupt a circuit when excessive current occurs because of an overload or short circuit. This helps protect conductors and connected electrical equipment while providing a convenient means of switching and isolating the protected circuit.

The ABB S200 MT UC range is designed for universal-current applications where dependable protection is required on AC or DC systems. The S203MT-C3UC combines three-pole protection, a 3 A current rating, C characteristic and 10 kA breaking capacity in a compact modular device suitable for industrial, control and traction electrical installations.

Typical Applications

• DC and traction electrical systems.
• Industrial electrical distribution boards.
• Control and automation circuits.
• Industrial machinery and equipment panels.
• Three-pole AC and DC protection circuits.
• Control cabinets and modular DIN rail assemblies.