Overcurrent circuit breaker, 3P, C characteristic, 20A, 10kA, AC | S203M-C20 2CDS273001R0204

Reliable protection of electrical installations with the ABB S203M-C20 circuit breaker.

This three-pole circuit breaker with characteristic C is a key element of every safe and reliable electrical installation. Designed by the renowned company ABB, it provides effective protection against overloads and short circuits in circuits with a rated current of 20A. Its compact dimensions (width 3 modules, depth 69 mm) facilitate mounting on a DIN rail, and the high short-circuit breaking capacity (up to 10kA at 400V AC) guarantees safety in the event of a failure.

Universal application and compliance with standards

The S203M-C20 circuit breaker is used in residential, commercial and industrial installations. It meets the requirements of EN 60898-1 and EN 60947-2 standards, confirming its high quality and reliability. Characteristic C makes it ideal for circuits with devices generating inrush currents during start-up – e.g. motors or transformers. This ensures that the circuit breaker does not trip unnecessarily during normal operation of the devices, while effectively reacting to a real short-circuit or overload hazard.

Key features and benefits for professionals and users

• High short-circuit breaking capacity: up to 10kA at 400V AC and 15kA (Icu) at 400V according to IEC 60947-2 – ensures the safety of the installation in the event of serious failures.
• Characteristic C: delayed tripping time allows for trouble-free start-up of devices generating inrush currents, minimizing the risk of false tripping.
• Compact dimensions: only 3 modules wide makes it easy to install in switchboards with limited space.
• Wide range of wire cross-sections: the possibility of connecting solid wires with a cross-section from 0.75 to 35 mm² and stranded wires from 0.75 to 25 mm² provides installation flexibility.
• Durable construction: made of high-quality materials guarantees long life and reliable operation in a wide range of ambient temperatures (-25°C to +55°C).
• Compliance with standards: meeting the requirements of EN 60898-1 and EN 60947-2 standards ensures reliable operation and safety of use.
• Energy limitation class: Class 3 provides adequate protection against the effects of short circuits.
• Rated insulation voltage Ui: up to 440V AC increases the safety of the device.

The S203M-C20 circuit breaker is an investment in safety and peace of mind – for both the installer and the end user. It provides reliable protection of the electrical installation against the effects of overloads and short circuits, minimizing the risk of failures and fires.