Overcurrent circuit breaker, 4P, C characteristic, 20A, 10kA, AC | S204M-C20 2CDS274001R0204

Reliable protection of electrical installations – ABB S204M-C20 circuit breaker

This four-pole circuit breaker with C characteristic is a key element of protection in every electrical installation. Designed for both domestic and professional applications, it provides effective protection against overloads and short circuits. Thanks to its high short-circuit breaking capacity (up to 10kA), it guarantees the safety of devices and installations in the event of a failure. Mounting on a DIN rail is quick and intuitive, which will be appreciated by installers.

Functionality and technical parameters

The S204M-C20 circuit breaker is characterized by a rated current of 20A and is designed to operate in networks with a voltage of 400V. The C characteristic means that the circuit breaker reacts with a delay to short-term current surges, which is particularly important when connecting devices with induction motors or other loads with high inrush current – this allows to avoid unnecessary tripping of the circuit during normal operation. Short-circuit capacity up to 25kA at 230V and 15kA at 400V provides a high level of safety in the event of a short circuit.

• Versatile application: ideal for protecting lighting circuits, socket circuits and electrical appliances.
• High reliability: made of high-quality materials, guarantees long-lasting and trouble-free operation.
• Compact dimensions: width of 4 modules makes it easy to install in switchboards with limited space.
• Wide operating temperature range: from -25°C to +55°C allows use in various environmental conditions.
• Compliance with standards: meets the requirements of EN 60898 and IEC 60947-2 standards, ensuring safety and compliance with regulations.
• Conductor cross-sections: accepts solid conductors with a cross-section from 0.75 mm² to 35 mm² and stranded conductors from 0.75 mm² to 25 mm².

Construction and mounting

The circuit breaker has a protection degree of IP20, which means protection against touching with a finger and against the ingress of solid objects larger than 12.5 mm. Mounting is done on a standard DIN rail, which significantly speeds up the installation process. Additionally, the possibility of mounting additional equipment allows you to adapt the circuit breaker to individual user needs. The energy limitation class is 3, which indicates its ability to withstand high short-circuit energies. Power losses are only 10W, which translates to energy efficiency of the installation.