Overcurrent circuit breaker, 3P, B characteristic, 2A, 6kA, AC | S203-B2 2CDS253001R0025

Protection of installations and devices – S203 series circuit breaker

This three-pole circuit breaker is a key element of every safe and reliable electrical installation. Designed to protect circuits against overloads and short circuits, it ensures safety for both the installation and connected devices. It is characterized by high efficiency and compact size, which facilitates installation in distribution boards.

The S203-B2 circuit breaker with a rated current of 2A and B characteristic is ideal for applications requiring a quick response to current increase. Characteristic B means that the circuit breaker reacts quickly to short-term current surges, which is particularly important in circuits with devices with high inrush current – e.g. motors. The rated short-circuit breaking capacity of 6kA (at 400V) guarantees effective disconnection of the circuit in the event of a serious failure.

• Versatile application: Suitable for protecting lighting circuits, socket outlets and other electrical receivers.
• Compact dimensions: Width of 3 modules allows for efficient use of space in the distribution board.
• Wide operating temperature range: Trouble-free operation at temperatures from -25°C to 55°C.
• Installation flexibility: Possibility of system expansion thanks to compatibility with additional accessories.
• Safety confirmed by standards: Compliance with IEC 60947-2 and EN 60898 standards ensures a high level of safety.

This circuit breaker has a protection degree of IP20, which means protection against contact with fingers and against the ingress of solid objects larger than 12.5 mm. The cross-section of the connected single-wire conductor is 0.75…35 mm², and the multi-wire conductor is 0.75…25 mm², which provides a great freedom in choosing cables tailored to specific installation needs. The rated insulation voltage Ui is 440V and the rated impulse withstand voltage Uimp is 4kV. The energy limitation class is 3, which proves its ability to withstand energy generated during a short circuit. Power losses are 5.4W.