S201-Z4 overcurrent circuit breaker 2CDS251001R0338

Overcurrent circuit breaker S201-Z4 is a protective element for electrical installations against the effects of overloads and short circuits. Thanks to its Z characteristic, the device provides effective protection for circuits, especially those with devices generating surge currents, such as motors or transformers. This is crucial for ensuring continuity of operation and user safety.

Protection and functionality

The S201-Z4 circuit breaker is designed to operate in installations with a rated voltage of 230 V, offering a rated current of 4 A. Its construction ensures high reliability and long service life. The rated short-circuit breaking capacity (Icn) is 6 kA at 230 V and 6 kA at 400 V, and the Icu capacity reaches 10 kA at both 230 V and 400 V – guaranteeing effective disconnection of the circuit in the event of a failure. The IP20 protection degree indicates protection against finger contact, which is important from the point of view of user safety.

Mounting and application

The S201-Z4 circuit breaker is designed for mounting on a DIN rail, occupying a width of one module (18 mm). It accepts cross-sections of solid conductors from 0.75 mm² to 35 mm² and stranded conductors from 0.75 mm² to 25 mm². This allows it to be easily adapted to different types of electrical installations. The ambient temperature in operating conditions is in the range of -25°C to +55°C, which allows its use in a wide range of environmental conditions. Additional possibility of expansion with accessories increases its functionality and flexibility.

Characteristics and compliance with standards

The Z tripping characteristic means a delayed reaction time to current increase, which is particularly important for devices generating short-term overloads – such as electric motors or transformers. The circuit breaker meets the requirements of EN 60898 and IEC 60947-2 standards, confirming its compliance with European safety standards. The rated insulation voltage Ui is 440 V and the rated impulse withstand voltage Uimp is 4 kV. The energy limitation class is 3 and the surge category is III.