Circuit breaker S 311 1P C 25A 10000A TX3 404173

Electrical installation protection with S 311 TX³ series circuit breakers

The S 311 1P C 25A circuit breaker is an element used to protect electrical circuits against the effects of overloads and short circuits. It belongs to the advanced TX³ series, which is distinguished by its simple installation and high reliability. The device is intended for both professional installers and end users, providing safety and comfort of use.

Characteristics and application

The S 311 circuit breaker is characterized by a C characteristic, which means that it reacts with a delay to short-term current surges. This makes it ideal for circuits with receivers with high inrush current, e.g. electric motors. The rated current of 25A and the short-circuit breaking capacity at 10kA (at 230V and 400V) guarantee effective protection of the installation under typical operating conditions. Installation is carried out on a TH35 rail, which facilitates integration with the existing electrical system.

Construction and product features

The circuit breaker has been designed with ease of installation and operation in mind. Compact dimensions (1 module width) allow for efficient use of space in the switchgear cabinet. The IP20 degree of protection provides basic protection against accidental contact. Made of high-quality materials, the circuit breaker is durable and resistant to mechanical damage. In addition, the ability to cooperate with various auxiliary devices (auxiliary contacts, releases) allows for expanding the functionality of the protection system. The energy limitation class is 3, which indicates its ability to withstand short-circuit energy. The rated voltage is 230 V with insulation Ui at 500 V and the rated impulse withstand voltage Uimp is 4 kV.