Circuit breaker S 303 3P C 40A 6000A TX3 403549

Robust protection of electrical installations with Legrand S 303 TX³ circuit breaker

The S 303 TX³ series circuit breaker is a reliable solution for protecting electrical circuits against the effects of overloads and short circuits. Designed for both domestic and professional applications, it ensures safe and long-lasting operation of the installation. This three-pole circuit breaker with a rated current of 40A and a C characteristic guarantees protection for your devices and peace of mind.

Functionality and installation

The S 303 TX³ circuit breaker is characterized by easy mounting on a TH35 rail. Compact dimensions – a width of 3 modules – allow for efficient use of space in the distribution board. The bottom latch and terminal covers facilitate wiring, reducing installation time. The ability to cooperate with additional equipment, such as auxiliary contacts or release devices, expands the functionality of the device and allows it to be adapted to individual needs.

Safety and technical parameters

The circuit breaker meets the requirements of EN 60898 and EN 60947 standards, ensuring high quality and safety of use. The rated short-circuit breaking capacity (Icn) is 6 kA at 400 V and 10 kA at 230 V, which guarantees effective protection in the event of a failure. The C characteristic provides delayed tripping during short-term overloads, which is particularly important for devices with motors or other elements generating high starting current. The energy limitation class is 3, which means high resistance to short-circuit energy. The degree of protection is IP20, providing protection against accidental contact. The rated voltage is 400V and the insulation 500V. The circuit breaker operates in the frequency range from 50 to 60 Hz.