Circuit breaker S 301 1P B 40A 6000A TX3 403361

Overcurrent circuit breaker from the S 300 TX³ series is a reliable protection for electrical installations against the effects of overloads and short circuits. Designed for mounting on a TH35 rail, it provides effective protection in circuits with a voltage of 230 V. This single-pole circuit breaker with a rated current of 40A and a B characteristic is ideal for both home and commercial installations.

Application and functionality

Circuit breakers from the S 300 series are characterized by compact dimensions – they occupy only one module on the TH35 rail, which allows for optimal use of space in the switchgear cabinet. Thanks to the possibility of cooperation with additional auxiliary equipment, such as auxiliary contacts or release devices, it can be adapted to the specific needs of the installation. Mounting is simple and convenient thanks to the bottom latch and terminal covers.

Technical parameters and safety

This circuit breaker has a breaking capacity of 6 kA at 230 V and 6 kA at 400 V, which guarantees a quick and effective response in the event of a short circuit. The B characteristic ensures fast tripping in case of overloads, and also allows for short-term shock loads without unnecessary disconnection of the circuit – which is particularly important when connecting devices with electric motors. The IP20 degree of protection protects against touching with fingers and against the ingress of solid objects larger than 12.5 mm. The rated insulation voltage is 500 V, and the rated impulse withstand voltage is 4 kV, which ensures a high level of safety.

Constructional features

The circuit breaker is made of high-quality materials, which ensures its durability and reliability. The possibility of flush mounting increases the aesthetics of the installation. Compliance with IEC/EN 60898-1 and IEC/EN 60947-2 standards confirms its safety and compliance with applicable regulations. The energy limitation class is 3, which means that the circuit breaker is intended for use in installations with medium short-circuit energy.