Circuit breaker S 303 3P B 6A 6000A TX3 403398

Reliable protection of electrical installations – Legrand S 303 TX³ circuit breaker

The S 303 TX³ circuit breaker is a key element of every electrical installation, providing effective protection against the effects of overloads and short circuits. This model, with a rated current of 6A and B characteristic, is perfect for both home and commercial installations. The three-pole design guarantees comprehensive circuit protection.

Construction and technical parameters

The S 303 TX³ circuit breaker is characterized by a compact design – it takes up only 3 modules on a TH35 rail. The rated short-circuit breaking capacity (Icn) is 6 kA at 400 V and 10 kA at 230 V, ensuring a quick response in emergency situations. The rated insulation voltage Ui is 500 V, and the rated impulse withstand voltage Uimp is as high as 4 kV. Protection class IP20 provides basic protection against contact and ingress of solid objects. The B characteristic means that the circuit breaker reacts quickly to an increase in short-circuit current, but tolerates short-term inrush currents, which is particularly important when connecting devices with motors.

Installation and compatibility

TX³ series circuit breakers are distinguished by ease of installation thanks to the lower latch and terminal covers. The possibility of additional equipment – auxiliary contacts, undervoltage releases or remote drives – allows you to adapt the circuit breaker to the specific needs of the installation. Importantly, the TX³ series is compatible with the DX³ series, providing flexibility in the design and expansion of protection systems. Installation is done on a standard TH35 rail.