Overcurrent circuit breaker S 303 3P D 2A 6000A TX3 403748

Electrical installation protection with Legrand S 303 TX³ circuit breaker

The S 303 circuit breaker is a reliable element protecting electrical installations from the effects of overloads and short circuits. Designed by Legrand, a leader in electro-installation solutions, this three-pole circuit breaker with D characteristic provides effective protection in demanding applications. Designed for mounting on a TH35 rail, it is ideal for both professional installers and end-users looking for a safe and efficient solution.

### Functionality and technical parameters

The S 303 circuit breaker from the TX³ series is distinguished by its high short-circuit capacity, amounting to 6 kA at 400 V and 10 kA at 230 V. The D characteristic ensures delayed tripping during short-term overloads, which is particularly important for devices with motors or other pulsed loads. The rated current of 2 A makes this circuit breaker perfect for circuits with lower current consumption. The rated voltage of 400 V AC and the insulation voltage of 500 V guarantee safe use.

Additionally, the circuit breaker has a protection degree of IP20, which means protection against accidental contact and the ingress of solid objects larger than 12.5 mm. Its compact dimensions – width of 3 modules (52.5 mm) and depth of 44 mm – allow for easy installation even in tight switchboards. The possibility of additional equipment, e.g. auxiliary contacts or releases, increases its functionality and allows it to be adapted to individual installation needs.

### Advantages for the installer and end-user

* **Quick and easy installation:** Lower clips and terminal covers facilitate and speed up the installation and connection of wires.

• High reliability: Made of high-quality materials, the circuit breaker ensures long-lasting and trouble-free operation.

• Versatility: Wide range of applications – from home installations to commercial facilities – thanks to the variety of available rated currents and tripping characteristics.

• Safety: Provides effective protection against overloads and short circuits, minimizing the risk of damage to equipment and fires.

• Compatibility: Can be used with DX³ series auxiliary devices, allowing for expansion of the protection system functionality.

• Durability: Mechanical endurance of 20,000 switching cycles guarantees long device life.

• Compliance with standards: Meets the requirements of EN 60898-1 and EN 60947-2 standards, ensuring safety and compliance with regulations.