Overcurrent circuit breaker S 303 3P D 3 A 6000 A series TX3 403749

Reliable protection for electrical installations – Legrand TX³ circuit breaker

This three-pole TX³ series circuit breaker is a key component ensuring safety in every electrical installation. Designed to protect against the effects of overloads and short circuits, it offers high reliability and easy installation. A rated current of 3A makes it an ideal solution for low-current circuits, while the D characteristic ensures effective protection without unnecessary tripping during brief load surges.

Design and specifications for professionals

The S 303 3P D circuit breaker with a rated current of 3A and a short-circuit breaking capacity of up to 6 kA (at 400V) and 10 kA (at 230V) complies with EN 60898-1 and EN 60947-2 standards. Its compact dimensions – 3 modules wide and 44 mm deep for flush mounting – enable easy installation in distribution boards. The IP20 protection rating provides basic protection against accidental contact. Constructed from high-quality materials, it guarantees long-term, fault-free operation. The rated insulation voltage Ui is 500 V, and the rated impulse withstand voltage Uimp reaches up to 4 kV, confirming its high resistance to voltage surges.

Easy installation and versatility

The TX³ series features a thoughtfully designed construction that simplifies both mounting and wiring connections. The bottom clip and shielded terminals are features highly valued by installers. Compatibility with additional auxiliary devices – such as auxiliary contacts, undervoltage releases, or remote drives – enhances the breaker’s functionality and allows customization to meet specific installation requirements. Surface mounting further improves the aesthetic finish.