Overcurrent breaker S 301 1P D 40 A 6000 A, TX3 series 403725
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Sales unit dimensions and weight: 1 pcs
Overcurrent breaker S 301 1P D 40 A 6000 A, TX3 series 403725
Reliable protection for electrical installations with Legrand S 301 TX3 overcurrent breaker
This single-pole overcurrent breaker from the TX³ series is a critical component ensuring safety in every electrical installation. Designed for both residential and demanding professional applications, it effectively protects circuits against the consequences of overloads and short circuits. The D characteristic provides delayed tripping, which is especially important when handling devices with high inrush currents, such as motors or transformers.
The S 301 40A breaker is an ideal solution for installations operating at 230V with a rated current of 40A. Its compact dimensions — just one module wide (44 mm depth) — allow for easy installation in distribution boards, even in space-constrained environments. The rated short-circuit breaking capacity of 6 kA ensures effective protection in the event of a fault.
Design and installation — simplicity for professionals and users
The TX³ series features a thoughtful design that simplifies both installation and subsequent wiring. The bottom clip and shielded terminals are solutions highly valued by installers for their speed and ease of use. The option for surface mounting further increases application flexibility. The breaker is compatible with a wide range of auxiliary accessories, such as auxiliary contacts and rate-of-rise trip units, enabling customization to meet the specific needs of individual installations.
Safety and compliance with standards
The S 301 TX3 breaker complies with stringent safety standards (EN 60898-1), providing reliable protection for electrical installations and equipment. The IP20 protection rating guards against accidental contact and ingress of solid objects larger than 12.5 mm. The rated insulation voltage Ui is 500V, and the rated impulse withstand voltage Uimp is 4 kV, confirming high resistance to voltage surges. This ensures you can be confident your installation is safe and protected against potential hazards.

