Overcurrent breaker S 313 3P B 16 A 10000 A DX3 series 408991

Reliable protection for electrical installations – Legrand DX³ circuit breaker

This three-pole DX³ series circuit breaker from Legrand is a crucial component of every safe and reliable electrical installation. Designed with both professional installers and end users in mind, it provides effective protection against overloads and short circuits in circuits up to 400V. It features a high breaking capacity, ensuring rapid response during emergency situations and minimizing the risk of damage.

Functionality and safety in one device

The S 313 breaker with a rated current of 16A and characteristic B is ideal for protecting lighting, socket, and other circuits with moderate inrush currents. Characteristic B means the breaker responds quickly to overcurrents while being more tolerant of brief current surges—particularly important when connecting devices with motors or other components generating high inrush currents. The rated short-circuit breaking capacity of 10kA at 400V and 16kA at 230V ensures effective protection against the consequences of serious faults.

Easy installation and user-friendly operation

The DX³ breaker stands out with its compact design—occupying only 3 modules on a TH35 rail. Installation is simple and intuitive, with a mounting depth of 44 mm allowing for installation in standard distribution boxes. The IP20 protection rating safeguards against accidental contact, and the flush-mounting option enhances installation aesthetics. Additionally, the breaker supports expansion with optional accessories, enabling customization to meet individual needs. It accommodates single-core cables from 1.5 to 35 mm² and multi-core cables from 1.5 to 25 mm², offering great flexibility in selecting supply conductors. The wide operating temperature range of -25°C to 70°C allows use in diverse environmental conditions.