Circuit breaker S 301N 1P+N B 10 6000 A series DX3 407473

Reliable Protection for Electrical Installations – Legrand S 301N Circuit Breaker

This single-pole circuit breaker with neutral pole (1P+N) is part of the DX³ series, designed to protect electrical circuits in residential and commercial buildings. Rated for operation at 230V, it provides effective protection against overloads and short circuits, minimizing the risk of equipment damage and fires. The B characteristic makes this breaker particularly recommended for circuits powering devices with high inrush current, such as motors or transformers.

The S 301N breaker features a compact design—occupying only one module on a TH35 rail—allowing optimal space utilization in distribution boards. Its rated short-circuit breaking capacity of 6 kA (per IEC/EN 60898-1) and 10 kA (per IEC/EN 60947-2) ensures rapid and reliable response during hazardous conditions. Additionally, the IP20 protection rating guards against accidental contact with live parts.

Installation and Compatibility

The Legrand S 301N is designed for mounting on a TH35 rail. It supports expansion with additional DX³ series accessories—such as auxiliary contacts or trip units—enhancing functionality and enabling customization to meet specific installation requirements. The allowable conductor cross-sections range from 0.75 mm² to 16 mm² for single-core cables and from 0.75 mm² to 10 mm² for multi-core cables, ensuring broad compatibility with various wiring types.

• Protects AC circuits at 230V against overloads and short circuits.
• Compact dimensions save space in distribution boards—occupies only one TH35 rail module.
• High short-circuit breaking capacity ensures fast response and minimizes damage risk during faults (6 kA / 10 kA).
• Versatility through expandability with DX³ series accessories.
• Wide range of compatible conductor sizes: supports both single-core and multi-core cables from 0.75 mm² to 16 mm².
• B characteristic makes it ideal for circuits with high inrush current devices (e.g., motors).
• Enhanced safety with IP20 protection, preventing accidental contact with live parts.
• Durability in harsh conditions—maintains performance across ambient temperatures from -25°C to +70°C.