Overcurrent breaker S 304 4P C 63 A 6000 A series DX3 407934

The DX³ series circuit breakers are Legrand’s solution for professionals and end-users who value reliability and ease of installation. The S 304 model, in a four-pole (4P) version with a rated current of 63A and characteristic C, provides robust protection for electrical installations against overloads and short circuits. The rated short-circuit breaking capacity of 6kA (at 400V) ensures effective protection in the event of a fault.

This specific model, with catalog number 407934, stands out for its universal applicability—it performs reliably in residential, commercial, and industrial installations alike. Characteristic C indicates delayed tripping during brief overloads, which is particularly important for devices with electric motors or other loads generating high inrush currents. This prevents unnecessary tripping during normal equipment operation.

• Versatility: The four-pole design allows protection of the entire circuit, including all phases and neutral.
• High breaking capacity: 6kA at 400V guarantees effective protection against short-circuit consequences.
• Characteristic C: Ideal for protecting circuits with loads generating surge currents, such as motors.
• DIN-rail mounting: Standard mounting on TH35 rail simplifies and accelerates installation.
• Expandability: Compatibility with DX³ series accessories—such as auxiliary contacts or additional trip units—enables customization to meet specific installation requirements.
• Safety: Compliance with IEC/EN 60898-1 and IEC/EN 60947-2 standards ensures a high level of operational safety.

This breaker also features a wide range of compatible conductor cross-sections: 1.5 mm² to 35 mm² for single-core cables and 1.5 mm² to 25 mm² for multi-core cables, allowing easy adaptation to various types of electrical wiring. Additionally, compatibility with busbar or pin-type connectors enhances mounting flexibility.

The use of high-quality materials and precise manufacturing ensures long service life and reliable operation of the DX³ series S 304 breaker. It is an investment in safety and comfort for electrical installations over many years. The IP20 protection rating provides protection against accidental contact and ingress of solid objects larger than 12.5 mm.