Overcurrent breaker S 304 4P B 2 A 6000 A TX3 series 403410

Protection of installations and installation comfort with Legrand TX³ circuit breaker

This four-pole TX³ series circuit breaker is a reliable solution for protecting electrical installations against the effects of overloads and short circuits. Designed with both professional installers and end-users in mind, it combines high protection efficiency with ease of installation. A rated current of 2A combined with characteristic B ensures optimal performance for circuits requiring rapid response to current surges while tolerating brief spikes—ideal for lighting or socket circuits.

Construction and key features

The S 304 TX³ breaker stands out with its robust construction and thoughtful design features that simplify installation. Its 4-module width ensures compact dimensions, while the ability to mount on a TH35 rail allows seamless integration into existing infrastructure. With a breaking capacity of 6 kA at 400V (compliant with IEC/EN 60898-1) and 10 kA at 230V (compliant with IEC/EN 60898-1), it guarantees effective protection even during high transient overcurrents. Additionally, simultaneous disconnection of the neutral conductor enhances operational safety.

• Characteristic B: Provides fast response to current increases, protecting sensitive electronic devices.
• Breaking capacity: High breaking capacity (6 kA/10 kA) ensures effective protection during faults.
• Installation: Bottom clip and shielded terminals simplify and accelerate wiring and connection.
• Modularity: 4-module width enables efficient use of space in distribution boards.
• Safety: Simultaneous disconnection of the neutral conductor increases user safety.
• Versatility: Compatibility with various auxiliary devices (auxiliary contacts, trip units) allows customization to specific installation needs.

Applications and compliance with standards

The S 304 TX³ circuit breaker is suitable for a wide range of electrical installations—both residential and commercial. It complies with the requirements of IEC/EN 60898-1 and IEC/EN 60947-2, confirming its high quality and reliability. The IP20 protection rating guards against accidental contact, while a rated insulation voltage (Ui) of 500V ensures safe operation under various environmental conditions. Designed for AC voltage at 50–60 Hz, it is fully compatible with most standard electrical installations.