Circuit breaker S 303 3P C 25A 6000A TX3 403547

Reliable protection of electrical installations – Legrand S 303 TX³ circuit breaker

The S 303 3P C 25A 6000A circuit breaker from the TX³ series is a key element of every safe and reliable electrical installation. Designed for both domestic and industrial applications, it provides effective protection against the effects of short circuits and overloads. Its three-pole design (3P) makes it an ideal solution for three-phase circuits, and the C characteristic guarantees an optimal response in the event of sudden load surges, typical of devices with motors or heating elements.

Design and functionality

The S 303 TX³ circuit breaker is distinguished by its solid construction and thoughtful design. Mounting on a DIN TH35 rail is quick and intuitive, which greatly facilitates the work of installers. Compact dimensions (3 module width) allow for efficient use of space in the distribution board. Additionally, the ability to connect additional auxiliary devices – auxiliary contacts, release mechanisms – expands the functionality of the circuit breaker and allows it to be adapted to the specific needs of the installation.

• Short-circuit capacity: 6 kA at 400 V and 10 kA at 230 V – ensures effective disconnection of the circuit in the event of a short circuit, minimizing the risk of damage and fire.
• C characteristic: Allows for short-term overloads, which is particularly important in circuits with electric motors or other devices with high starting current. This avoids unnecessary tripping of the circuit breaker during normal operation of these devices.
• Rated voltage: 400 V AC – standard voltage in most electrical installations.
• Protection class IP20: Provides protection against accidental contact, which increases safety.
• Flush mounting: Allows for aesthetic and discreet placement of the circuit breaker in the installation.
• Compliance with standards: The circuit breaker meets the requirements of EN 60898 and EN 60947-2 standards, which guarantees its safety and reliability.

Application in practice

The Legrand S 303 TX³ circuit breaker is a versatile solution that will work in various applications:

• Home installations: Protection of lighting, socket circuits and household appliances.
• Commercial buildings: Securing installations in offices, shops and other service facilities.
• Industrial plants: Protection of circuits powering machines and production equipment with high starting current.
• Electrical distribution boards: Installation in new and modernized modular distribution boards as a basic element of installation protection.

Thanks to its reliability and versatility, the S 303 TX³ circuit breaker is an investment in safety and peace of mind for both professional installers and end users.