Circuit breaker S 303 3P B 16A 6000A TX3 403402

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

The S 303 circuit breaker from the TX³ series is a key element of every safe and efficient electrical installation. It provides effective protection against the effects of overloads and short circuits, guaranteeing safety of use and minimizing the risk of failure. This three-pole circuit breaker with a rated current of 16A and a B characteristic is an ideal solution for both demanding installers and conscious users.

Functionality and installation at the highest level

The S 303 TX³ circuit breaker is distinguished by a well-thought-out design that simplifies installation and wiring. The lower latch and terminal covers significantly simplify the installation process, saving time and increasing comfort. Compact dimensions – a width of 3 modules and an installation depth of 44 mm – allow for easy adaptation to an existing distribution board. Mounting is done on a standard TH35 rail.

Safety confirmed by standards

This circuit breaker meets stringent safety standards, including EN 60898, which guarantees its reliability and effectiveness. The rated short-circuit breaking capacity (Icn) is 6 kA at 400 V and 10 kA at 230 V, ensuring a quick response in the event of a dangerous situation. The energy limitation class is 3, and the IP20 protection degree protects against finger contact and the ingress of solid objects larger than 12.5 mm. The rated voltage is 400V AC, and the maximum voltage is 440V AC.

• B characteristic: provides fast tripping in the event of short-term short circuits, protecting sensitive electronic devices. Ideal for circuits with low impedance.
• Three-pole design: provides full protection of the entire circuit, including phase and neutral (although this model does not disconnect the N pole simultaneously).
• Expandability: compatibility with additional equipment (auxiliary contacts, release units) allows you to adapt the functionality to individual installation needs.
• Durability: The circuit breaker is characterized by high mechanical durability (20,000 cycles) and electrical durability (4000 cycles), which translates into a long service life and trouble-free operation.
• Wide frequency range: Operation in the frequency range from 50 to 60 Hz ensures versatility in various electrical systems.