Overcurrent circuit breaker S 311 1P B 16A 10000A TX3 404084

Electrical installation protection with Legrand S 311 TX³ circuit breaker

The S 311 1P B 16A circuit breaker is a reliable element protecting electrical installations against the effects of overloads and short circuits. Its construction, based on the proven TX³ series, guarantees a quick and effective response in the event of a failure, minimizing the risk of damage to equipment and fire. This solution is dedicated to both professionals and end-users who value safety and comfort of use.

Functionality and technical parameters

The circuit breaker is characterized by a rated current of 16A and a B characteristic, which means it is ideal for protecting circuits with devices with high inrush current – for example, motors. The rated short-circuit breaking capacity at 10kA (at 230V and 400V) provides effective protection against the effects of sudden overvoltages. Mounting on a TH35 rail is simple and intuitive, and the compact dimensions (width 1 module, depth 44mm) allow for optimal use of space in the switchgear cabinet.

• Short-circuit capacity: 10 kA at 230V / 400V – high resistance to sudden current surges.
• Characteristic B: fast reaction to overloads and short circuits, ideal for circuits with motors and other receivers with high starting current.
• Mounting: TH35 rail – easy and quick mounting in the switchgear cabinet.
• Protection class IP20: protection against touching with a finger and against the ingress of solid objects larger than 12.5 mm.
• Rated voltage: 230V AC – standard voltage in most home and commercial installations.
• Energy limitation class: 3 – provides adequate protection in the event of an electric arc.

TX³ series construction and advantages

The TX³ series is synonymous with reliability and durability. These circuit breakers are distinguished by a solid construction and high quality workmanship. The lower latch and terminal covers facilitate mounting and connection of wires, saving time and minimizing the risk of errors during installation. The ability to cooperate with additional auxiliary equipment (auxiliary contacts, releases) allows for expanding the functionality of the protection system. Made of halogen-free materials, which increases safety in the event of a fire.