Circuit breaker S 313 3P B 20A 10000A TX3 404127

Electrical installation protection with S 313 series circuit breakers

The S 313 3P B 20A circuit breaker is an element protecting the electrical installation against the effects of overloads and short circuits. It belongs to the TX³ series, which is characterized by high reliability and ease of installation. The device is intended for both professional installers and end users, ensuring safety and continuity of power supply.

Construction and application

The three-pole circuit breaker with a rated current of 20A and B characteristic is ideal for circuits requiring a quick response to current increase. The B characteristic means that the circuit breaker reacts quickly to short-term overloads, which is particularly important in circuits with devices with high inrush current, e.g. motors. The rated short-circuit breaking capacity at 10 kA at 400V and 16 kA at 230V guarantees effective protection against serious failures. Mounting is done on a TH35 rail, which facilitates integration with the existing electrical infrastructure.

Key features and benefits

• High short-circuit breaking capacity: 10 kA (400 V) and 16 kA (230 V) provides effective protection of the installation against damage caused by short circuits.
• B characteristic: fast reaction to short-term overloads, ideal for circuits with devices with high inrush current.
• Three-pole design: provides comprehensive protection for three-phase electrical circuits.
• Mounting on TH35 rail: facilitates and speeds up installation in electrical switchboards.
• Protection degree IP20: protection against touching with a finger and solid objects larger than 12.5 mm – standard in this type of device.
• Expandability: compatibility with additional equipment modules (auxiliary contacts, releases) allows you to adapt the functionality to individual needs.
• Rated voltage 400V: allows use in most standard electrical installations.
• Energy limitation class 3: provides adequate protection in the event of an electric arc.

S 310 TX³ series circuit breakers are also characterized by mechanical durability at 20,000 switching cycles and high resistance to environmental conditions (storage temperature from -40°C to +70°C). The gray RAL 7035 color ensures an aesthetic appearance and easy identification in the switchboard.