Circuit breaker S 304 4P C 20A 6000A TX3 403563

Overcurrent circuit breaker S 304 4P C 20A is a reliable protection for electrical installations against the effects of overloads and short circuits. The four-pole circuit breaker with C characteristic and a rated current of 20A is used in both domestic and industrial installations. The design based on the TX³ series ensures easy mounting and wiring, and the possibility of cooperation with additional equipment expands the functionality of the device.

Features and application

S 300 and S 310 TX³ series circuit breakers are a proven choice for installers and users who value safety and convenience. Model S 304, thanks to its short-circuit capacity of 6kA at 400V and 10kA at 230V, effectively protects circuits from damage. The C characteristic allows for trouble-free starting of devices with motors or other elements generating short-term current surges – the circuit breaker reacts more slowly to these sudden changes, avoiding unnecessary tripping. Flush mounting and a width of 4 modules facilitate integration with existing electrical infrastructure.

Advantages and benefits

• High breaking capacity: Ensures effective protection against serious failures in the installation.
• C characteristic: Ideal for protecting circuits with receivers generating inrush currents, e.g. motors, transformers.
• Easy installation: Bottom clip and terminal covers simplify the installation and connection process.
• Expandability: Compatibility with additional equipment (auxiliary contacts, release units) allows you to adapt the circuit breaker's functions to specific needs.
• Versatility: Suitable for use in various types of electrical installations – both in residential and industrial buildings.
• Compliance with standards: Meets the requirements of EN 60898-1 and EN 60947-2 standards, guaranteeing safety of use.
• Durable construction: Made of high-quality materials ensures long device life (mechanical durability: 20000 switching cycles).

Technical parameters and construction

The S 304 circuit breaker has a rated voltage of 400V AC and an insulation voltage of 500V. The degree of protection IP20 provides basic protection against accidental contact. The device is designed for mounting on a TH35 rail and is characterized by a frequency range of 50 to 60 Hz. The rated impulse withstand voltage Uimp is as high as 4kV, which indicates high resistance to overvoltage. At the same time, the disconnectable N pole increases safety in the event of a failure. The device width of 4 modules allows for efficient use of space in the switchgear cabinet.