Circuit breaker S 302 2P B 25A 6000A TX3 403389

Overcurrent circuit breaker S 302 2P B 25A is a reliable protection for electrical installations against the effects of overloads and short circuits. Designed for both domestic and professional applications, it ensures safe use and long-term protection of circuits. This model, from the TX³ series, is characterized by easy installation and compatibility with a wide range of accessories.

Characteristics and application

The S 302 circuit breaker is a two-pole device designed to operate in circuits with a rated voltage of 400V AC. Its B characteristic means that it reacts quickly to current increases, but is also resistant to short-term surges, which is particularly important when connecting devices with electric motors or other loads with high starting current. The rated short-circuit breaking capacity of 6kA at 400V and 10kA at 230V guarantees effective protection in the event of a failure. Mounting on a TH35 rail facilitates integration with existing electrical infrastructure.

Advantages and benefits

• Wide application: ideal for protecting lighting, socket and electrical appliance circuits in residential and commercial buildings.
• Easy installation: the lower latch and terminal covers greatly simplify the installation and connection of wires.
• Compatibility with accessories: the ability to expand with auxiliary contacts, release devices and remote drives increases the functionality of the circuit breaker.
• High reliability: made of high-quality materials, ensures long-lasting and trouble-free operation.
• Safety: effectively protects the electrical installation against overloads and short circuits, minimizing the risk of fire or equipment damage.
• Compliance with standards: meets the requirements of IEC/EN 60898-1 and IEC/EN 60947-2 standards, which confirms its safety and quality.

Technical parameters in practice

The S 302 circuit breaker has a rated current of 25A, which means it can safely handle loads up to this value. A width of 2 modules allows for efficient use of space in the switchgear cabinet. The degree of protection IP20 provides protection against accidental contact, but does not protect against the effects of water or dust - therefore, the device should be mounted in dry and closed rooms. The rated insulation voltage Ui of 500V guarantees safety even in the event of overvoltage. The rated impulse withstand voltage Uimp is as high as 4kV, which further increases the device's resistance to sudden voltage surges.