Overcurrent circuit breaker S 302 2P B 3 A 6000 A series TX3 403381

Electrical Installation Protection with S 302 Circuit Breaker

The S 302 2P B 3A circuit breaker from the TX³ series provides reliable protection for electrical installations against the effects of overloads and short circuits. Designed for both domestic and commercial use, it ensures safety and uninterrupted power supply. The two-pole construction effectively protects two circuits simultaneously.

Functionality and Installation

The breaker features a rated current of 3A and a B characteristic, making it ideal for protecting circuits with devices featuring moderate inrush currents. Its 2-module width allows for easy mounting on a TH35 rail, saving valuable space in the distribution board. The bottom clip design and covered terminals simplify and accelerate wiring. Flush-mounting capability further enhances installation flexibility.

Capabilities and Technical Parameters

The S 302 breaker offers a rated short-circuit breaking capacity of 6 kA at 400 V and up to 10 kA at 230 V (compliant with EN 60898). The rated impulse withstand voltage is 4 kV, ensuring resistance to voltage surges. The energy limitation class is 3, and the IP20 protection rating provides basic protection against contact and solid objects. The breaker operates within a frequency range of 50–60 Hz and has a rated insulation voltage (Ui) of 500 V. The pollution degree is 2, indicating suitability for environments with moderate contamination levels.

Compatibility and Expansion

The device is compatible with a wide range of DX³ series accessories, including auxiliary and signaling contacts, under- and over-voltage releases, and remote control drives. This allows customization of the breaker’s functionality to meet specific installation requirements. Additional equipment options enhance the flexibility and scalability of the protection system.