Residual current device P 302 2P 80 A 100 mA type AC, DX3 series 411517

Electrical Installation Safety

The residual current device P 302 2P 80 A 100 mA type AC from the DX3 series is a critical component ensuring safety in any electrical installation. Its purpose is to protect users from electric shock and to safeguard equipment against the consequences of short circuits and overloads. This is a reliable solution for both residential and commercial installations.

Functionality and Application

This two-pole residual current device with a rated current of 80 A and sensitivity of 100 mA (type AC) effectively responds to leakage currents by disconnecting the circuit upon detection of a hazard. This significantly reduces the risk of electric shocks and potential fires caused by insulation damage or other installation faults. The use of type AC means the device responds to alternating currents, which is the standard in most electrical installations. Mounting is performed on a DIN rail, facilitating seamless integration with existing protection systems.

Design and Key Features

The P 302 DX3 device features a compact design—occupying only 2 modules on the DIN rail—allowing for space savings in the distribution board. Constructed from high-quality materials, it ensures durability and reliable operation even under demanding conditions (ambient temperature range: -25°C to 60°C). It includes a mechanical lock that prevents accidental re-energizing after tripping—essential for maintaining continuous protection. The rated impulse voltage withstand level of 4 kV guarantees resistance to voltage surges. Additional accessories (auxiliary and signaling contacts) can be added to expand functionality and tailor the device to specific installation requirements. The short-circuit withstand rating of 10 kA ensures effective protection in the event of a short circuit. The connected conductor cross-section for single-core cables ranges from 0.75 mm² to 50 mm², and for multi-core cables from 0.75 mm² to 35 mm². The IP20 protection rating ensures protection against finger contact.