Residual current device P 302 2P 40 A 300 mA Type A DX3 series 411570

Protection and Safety in Your Electrical Installation

This two-pole residual current device (RCD) from the DX3 series is a critical component ensuring safety in every electrical circuit. Designed to protect people and equipment against the effects of electric shock and fires caused by short circuits, it provides a reliable protective barrier. The rated residual current of 300 mA combined with Type A sensitivity makes it an ideal solution for a wide range of applications in residential and commercial buildings.

Functionality and Installation

The device is designed for DIN rail mounting, simplifying and accelerating installation. Its compact dimensions — only 2 modules wide — save space in the distribution board. The ability to connect conductors with cross-sections from 0.75 mm² to 50 mm² (single-core) and from 0.75 mm² to 35 mm² (multi-core) ensures flexibility in cable selection. Additionally, the built-in lock prevents accidental tripping, enhancing operational safety. The test button allows for regular verification of the device’s functionality, guaranteeing reliable operation when needed.

Specifications and Parameters

The device features a rated current of 40 A and a rated voltage of 230 V AC. The rated impulse withstand voltage of 4 kV and short-circuit capacity of 10 kA ensure resilience against sudden voltage surges and short circuits. The wide operating temperature range from -25°C to 60°C allows use in diverse environmental conditions. The IP20 protection rating guards against finger contact and solid objects larger than 12.5 mm, providing additional safety during operation. Manufactured in RAL 7035 color, it integrates seamlessly with other electrical installation components. The device does not feature selective protection or explosion-proof construction.