Residual current device PR 302 2P 63 A 300 mA type AC, DX3 series 410414

Residual Current Device – Protection and Installation Safety

This two-pole residual current device from Legrand’s DX3 series is a critical component ensuring safety in every electrical installation. Designed to protect people and equipment against the effects of electric shock and faults caused by leakage currents. The PR 302 model, rated at 63A and with a sensitivity of 300mA, type AC, is ideal for safeguarding circuits in residential and commercial buildings.

Functionality and Application

This device, mounted on a TH35 rail, features rapid response to detected residual current, minimizing the risk of electric shock. Its design allows easy connection of conductors with cross-sections from 1.5 mm² to 35 mm² (single-core) and from 1.5 mm² to 25 mm² (multi-core), compatible with both comb and pin busbars. A mechanical lock prevents accidental tripping, which is especially important in public areas or where access to the device is restricted.

Design Features and Compliance with Standards

The device is engineered for durability and reliability. Its enclosure is rated IP20, providing protection against contact and ingress of solid objects. Designed to operate in a wide ambient temperature range (-25°C to 70°C), it ensures stable performance even under harsh conditions. The device complies with EN 61008-1 standard, confirming its conformity with European safety requirements. Additionally, the option to expand functionality with auxiliary contacts, trip units, and drives from the DX³ series allows customization to meet specific installation needs. The device responds to sinusoidal alternating residual currents (type AC), making it an ideal solution for most standard residential and commercial applications.