LEGRAND RX – RCD LR 40A – 400 V~ – 40 A – 300 mA AC type

Product Features:

• 4-pole residual current device (RCD) from Schneider Electrics RX LR range, offering reliable protection against earth leakage faults in three-phase circuits.
• Rated at 40A with Type AC sensitivity suitable for detecting sinusoidal alternating residual currents in general-purpose installations such as lighting, HVAC, and power outlets.
• 300mA leakage current sensitivity ideal for equipment and fire protection, often used upstream of more sensitive 30mA devices to provide layered protection without nuisance tripping.
• Compatible with 400V~ three-phase systems, enabling full disconnection of all conductors (phases and neutral) during fault conditions for comprehensive safety.
• Ideal for use in TT, TN-S, and TN-C-S earthing systems in residential, commercial, and light industrial applications.
• DIN rail mountable for efficient and secure installation in distribution boards and electrical panels.
• Includes a test button for routine functional checks to ensure ongoing protection and performance.
• Compliant with IEC/EN 61008-1 standards, ensuring reliable operation and international safety compliance.