A 40A single-pole plus neutral earth leakage protective device rated at 30mA, designed to detect ground faults and automatically disconnect power to prevent electric shock and fire hazards. This 2-pole relay offers no overload protection, making it ideal for use alongside a separate overload relay in industrial and commercial installations. Essential for compliance with electrical safety standards in South Africa (SANS 10142-1) and widely used by electricians and facilities managers.