Includes surge protection for equipmentconnected to the RCD.| This Arlec single outlet plug in adaptor with built in safety switch (Residual Current Device) provides protection against electrocution.| The Safety Switch is an electronic sensing device that constantly monitors the balance of current flow between active and neutral within the plugged in appliance.| Should your body contact a live part of the appliance, an imbalance is sensed by the safety switch and the supply is automatically switched off.| Ideal for the bathroom, kitchen or home office workshop.| Australian and New Zealand standards approved.