Wylex WRDS80/2 Type A RCD 80A 30mA 2 Pole 2 Module\r\n- Fully shrouded terminals- Contact position indication on the dolly handle- DIN rail mounted- RCD Class: Type A- 30mA Earth fault protection. Operating dolly may be locked in either on or off position\r\nThe Wylex Lifeline range of Type A RCDs. An RCD is a residual current device offering protection against electric shock, reducing the effects of electric shock. The operating dolly may be locked in either the ON or OFF position without affecting the ability of the trip mechanism to operate, meaning the RCD is 'trip-free'