The Vimpex VMIS2S-W is a secure surface-mounted mains isolator switch designed to safely isolate the mains power supply to fire alarm and life safety systems in accordance with BS 5839-1. Featuring a key-operated switch, double-pole isolation (Live and Neutral), and an integral fused enclosure, it prevents unauthorised power disconnection while allowing safe maintenance. The white, single-gang enclosure is suitable for surface mounting and accommodates standard conduit and trunking installations.