2.5m Calix USA Type B MS Mains Supply Cable 115v, Boxed - 1762622Calix MS Mains Supply Cable 2. 5m 115v North American Plug (Type B NEMA 5 15) Boxed The Mains Supply (MS) Cable is a durable external cable designed to connect the vehicle or installed system to mains power. When not in use the cable can be reeled up and safely stored in the boot or garage. Calix standard cables are available for 115 and 230 voltage systems and consist of 3 main cable types; Mains Supply Cable (MS), Inlet Cable (MK) and Extension