DC Isolators for Solar PV

DC rotary Isolators for Solar PV Systems are often coloured black and are larger than their AC counterparts, although this is not always the case. The installer is obliged under MCS QA procedures to check that the equipment supplied is correct against the materials check list. One way of doing this is to look at the paperwork/instructions provided with the device or to look inside the switch to inspect for a label detailing it's type, voltage and current rating.

AC rated switches are not suitable for DC applications, as they do not have the switching speed or rating to handle DC conditions - please see attached manufacturers web site http://www.imopc.com and search DC Isolators.