The KO series keylock switches feature zinc-alloy, die-cast housings and cylinders. The majority of the switches in the series are available with a chrome-plated finish. For all models in the KO series, both the contacts and the terminals are silver plated.
The KO01 key switch features a contact rating of 1A at 125 vac and 0.5A at 250 vac. Contact resistance is a maximum of 10 milliohms and insulation resistance is 200 Megaohms at 500 vdc. Dielectric strength is rated at 100 vac for one minute.