The MRA112-A is a single-pole 12-position half-inch diameter process sealed Rotary Switch with shaft actuated with PC terminals and plain black knob. The MR series rotary switch has zinc alloy with zinc plating housing, brass with nickel plating shaft and steel with zinc plating stopper plate. The positive detent mechanism for distinct feel and audible feedback. The metal bushing and housing construction increases durability.
High contact reliability achieved by the self-cleaning contact mechanism
Break-before-make contact timing with sliding contacts
Interior housing seal and moulded-in PC terminals, plus shaft rubber O-ring on MRA
10mR Maximum contact resistance
100MR at 500VDC Minimum insulation resistance
1000VAC for one minute Minimum dielectric strength
