Light/Surge voltage suppressor (Mounting hole) Light/Surge voltage suppressor (Mounting hole) (With direct manual override) mounting hole Light/Surge voltage suppressor Electrical entry Manual override (Non-locking) (Mounting hole) (PE port) (External pilot port) 2 position single: VFR310 -�ｭFZ 01 2 position single: VFR320 -�ｭFZ 01 3 position closed center: VFR330 -�ｭFZ 3 position exhaust center: VFR340 -�ｭFZ 3 position pressure center: VFR350 -�ｭFZ 01 01 01 Bottom ported Series VFR3000 Plug-in: 2 Position Single/Double, 3 Position Closed Center/Exhaust Center/Pressure Center ( ): Rc 1 4 . Other dimensions are the same as the single type. . Other dimensions are the same as the single type. 1612