Similar to type FE3 D, but with four relays suitable for switching up to 6A. With the aid of the radio transmitters (handheld transmitter FS3 H8 or flushmounted transmitter FS3 U4), the 4-channel radio-controlled switch FE3 Q can be used for wireless control of either four individual loads (e.g. lamps, fans, pumps) or two reversible motors for opening and closing shutters, venetian blinds or gates.