The mH-RE4 relays are dedicated actuators that control the operation of motor devices (in particular roller shutters). The benefits of using dedicated relays are: Protection against simultaneous activation of the up and down direction. Protection against immediate change of direction (time interval). Spark suppression system extending the life of relay contacts and eliminating network disturbances. LEDs on the front of the device showing the current status. The load capacity of the actuators is 8A. Relay modules are mounted in the switchgear and occupy a field of 6 modules.