The controller ST710-KE1JV.03 has a plastic foil keyboard with 5 fields. Three of them are there to adjust the setpoint and all parameters of the controller. The remaining 2 are there to assign special functions with the help of parameters. The controller is supplied with a tension of 12-24V~ or 16-36V=. The two relays are executed as change- over contacts and have a maximum Ohm (inductive) electric load of 8(1,5)Ampere. 900210.042