Helo OT 22 PS - 3 (400V3N~) is traditional sauna heater control used with SKLA sauna heaters, 18.0 - 26.0 kW with contactor box WE 1. Functions are temperature adjustment, preset time and heating time control ( A+B scale gives the possibility to choose the preset and heating time either 8 hours + 4 hours or 12 hours heating time) and light switch. OT 22 PS - 3 is installed outside the sauna room, IP X4. Size 220x250x80 mm (hxwxd). Note ! 26 kW SKLA heater should be of the type SKLA 262 when this control is used.