WE 1 Contactor box WE 1 is used together OT 22 PS-3 or OT 2 PUi (requires week timer) to control SKLA and Magma-heaters. It is installed in a dry space outside the sauna room. Dimensions are: 250 x 185 x 74 (l x k x s). WE 3 Contactor box WE 3 is used together with Digi I, Digi II, Midi and Easy control units for Havanna D heater. It is installed in a dry area outside the sauna. Dimensions are 285 x 197 x 65 (L x H x D). WE 4 Contactor box WE 4 is used together with Digi I and Digi II control units for SKLE, Laava and Octa heaters. It is installed in a dry area outside the sauna. Dimensions are 340 x 195 x 90 (L x H x D). WE 5 Contactor box WE 5 is used together with Digi I and Digi II control units for SKLA and Magma heaters. It is installed in a dry area outside the sauna. Dimensions are 390 x 243 x 91 (L x H x D). WE 11 Contactor box WE11 is used together with Smart control for Taika heater. It can be installed in or outside the sauna room. Dimensions are: 230 x 330 x90 (W x H x D).