-Three pump alternance control -Sequence of outputs to balance running times -Relay output with normally open and common contact -Control inputs -Supply voltage ... 24 VDC; 24 VAC; 48 VAC; 110 VAC; 230 VAC -Output contacts .... Max. 8A250 VAC -Format.... 36 x 90 x 58,5 mm -Fixing on panel.... 35 mm track (EN60715)