Drive T, 24 V AC/DC, 2-point, normally closed, 1.5m connecting line-AEH, PVC, VA10N, 1 W, Protection class III, Protection class IP 54 0.12 m, supplied separately, made of Polyamide Suitable for: all units with electromechanical control configuration KaControl C1 in conjunction with differential pressure-independent valve and 2-way valve (Ultra)