7SZ-K CT430720  [PARAM] KNX climate zone actuator with 7 outputs (18V DC) Device for controlling motorized grilles to zoning the air conditioning of a KNX installation. It has 7 independent channels, corresponding to each zone/grill. PARAM: Programming by ETS parameter application. Supply: 29V DC from BUS KNX DIN rail mounted (4 modules) documentation Datasheet Programming manual FAQ software ETS application