Technical data Rated voltage: AC 230 V ~, 50/60 Hz Stand-by power: max. 0.5 W Power loss: max. 4.5 W Ambient temperature: +5 ... +45 °C Connected load at 25 °C Power specifications including transformer power dissipation. Operate inductive transformers with at least 85 % nominal load. Incandescent lamps: 20 ... 420 W HV halogen lamps: 20 ... 420 W Electronic transformers: 20 ... 420 W Inductive transformers: 20 ... 420 VA When operated without a neutral conductor, the minimum load for incandescent lamps, HV halogen lamps, TRONIC transformers and inductive transformers increases to 50 W. Dimmable HV LED lamps: typical 3 ... 100 W Dimmable compact fluorescent lamps: typical 3 ... 100 W Ohmic-capacitive: 20 ... 420 W Capacitive-inductive: not permitted Ohmic-inductive: 20 ... 420 VA For ohmic-inductive mixed load, maximum 50 % proportion of ohmic load. Otherwise incorrect calibration of the dimmer may result. When operated without a neutral conductor, the minimum load for ohmic-capacitive and ohmic-inductive mixed loads increases to 50 W. Ohmic and HV LED: typical 3 ... 100 W Ohmic and CFL: typical 3 ... 100 W Reduction of load for every 5 °C exceededing 25 °C: −10 % for installation into wooden or hollow walls: −15 % for installation into multiple combinations: −20 % Amplifiers: see instructions for amplifier Connection: screw terminals single wire: max. 4 mm2 stranded without ferrule: max. 4 mm2 stranded with ferrule: max. 2.5 mm2 Number of satellite units Satellite insert 2-wire ref.-no. 1220 NE: unlimited Satellite insert 3-wire ref.-no. 1223 NE: 5 unlit installation buttons: unlimited Total length of extension unit cable: max. 100 m Total length power cable: max. 100 m