Switch Actuator 4-fold, 4SU MDRC, 16 A, 230 V AC, C-load, standard, 140 μF. Switch Actuator with bistable relays. Current max. 16 A, capacitive load max. 140 μF. Space saving design. Comprehensive function extension. Lockable manual operation and LED indicator for each channel. NO and NC contact operation. Status response at manually operation. Time functions (switch-on/-off delay, staircase light functions). Extended logical and scene functions for each channel. Extended status functions (inverted, cyclic, at block). Treshold switch (Byte/2 Byte/2 Byte float). Hour meter for switching. Priority/forced operation with automatic release time. Separate power supply terminals for each channel. Power supply via KNX bus. Quick application download (long frame support for ETS5). 3 year warranty.