Power supply unit for Sound System interphone with 15 V output, power supply 230 V~ 50/60 Hz 55 VA, entrance panel call function, with triple note generator for calls from the external entrance panel, the landing or intercom units, for electronic units 0930/000.04 and 930A, installation on DIN rail (60715 TH35), occupies 8 modules size 17.5 mm
