Intended use: DSC, PARADOX, RISCO, SATEL, PYRONIX, TEXECOM, TELMOR, ROGER, EBS, PULSAR. External dimensions of the enclosure: W=350, H=400, D+D1=100+8 [+/-2 mm]. External dimensions of the flange: W1=385, H1=430 [+/-2 mm]. Transformer: TRZ50VA/16V/18V/20V - IP43. Fitting battery: 17Ah/12V. Tamper protection: tamper – opening of the enclosure. Notes: flush mounted enclosure, locking - lock, distance from the wall - 8mm.