Intended use: RISCO, ROEL. External dimensions of the enclosure: W=350, H=400, D+D1=90+8 [+/-2 mm]. External dimensions of the front panel: W1=355, H1=405 [+/-2 mm]. Transformer: TRP 40VA/16V/18V, IP30. Fitting battery: 17Ah/12V. Tamper protection: tamper – opening of the enclosure. Notes: surface mounted enclosure, locking – bolted x4, distance from the wall - 8mm.