Intended use: SATEL. The construction compliant with EN50131, grade 3. External dimensions of the enclosure: W=460, H=550, D=175, D1=20 [+/- 2mm]. Transformer: TRP 80VA/16V/18V/20V - IP30. Fitting battery: 28Ah/12V. Tamper protection: tamper – opening of the enclosure, detachment from the wall. Notes: surface mounted enclosure, locking – bolted , distance from the wall - 20mm.