Power supply: 200÷240VAC. Power supply output: 4A/27.6VDC. Compliant with standards: (1) Construction compliant with EN50131, GRADE 1 and 2. (2) Access control norm EN60839-11:2013, Grade 1 and 2. Battery charging current: 1A/2A. Efficiency: 89%. Dimensions: 204 x 141 x 52 [+/-2 mm]. Protections: SCP, OLP, OVP, UVP. Technical outputs relay type: (1) EPS – AC power failure, (2) APS – battery failure. Notes: (1) an automatic battery test performed every 5 minutes, (2) for mounting on a DIN rail, required bracket: DIN4, (3) Additional accessories: set of LED optical indication PKAZ168.