The buffer power supply is designed in accordance with the requirements of the EN 50131-6 standard, grade 1÷2 and II environmental class. It is intended for an uninterrupted supply of alarm system devices requiring stabilized voltage of 12 V DC (+/-15%). Alinear stabilizing system, which has been used in the unit, provides voltage with a lower level of noise and a quicker response to interference when compared to a switched-mode regulator. Power supply: 230VAC/50Hz. Power supply output: (1) 3A/13,8VDC - for general application (2) 1,4A/13,8VDC - for grade 1, 2. Battery charging current: 0,4A/0,9A. Fitting battery: 17Ah/12V. Current consumption by PSU systems: 15 mA max. Protections: SCP, OLP, OVP, UVP, tamper (opening of the enclosure). Technical outputs OC type: EPS - 230V power failure AC, PSU - power supply failure, APS – battery failure. Compliance with the standards: EN50131-6. Dimensions: W=230 H=300 D+D1=82+8 mm [+/- 2mm]. Surface mounted enclosure, locking – bolted.