A buffer PSU is designed for uninterrupted supply of devices requiring stabilized voltage of 24V DC (+/- 15%). The PSU supplies voltage of U=27,6V DC. In case of mains power loss, the unit will instantly switch to battery operation. The PSU is enclosed in a metal casing (color RAL9003) with battery housing for two 17Ah/12V batteries. The enclosure is fitted with a micro switch indicating door opening (front cover) and the detachment from the wall. Power supply: 230VAC/50Hz. Power supply output: 3A/27,6VDC. Battery charging current: 0,5A/1A. Fitting battery: 2x17Ah/12V. Efficiency: 84%. Protections: SCP, OLP, OVP, UVP, tamper (opening of the enclosure, detachment from the wall). Technical outputs OC type: EPS - 230V power failure AC, PSU - power supply failure, LoB – low battery voltage. Dimensions: W=400 H=350 D+D1=92+8 mm [+/- 2 mm]. Surface mounted enclosure, locking – bolted.