HPSDCG2 series the buffer power supply is designed in accordance with the requirements of the (I and HAS) EN50131- 6 2017 grade 1,2, II environmental class and EN60839-11-2 2015+AC 2015, I environmental class. Power supplies units are intended for an uninterrupted supply of I and HAS and KD devices requiring stabilized voltage of 12V DC (more or less15%). They are mounted inside a metal enclosure equipped with a signalling panel and a microswitch indicating opening of door (lid).