Viessmann 5552 – 2x 2UM electronic relays

2 separate bistable relays, each with 2 contacts. The relays have no end of throw switch but can be used with continuous current. To control colour light signals and semaphores signals, barriers, block- and train change automatic etc. Control by positive switching impulses resp. by DC or AC. Power consumption 300 mA. Contact rating each changeover contact max. 2 A.