FIELD: railway transport; railway automatics and signalling; switch controls. SUBSTANCE: device has combination control track relay using new type of connection, new type of connection of automatic reset relay, auxiliary relay and time setting relay, switch unit starting device and occupancy indicator. Valves are connected opposite to each other to branches of branched track line. One of valves is shunted by front contact of automatic reset relay. EFFECT: improved reliability of switch control. 1 dwg
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