Relays for 2, 4 or 6 contact-arms. Overall dimensions, electrical tests, performance. Positioning and marking of terminals. Cross References:BS 442
BS 1659:1950
Original price was: $160.02.$80.00Current price is: $80.00.
Specification for tractive armature direct current neutral track and line relays for railway signalling
BSI Group , 07/26/1950
Pages: 12


