• BS 1659:1950

BS 1659:1950

Specification for tractive armature direct current neutral track and line relays for railway signalling

BSI Group , 07/26/1950

Publisher: BS

File Format: PDF

$80.00$160.02


Relays for 2, 4 or 6 contact-arms. Overall dimensions, electrical tests, performance. Positioning and marking of terminals. Cross References:BS 442

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