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BSI BS 519:1950

Specification for tractive armature direct current neutral-polar line relays for railway signalling
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BSI BS 519:1950

Specification for tractive armature direct current neutral-polar line relays for railway signalling

PUBLISH DATE 1950
PAGES 16
BSI BS 519:1950

REAFFIRMED IN 1980

Relays having up to four neutral contact-arms and up to four polar contact-arms.

Construction (overall dimensions, electrical tests, performance characteristics); arrangement, marking of terminals.

SDO BSI: British Standards Institution
Document Number 519
Publication Date July 14, 1950
Language en - English
Page Count
Revision Level
Supercedes
Committee GEL/9
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