NEW MULTICOXTACT RELAY 



1129 



Fig. 16 — Contact cover for the new relays showing compartments in which 

 contacts are grouped. 



ments. The probability of reclosures exceeding one millisecond duration 

 is estimated as one in 28,000 relays. This grade of performance is due 

 primarily to: (1) an armature having low travel and the lowest possible 

 mass; (2) an armature suspension designed to dissipate rebound energy 

 into the core plate and core rather than into the actuating card; and (3) 

 a stiff mounting bracket to reduce the natural amplitude of core \'ibra- 

 tion due to armature impact on operate and on release. 



Life 



Less than 5 per cent of the new multicontact relays will l)e required to 

 operate more than 100 million times in crossbar systems during an csti- 



