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Aviation History
1959
1959 - 2390.PDF
riignt, is iepremcc Plessey The Plessey Hermetically Sealed Relay offers the ideal practical solution to many problems. Techniques producing perfect hermetic sealing have been developed by Plessey, ensuring absolute reliability under the severest atmospheric conditions. The Plessey Plug-in 'S' Type Relay with detachable dust cover. The plug-in feature enables speedy replacement- without disturbing the wiring —and checking of both circuit wiring and relay operation. THE PLESSEY 'S! TYPE RELAYS constitute part of the considerable range of reiavs especially developed by Plessey to meet the exacting demands of the Aircraft Industry, Produced in two main versions — the one protected by a removable metal dust cover, the other being hermetically sealed —both 'S* Type Relays are made in 10 and 25 amp ratings, both incorporate a magnetic circuit of increased efficiency and both ensure positive contact even in circuits of low potential. The moving contacts, mounted on a flexible contact spring, have a wiping action; high quality anti-tracking moulding compounds are used throughout and effective creepage paths between live points are provided by raised insulating barriers. For qualified engineers interested in working on advanced equipment of the type illustrated:, the opportunities at Plessey are outstanding. Write to the Personnel Officer for information. • A brochure, giving complete specifica- tions of the whole range of Plessey Relays, is available on request. AIRCRAFT ELECTRICAL DIVISION • AIRCRAFT AND ATOMIC ENERGY GROUP THE PLESSEY COMPANY LIMITED * ll.FORD • ESSEX • ENGLAND Telephone: 1LFORD 3040 Overseas Saks Organisation: PLESSEY INTERNATIONAL LIMITED • 1LFORD • ESSEX • TEL: iLFORf 3040
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