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Text version of the page
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| Connectors | CIRCULAR CONNECTORS | ||
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| UK-AN | |||
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| Page 3 of 52 | |||
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| DESIGN AND ELECTRICAL FEATURES | |||
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| Specification: Voltage rating; Current rating; | Manufactured in accordance with the conditions specified in EL1987, DEF5321 and MIL-C-5015D. One standard voltage rating of 2kV r.m.s. irrespective of contact spacing. Contacts have nominal ratings of 12 amp (size 16), 24 amp [size 12), 50 amp (size 8) and 100 amp (size 4). The types, numbers and sizes of cable used In any given arrangement determine total connector ratings. Relevant cable specifications should be consumed and ratings determined, bearing in mind that the maximum continuous operating temperature of these connectors is 190°C. Pins and socket contacts are manufactured from copper alloys, silver or gold plated to give a contact resistance of less than 10 mMliohms for any mated plug and socket regardless of size. Between any contact and earth, in excess of 10s megohms at 500 volts. Proved satisfactory at working temperatures from —55°C to -H90DC. Successfully passed humidity tests up to 100%, including conditions producing condensation on equipment. Successfully tested to the conditions of specification DES. 1 (see Sec. 1/4 zone C). Successfully tested to the conditions of specification DES. 1 (clause 3[e) (iv)}. A special connector with housings of steel has been designed to withstanc a flame temperature of 1100CC for a period of not less than 20 minutes in accordance with specification MIL-C-5015D. Outlet accessory sets are essential on all fireproof assemblies. A non-tracking dielectric of silicone rubber is incorporated to give moisture-proof and heat-resisting mouldings in standard and E.T. types. Manufactured from an aluminium alloy with Alocrom 1200 finish for maximum performance with a minimum of weight, or from mild steel, cadmium plated with olive drab passivation for strength and resistance to fire. A coupling nut of corrosion resistant brass (cadmium plated and passivated) is Incorporated in all aluminium free units and, being of a dissimilar metal to the shell, prevents seizure of threads. Available only as fixed units or free units, the former being suitable for use as a free coupler unit if required. The fixed unit is available for mounting with a 4 hole fixing by the provision of two loose square flanges with fixing centres of AN connectors, or a round flange and attachment nut. To avoid mismating when several similar connectors are mounted adjacent to each other, in strict conformity with MS drawings and Ivl IL-C-5015D, certain mouldings are capable of being assembled into alternative positions relative to the keyway. In critical circuits this safety factor alone should not be relied upon. Plug or socket mouldings permit the use of the socket for the live side of all connections with the exception of assemblies in shell size 10rs the socket then being always the free unit. Primarily designed for open wiring on which no accessories are considered necessary, but a range of straight and rightangle outlets incorporating a clamping deyice has been designed for multicore cables or continuity of screening. A small quantity of Gredag 1546/G approved lubricant should be used on all engaging threads | ||
| Contact resistance: | |||
| Insulation resistance: Temperature: Humidity: Vibration proof; Shock proof: Fireproof: | |||
| Insulation: Housing: Coupling method: Shell design: Mounting (aluminium range): Mismating: Interchangeability: Cable fittings: Thread lubrication: | |||
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