Page 51 - IS-Rayfast Catalogue - Issue 9, 2017
P. 51

Wire and Cable
                                                  NEMA WC27500 • M27500
                                                         Airframe and Equipment Wire
                                                    Military and Commercial Aerospace

                                             The ANSI/NEMA WC27500 REV A specification   1
                                             is commonly used to describe both shielded
                                             and unshielded cable constructions for
                                             avionics, aerospace and airframe applications.   2
                                             The specification allows the user a wide variety
                                             of construction choices. Circuit identification,
                                             conductor size, insulation type, number of   3
                                             conductors, shielding material and jacket
                                             compound may all be specified.
                                                                                  4
                                             QPL is required for WC 27500 in addition to the
                                      RoHS   basic component wires. The producer of the
                                      compliant  finished cable must be a qualified source under   5
                                             the applicable basic wire specification or must
                                             provide evidence that Qualified wire was used
                                             in the construction of the cable.    6
                                             The colour identification charts below should
                                             be used in conjunction with the part M27500   7
                                             numbering guide illustrated over the page.
                                                                                  8

       M27500 Colour Table 3A
                                                                                  9
       illustrated in chart below.
        Wire 1  Wire 2  Wire 3  Wire 4  Wire 5  Wire 6  Wire 7  Wire 8  Wire 9  Wire 10 Wire 11 Wire 12 Wire 13 Wire 14 Wire 15  10

                                                                                 11
        White       Blue      Orange    Green        Red       Black      Yellow      Violet      Grey      Brown        Blue     Orange    Green        Red       Black
        Wire              Single stripe on white wire      Double stripe on white wire
                                                                                 12
       M27500 Colour Table 3B
       For cables having 1-4 and 6-10 wires colour designation is based on stripe over white wire. Whilst wire 5 has no stripe.                13
       Wires 11 to 15 colour designation indicates insulation colour with a white stripe.
 M27500  Conductor  Temp.  Voltage
 Reference  Jacket Insulation  AWG  Wire 1  Wire 2  Wire 3  Wire 4  Wire 5  Wire 6  Wire 7  Wire 8  Wire 9  Wire 10 Wire 11 Wire 12 Wire 13 Wire 14 Wire 15
 Ident.  Plating  Rating  Rating
                                                                                 14
 M81044/5  MD  Silver  Extruded XL-PVDF  150ºC  600 V  24 to 0
 M81044/6  ME  Tin  Extruded XL-PVDF  150ºC  600 V  24 to 0  Red         Blue      Yellow     Green      White       Black     Brown    Orange     Violet       Grey         Red        Blue       Yellow     Green      Black
                         Stripe over white wire           Insulation colour / white stripe  15
 M81044/7  MF  Silver, HSCA  Extruded XL-PVDF  150ºC  600 V  26 to 20
 M81044/8  MG  Silver  Extruded XL-PVDF  150ºC  600 V  24 to 0
                                                                                 16
 M81044/9  MH  Tin  Extruded XL-PVDF  150ºC  600 V  24 to 0
 M81044/10  MJ  Silver, HSCA  Extruded XL-PVDF  150ºC  600 V  26 to 20
       insulation colour may be opaque dark yellow or unpigmented polyimide resin colour.
 M81044/11  MK  Silver  Extruded XL-PVDF  150ºC  600 V  30 to 12  26  24  24  20  18  16  14  12  10  8  6  4  2  1  0  00  17
 M81044/12  ML  Tin  Extruded XL-PVDF  150ºC  600 V  30 to 12
                                                                                 18
 M81044/13  MM  Silver, HSCA  Extruded XL-PVDF  150ºC  600 V  30 to 20
        Black      Blue       Green       Red       White        Blue      Green      Yellow     Brown       Red        Blue       Yellow       Red       White       Blue       Green

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