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DIN 72552 is a DIN standard for automobile electric terminal numbers, standardizing almost every contact in an automobile with a number code.


 

Ignition system

1    coil, distributor, low voltage
1a, 1b   distributor with two separate circuits
2    breaker points magneto ignition
4   coil, distributor, high voltage
4a, 4b    distributor with two separate circuits, high voltage
7    terminal on ballast resistor, to distributor
15   battery+ from ignition switch
15a   from ballast resistor to coil and starter motor

Preheat (Diesel engines)

15    preheat in
17    start
19    preheat (glow)

Starter

50    starter control

Battery

15    battery+ through ignition switch
30    from battery+ direct
30a    from 2nd battery and 12/24 V relay
31    return to battery- or direct to ground
31a    return to battery- 12/24 V relay
31b    return to battery- or ground through switch
31c    return to battery- 12/24 V relay

Electric motors

32    return
33    main terminal (swap of 32 and 33 is possible)
33a    limit
33b    field
33f    2. slow rpm
33g    3. slow rpm
33h    4. slow rpm
33L    rotation left
33R    rotation right

Turn indicators

49    flasher unit in
49a    flasher unit out, indicator switch in
49b    out 2. flasher circuit
49c    out 3. flasher circuit
C    1st flasher indicator light
C2    2nd flasher indicator light
C3    3rd flasher indicator light
L    indicator lights left
R    indicator lights right
L54    lights out, left
R54    lights out, right
AC generator
51    DC at rectifiers
51e    as 51, with choke coil
59    AC out, rectifier in, light switch
59a    charge, rotor out
64    generator control light

Generator, voltage regulator

61    charge indicator (charge control light)
B+    battery +
B-    battery -
D+    dynamo +
D-    dynamo -
DF    dynamo field
DF1    dynamo field 1
DF2    dynamo field 2
U, V, W    AC three phase terminals

Lights

54    brake lights
55    fog light
56    spot light
56a    headlamp high beam and indicator light
56b    low beam
56d    signal flash
57    parking lights
57a   parking lights
57L    parking lights left
57R    parking lights right
58    licence plate lights, instrument panel
58d    panel light dimmer

Window wiper/washer

53    wiper motor + in
53a    limit stop+
53b    limit stop field
53c    washer pump
53e    stop field
53i    wiper motor with permanent magnet, third brush for high speed

Acoustic warning

71    beeper in
71a    beeper out, low
71b    beeper out, high
72    hazard lights switch
85c    hazard sound on

Switches

81    opener
81a    1 out
81b    2 out
82    lock in
82a    1st out
82b    2nd out
82z    1st in
82y    2nd in
83    multi position switch, in
83a    out position 1
83b    out position 2

Relay

85    relay coil -
86    relay coil +

Relay contacts

87    common contact
87a    normally closed contact
87b    normally open contact
88    common contact 2
88a    normally closed contact 2
88b    normally open contact 2

Additional

52    signal from trailer
54g    magnetic valves for trailer brakes
75    radio, cigarette lighter
77    door valves control




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