ISO 3732 - Type S
Standard Description
This connector is the same as the 12N connector, but the center pin (pin 7) has changed gender in order to make the plug unique. Pin 7 has been replaced with a pin in the plug and socket in the outlet.
This connector supplements the 12N connector for power supply of auxiliary items.
7-pin 12V trailer connectors
| # | DIN |
British (-1999) |
ISO 3732 (1999-2008) | Color |
Wire Cross Section |
AWG |
|---|---|---|---|---|---|---|
| 1 | Reversing Lamps | Reversing Lamps | Yellow | 1.5 | 15 | |
| 2 | (15) | Battery Charging | Spare | Blue | 2.5 | 13 |
| 3 | 31 | Common Ground | Common Ground Except for pin 6 | White or Grey | 2.5 | 13 |
| 4 | 30 | Feed for internal 12V equipment except refrigerator | +12V permanent | Green | 2.5 | 13 |
| 5 | Spare | Spare | Brown | 1.5 | 15 | |
| 6 | 15 | Feed for refrigerator | +12V via ignition lock | Red | 2.5 | 13 |
| 7 | Spare | Ground for pin 6 | Black | 2.5 | 13 |