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Trailer connector according to NATO STANAG 4007. NATO uses a 12-pin connector [NATO 1] [NATO 2] according to STANAG 4007. [1] However, note that there are often deviations from the standard depending on which country it is applied, which means that the table below may not be accurate.
7-pin ISO 1724 trailer connector type 12N (Towing vehicle side). This connector uses a mix of pin and socket terminals. Physical design according to standard ISO 1724. [4] [8] The 7-pin connector uses all 7 pins on newer trailers according to the ISO standard. [9] [10] On older trailers there's sometimes a 5-wire setup using a 7-pin connector.
Flat 5-pin connector (Towing vehicle side) This contact is not as common, but is compatible with the 4-pin connector in the way that a towing vehicle with this connector can be connected to a trailer with the 4-pin flat plug. The extra connection is often used to block the surge brakes when reversing with the trailer. #
A trailer connector is a multi-pole electrical connector between a towing vehicle (car, truck) and a trailer. It is intended primarily to supply automotive lighting on the trailer, but also provide management and supply to other loads. It is also referred to as "trailer wire," "trailer cable," or "trailer connecting cable."
Ground for pin 9 [a] ISO 11446:2004 specifies a 13-pole electrical connector between towing and towed vehicles with 12 volt electrical system . It was developed in 1987 by Erich Jaeger [ 1 ] to replace older 7-pin plugs.
Multicon [1] Feder and Multicon WeSt (Welt Standard) connectors are precursors to ISO 11446 in a design that is intended to be compatible with ISO 1724.This means that if a towing vehicle has an outlet of this type it should be able to connect a trailer with a standard 7-pin or 5-pin connector according to ISO 1724, provided that the trailer coupling follows the standard and that the trailer ...
The image of the 7 and 12 pin flat plugs are from the cable entry view (and possibly the images of the round connectors too). Please see reference [2] (VSB1 section 14) for front image. Reference [1] Narva wiring diagrams also have the diagrams cable entry view. If you want the front view images in colour see [3]
Figure 2 shows how pin spacing and diameter in one common military-type connector are such that a bent pin can fall between two others without making contact. Figure 2 – Connector Pins with Pin Barriers. If the bent pin touches the grounded shell, then the pin's signal is now shorted to chassis ground. If the bent pin is touching another ...