12V EU Truck and Trailer 7 Pin round Metal Aluminum Plug-Socket

Short Description:

This is currently the most popular plug used for towing as it does the lighting on most trailers and caravans. All trailer sockets are very simple to wire.

  • Min.Order Quantity: 1000Piece/Pieces
  • Supply Ability: 50000 Piece/Pieces per Week
  • Port: Shanghai, China
  • Payment Terms: T/T
  • Product Detail

    Product Tags

    This is currently the most popular plug used for towing as it does the lighting on most trailers and caravans.

    All trailer sockets are very simple to wire.

    To wire a plug or socket the first thing to do is to disassemble the plug or socket, this is very simple as the centre part that the wires fasten into can then be removed giving easy access to the screws then fasten the wires to the relevant pins.
    Split-pin connections
    Die-cast casing
    Dust and water resistant
    Floating pins for ease of alignment and maximum contact
    Optimum slant mount and drain slot rid housing interior of accumulated moisture
    Self-ground terminal pin #1 will accept 8-14 AWG
    All other terminals accept 10-16 AWG
    Connect to 7-way trailer connector plugs
    Interchangeable with competitive makes

    We also provide a matching 7P plug
    Packing: We can provide blister box, card box and plastic bag according to your request.


    Product information
    Model:  CT3004
    Type: Socket(European Style)
    Shape: flat round
    Production process: Injection molding
    Features:   Waterproof
    Contact material: Copper
    Insulator material: Engineering plastic
    Material: Aluminum
    Number of cores: 7
    Number of stitches: 7
    Voltage output: 12V
    Main function: Connecting truck and power supply, suitable for trailer signal display
    Applications: Commercial vehicles / trailers / RVs / trucks / trucks / semi-trailers /Car/ship/caravan/yacht, etc.


    7 Pin Lighting Connections – 12 N Black Cable Function


    PIN 1 – Yellow Wire (Left/Hand Direction Indicator)

    PIN 2 – Blue Wire ( Rear Fog Lamps)

    PIN 3 – White Wire ( Earth Return)

    PIN 4 – Green Wire (Right/H Direction Indicator)

    PIN 5 – Brown Wire (Right/H Tail & No. Plate Lamp)

    PIN 6 – Red Wire (Stop Lamp)

    PIN 7 – Black Wire (Left/H Tail & No. Plate Lamp)


    Caravan 7 pin supplementary circuits 12S grey cable function

    Pin 1- Yellow Reversing Lamps

    Pin 2- Blue Battery Charging (original UK system)

    Pin 3 -White Earth Return (for pins 2&4)

    Pin 4- Green Power Supply

    Pin 5 -Brown Spare

    Pin 6- Red Fridge

    Pin 7- Black Earth Return (for pin 6)



  • Previous:
  • Next: