3-Pin Trailer Socket Connector – 12V Round Plug for Caravans, Trucks & RVs

Keep your trailer's signal lights and electrical connections secure with this heavy-duty 3-Pin Trailer Socket Connector. Conforming to DIN 72572 (plug) and DIN 9680 (socket) standards, this round 3-pole connector set is the go-to solution for reliably linking your trailer or caravan to its power supply. Whether you're towing a boat, RV, agricultural trailer, or a commercial truck, this plug-and-socket combo delivers a dependable 12V connection every time.

Key Features

High-Quality PP Plastic Housing – Durable, impact-resistant polypropylene construction built for long-term use in demanding environments.
Copper-Zinc Alloy Contacts – Flat plug contacts ensure excellent electrical conductivity and a secure, corrosion-resistant connection.
DIN Standard Compliant – Plug meets DIN 72572; Socket meets DIN 9680 for compatibility with standard European trailer wiring setups.
Versatile Compatibility – Ideal for caravans, trucks, RVs, boats, agricultural tractors, and utility trailers.
Simple Installation – Straightforward plug-in design with pre-measured mounting holes for easy panel or chassis fitting.
12V System Ready – Designed specifically for 12V trailer lighting and signal circuits.

Specifications

3-Pin Connector (Plug) – DIN 72572

Material: Plastic (PP) with copper-zinc alloy flat plug contacts
Length: 81mm
Diameter: 31mm

3-Pin Socket – DIN 9680

Material: Plastic housing with copper-zinc alloy flat plug contacts
Length: 42mm
Total Width: 61.5mm
Distance Between Mounting Holes: 46mm
Installation Hole: 26mm

Package Includes

1× Socket OR 1× Connector (select your required variant)

Made in Mainland China.

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For more information on safe electrical wiring practices for trailers and towing vehicles, visit the U.S. Consumer Product Safety Commission (CPSC) for general electrical safety guidance.

Learn more: Electrical connector

Frequently Asked Questions

Q: What vehicles and applications is this 3-pin trailer connector compatible with?

A: This 3-pin trailer socket connector is compatible with a wide range of 12V towing applications including caravans, RVs, boats, agricultural tractors, utility trailers, and commercial trucks. It is designed for trailer signal light and electrical connection use.

Q: Does this product include both the plug and the socket?

A: Each listing includes either 1× socket or 1× connector (plug) — please select your required variant at checkout. If you need both, simply add two units (one of each variant) to your cart.

Q: What DIN standards does this connector conform to?

A: The 3-pin connector (plug) conforms to DIN 72572, and the 3-pin socket conforms to DIN 9680. These are standard European trailer wiring specifications, ensuring broad compatibility with most 12V trailer setups.

Q: What material are the electrical contacts made from?

A: The connection contacts are flat plugs made from a copper-zinc alloy, providing excellent electrical conductivity and resistance to corrosion for long-lasting, reliable performance.