GX12 Waterproof Aviation Connector – 2–7 Pin Male & Female Docking Butt Joint Plug & Socket

GX12 waterproof aviation circular connectors in a docking (butt joint / inline) configuration — both male and female halves are on cable ends, allowing two cable runs to be connected mid-harness without a panel-mount point. The IP67 waterproof rating (achieved via O-ring on the mating face and cable entry seals) makes this configuration suitable for outdoor machinery, agricultural equipment, and industrial applications where the connector is exposed to rain and moisture. The 12mm screw-lock thread provides vibration-resistant mating.

Key Specifications

• Series: GX12 (12mm thread diameter)
• Pin Configurations: 2, 3, 4, 5, 6, 7 pin (select above)
• Configuration: Docking / butt joint (both halves on cable ends)
• IP Rating: IP67
• Current Rating: 5A per contact (2–5 pin); 3A per contact (6–7 pin)
• Voltage Rating: 250V AC/DC
• Contact Material: Copper alloy, gold-plated
• Body Material: Zinc alloy, nickel-plated

Docking (Butt Joint) vs Panel Mount — Configuration Selection

• Panel mount (nut type): One half is fixed to a panel via a rear nut; the other half is on a cable. Use when one connection point must be permanently fixed to a structure (equipment panel, enclosure wall, bulkhead).
• Docking / butt joint (this product): Both halves are on cable ends. Use for mid-harness connections where neither end is fixed to a panel — for example, connecting a sensor cable to a machine harness, or creating a detachable connection point in a cable run between two pieces of equipment.

Frequently Asked Questions

How do I achieve IP67 with a docking GX12 connector?

Three conditions: (1) The mating face O-ring must be present and undamaged. (2) The cable entry seal must be correctly sized for the cable OD and fully compressed by the cable entry nut. (3) The coupling nut must be fully tightened with a wrench — finger-tight is insufficient for IP67. A partially tightened coupling nut will not compress the O-ring sufficiently to achieve IP67 sealing.

What is the maximum cable OD for GX12 connectors?

GX12 cable entry seals typically accommodate cable OD of 4–7mm. Verify the cable OD against the specific connector’s seal range before ordering. Using cable that is too thin allows water ingress around the seal; cable that is too thick will not fit through the seal nut. For cables outside the standard range, use a cable gland adapter.

Can I use GX12 docking connectors for 24V DC industrial applications?

Yes. The 250V AC/DC rating covers 24V DC industrial control voltages. The 5A per contact rating (2–5 pin) supports most 24V sensor and actuator current requirements. For higher current or IP67 requirements with more robust mechanical connection, consider Deutsch DT series connectors (13A per contact, IP67, -55°C to +125°C).

How do I identify pin 1 on a GX12 connector?

Pin numbers are marked on the insulator face of the connector. On most GX12 connectors, pin 1 is identified by a small “1” molded into the insulator adjacent to the contact. Use a flashlight and magnification if needed — the markings are small. Always verify pin numbering against the connector’s insulator markings before wiring — do not rely on assumed conventions.

Typical Applications

• Agricultural equipment: Sensor and actuator connections on tractors and implements
• Outdoor industrial machinery: Mid-harness connections on equipment exposed to rain
• Marine: Deck equipment connections, navigation instrument wiring
• Construction equipment: Sensor connections on excavators and mobile equipment
• Outdoor lighting: Control connections for outdoor LED lighting systems

Package Contents

1 set — GX12 waterproof docking connector: male plug + female socket (pin count as selected). O-ring, cable entry seals, and coupling nut included.