LP20 3-Pin Waterproof Aviation Connector

LP20 3-Pin Waterproof Aviation Connector – 20A Power Connection with Screw-Lock Terminals

We build industrial waterproof connectors for a living, so we know what installers actually deal with on site. The LP20 3-Pin Waterproof Aviation Connector is made for equipment that draws serious current — 20A per contact at 500V — where you need a connection that installs with a screwdriver, not a crimping tool. The hybrid metal-plastic housing handles the mechanical abuse, and the threaded coupling keeps everything locked down when things start vibrating.

LP20 3-Pin Waterproof Aviation Connector – Built for High-Current, Field-Wired Installations

Here's the question we hear from installers all the time: how do you terminate 12AWG cable in a waterproof aviation connector without hauling a crimper out to the job site? The LP20 3-Pin Waterproof Aviation Connector answers that. Strip the wire, insert it, tighten the screw — done. The screw clamp holds 2.5 to 4mm² cable tight, and the built-in cable gland keeps pulling force off the electrical contact.

The 3-pin layout covers the most common power scenarios: L/N/PE for single-phase equipment, or three-phase power on smaller drives. With 20A per contact and 2500V withstand voltage, there's enough headroom for motors, pumps, compressors, and industrial lighting circuits. The IP67 seal holds up in washdown areas, outdoor cabinets, and wet factory floors.

Why Screw-Lock Terminals Make Sense in the Field

Crimped connections are great when you're in a factory with the right tool sitting on the bench. Out in the field? Not so much. Someone forgets the crimper, the die is worn, or the tech hasn't been trained on that particular tool. The LP20 series uses screw-lock terminals instead. You torque it down, it stays down. The connection quality depends on your hand, not on whether someone remembered to pack the right gear.

The 12mm cable entry handles power-class cable diameters from 8 to 12mm. For a 3-pin power connector, that's the sweet spot — big enough for real current, small enough to stay compact.

Technical Specifications at a Glance

Where This Aviation Connector Actually Gets Used

The LP20 3-pin shows up where three-phase or L/N/PE power meets wet or dirty conditions. Industrial motors and pumps. Outdoor HVAC units. Construction site power distribution. Stage and event power. Marine shore power. Agricultural equipment. Anywhere you need to run 20 amps per line through a connection that gets installed in the field, not on a factory bench.

We test every batch for dielectric strength and waterproof performance. The screw terminals are torque-verified, not just visually checked. It takes extra time, but it keeps callbacks off your schedule.

Quality Control and Certifications

The LP20 series carries TUV, CE, and RoHS certifications, and we operate under ISO9001:2015. Consistent material sourcing, traceable production records, and a quality system that gets audited — not just claimed.

Quick Questions We Get Asked

Q: Can I use this for three-phase power?
A: Yes, the 3-pin layout is commonly used for L/N/PE or three-phase on smaller equipment. Check your local code for grounding requirements in your application.

Q: What cable sizes does it accept?
A: 2.5 to 4mm² (14-12 AWG) with a cable outer diameter of 8-12mm.

Q: Is IP67 enough for outdoor use?
A: For most outdoor installations, yes. IP67 handles rain, splashing, and temporary immersion. For continuous submersion, our IP68-rated variants are available.

Q: Does the screw lock loosen under vibration?
A: We've tested it on motors and pumps. The screw clamp holds torque well, and the threaded coupling keeps the housing locked.

Ready to Get Started?

For specs, custom pin counts, or samples of the LP20 3-Pin Waterproof Aviation Connector, email nick@cableinco.com. Tell us your cable size and current load — we'll confirm the right configuration.