Fastronix Solutions Weatherproof 50/30A Automotive Relay & Socket Kit — Sealed OEM Locking, 12" Leads

The Fastronix 50/30 Amp Weatherproof Automotive Relay and Socket Kit is a sealed, vibration‑resistant relay assembly with a locking OEM style plug and 12" copper leads designed to control high-current automotive accessories.

This kit gives you a heavy‑duty relay solution for switching lights, winches, compressors, fans and other vehicle loads where durability and dependable connections matter. Built with an OEM locking relay housing, sealed construction, and a mounting tab, the kit is intended to simplify installations while protecting electrical contacts from moisture and vibration commonly encountered in trucks, off‑road rigs, marine applications, and service vehicles.

How does this relay handle high current accessories?

The relay provides separate ratings for its contacts: 50 amps when the normally open circuit is closed, and 30 amps for the normally closed circuit. That makes it suitable for primary power switching of headlights, auxiliary lamps, and other accessories while still supporting secondary circuits.

• 50A rating on normally open contacts for heavy loads
• 30A rating on normally closed contacts for smaller continuous circuits
• Sealed design reduces risk of corrosion under load
• OEM locking style ensures secure contact under vibration

What wiring and hardware come with the kit?

The socket includes 12" copper wire pigtails: three primary 12‑gauge leads for high current connections and two 18‑gauge coil leads for the relay trigger. A wiring diagram and a mounting tab are included so you can complete a clean installation without hunting down extra hardware.

• Three 12 AWG copper leads for power and load connections
• Two 18 AWG coil leads for signal/trigger wiring
• 12" pre‑attached leads to simplify routing and terminations
• Printed wiring diagram and a metal mounting tab for secure attachment

How does the weatherproof and vibration‑resistant design improve reliability?

The sealed relay and socket prevent moisture, dust, and road grime from penetrating the contacts and coil, reducing corrosion and intermittent faults. A vibration‑resistant design plus the OEM style locking mechanism keep the relay seated during off‑road use or heavy vibrations.

• Fully sealed housing protects contacts from moisture
• Locking plug prevents accidental disconnects on bumpy terrain
• Vibration‑resistant internals for long service life in harsh environments
• Ideal for exposed engine bays, under‑body mounts, and accessory pods

Will this kit fit my vehicle and accessories?

The relay uses a common OEM locking footprint and standard terminal layout, making it compatible with many aftermarket harnesses and factory wiring setups. Because leads are pre‑terminated and 12" long, the socket is ready for direct splicing or termination to ring terminals, inline fuses, or distribution blocks.

• Common OEM footprint for broad compatibility
• Pre‑wired leads allow fast connection to ring terminals or butt connectors
• Works with aftermarket light bars, winches, compressors and more
• Mounting tab fits typical relay brackets and chassis surfaces

Who this is for: Installers, technicians, and DIY vehicle owners who need a rugged, weatherproof relay solution for powering high‑current accessories. If you outfit trucks, ATVs, Jeeps, RVs, or work vehicles with auxiliary lights, fans, pumps, or other electrical devices and you want a reliable, sealed relay with factory‑style locking and pre‑wired leads, this kit is designed to save installation time and reduce failure risk in demanding conditions.