Fastronix Solutions 50/30A Weatherproof Automotive Relay & Socket Kit — Sealed, Vibration-Resistant with 12" Copper Leads

The Fastronix 50/30 Amp Weatherproof Automotive Relay and Socket Kit is a sealed, vibration-resistant relay assembly designed to switch high-current accessories safely in wet and rough environments.

Designed for automotive and off-road electrical projects, this kit pairs a heavy-duty, OEM-style locking relay with a weatherproof socket that includes long copper leads and a mounting tab. It’s built to handle high loads for lights, winches, and other accessories while keeping moisture and vibration from interrupting the circuit. The wiring diagram in the package simplifies installation for both DIYers and professional installers.

How does this relay handle high-current accessories?

The relay uses a dual-rating design that supports heavy loads: the normally open contacts are rated up to 50 amps, while the normally closed side is rated to 30 amps. The internal contacts and robust construction let you safely switch headlights, fog lamps, or auxiliary power without running excessive current through factory switches.

• 50A normally open contact suitable for primary power feeds
• 30A normally closed contact for secondary circuits or fail-safe designs
• OEM locking style ensures secure mating and steady contact
• Vibration-resistant internals for rugged vehicle use

Is it safe to use in wet or dusty conditions?

Yes — both the relay and its socket are sealed to resist water and dust intrusion, reducing the chance of corrosion or shorting in harsh environments. The sealed housing and protected terminals help maintain reliable operation on off-road vehicles, marine rigs, or exposed engine compartments.

• Weatherproof construction guards against moisture and grit
• Sealed socket prevents contaminants from reaching contacts
• Vibration-resistant design keeps connections stable under movement

What wiring and installation features are included?

The socket arrives with 12" copper leads already attached so you can quickly integrate the relay into your vehicle wiring. The kit includes three primary 12 AWG power leads for high-current lines and two 18 AWG coil leads for control, plus a mounting tab and a clear wiring diagram for straightforward hookup.

• (3) 12 AWG copper primary leads for power distribution
• (2) 18 AWG coil leads for trigger/signal wiring
• 12" lead length for flexible placement during installation
• Mounting tab and printed wiring diagram included

Why choose this kit for off-road lighting and accessories?

The combination of high current capacity, sealed construction, and OEM-style locking fit makes the Fastronix kit well-suited for powering auxiliary lighting, winches, compressors, and other demanding accessories. It reduces voltage drop and keeps sensitive switches isolated from heavy loads, improving both safety and component longevity.

• Reduces wiring heat and voltage drop by using proper gauge leads
• Protects factory switches from high-current wear
• Durable under vibration and exposure common in off-road use

Who is this for? This relay and socket kit is aimed at vehicle owners, mechanics, and fabricators who need a compact, reliable switching solution for high-current accessories. It fits DIYers upgrading lighting or accessories and professionals wiring fleets, off-road rigs, or utility vehicles who require sealed, vibration-tolerant components and clear installation guidance.