Car care
10-Pack 12V SPDT 5-Pin Automotive Relays (30/40A) — 5-Pin Switch Relay
Star rating
4.5/ 5
Customer reviews
11
- 5 stars 8
- 4 stars 1
- 3 stars 2
- 2 stars 0
- 1 star 0
Brand
Nilight
Product description
This listing includes ten identical 12V SPDT (single pole double throw) electrical relays with a five‑pin layout. Each unit is built in a standard 5‑pin footprint to plug into common relay sockets and adapter blocks used in automotive, marine, and industrial wiring.
Electrical specifications are: intended coil voltage 12 VDC, must-operate coil range roughly 6–8 VDC, coil power about 1.8 W, and coil resistance around 80 Ω. The relays have a maximum applied voltage of 15.6 VDC and a stated maximum operating voltage up to 27 VDC. Contact switching current is rated to handle up to approximately 40 A, suitable for many lighting and accessory circuits. Insulation resistance is specified at 100 MΩ.
Physically, the relays use a molded plastic housing with metal terminals compatible with standard automotive relay sockets. They match the common 5‑pin relay form factor so they fit typical relay trays and harnesses. Typical uses include switching headlamps, auxiliary lights, winches, power windows, pumps, and other 12V accessories in cars, trucks, RVs, and boats.
Pros
- Ten-relay pack for multiple replacements
- Standard 5-pin form factor for broad compatibility
- High switching current rating (up to 40A)
Cons
- May struggle in very high temperature environments
- Not guaranteed waterproof for submerged use
- Build quality varies slightly between units
VerdictThis 10-pack delivers a cost-effective way to replace or upgrade multiple 5‑pin relays in vehicles and marine gear. They offer a standard form factor, a 12V coil, and up to 40A switching capacity, making them useful for lighting, motors, and accessory circuits. Expect solid value and broad compatibility, though extreme heat and moisture may shorten some units' life in demanding environments.
Customer reviews
-
Mike 5/5
Good value and sturdy
Cheaper than other sources yet still solid. Wiring and installation were straightforward and the units feel durable.
-
James Marchitto 5/5
Fixed my motorhome electrical issue
I replaced a single bad relay, but buying the pack let me swap several in my RV and that cleared the problem.
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Michael SP 5/5
Worth the upgrade over cheap parts
Far better than the junk relays I had before. These feel heavier and more robust, not thin plastic. I’ll keep spares on hand.
-
sean wilson 5/5
Does the job
Functions as expected.
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Michael Mallory 5/5
Versatile and dependable
I use these relays for many projects and they’ve held up well; I haven’t had one fail in my applications.
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Robert B. 5/5
Ready to install
Replaced the 5‑pin relays on my zero‑turn mower with no issues so far.
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Jon 4/5
Repeat buyer — works for many tasks
This is my second order. I used them for switchbacks, off‑road light control, and accessories. They fit 5‑pin adapters and have performed fine.
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Hassan ali 3/5
Not as described
Doesn't match the description!
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Edward scissor hands 3/5
Okay but heat is a concern
Decent for the price, but I had to swap two after running in 110°F conditions. Hard to tell if they were faulty or just heat‑sensitive.
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Jorge 5/5
Good cheap option for window installs
Excellent price-to-performance. Hoping they stay reliable for my power window setup.
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ARMANDO RUSA 5/5
Used successfully in heavy gear
Surprised by the quality for the cost. Installed them on heavy machinery and they’ve run without trouble.
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