Relay 5pcs 5Pin Relays with 5Pin Harness Sockets
Relay 5pcs 5Pin Relays with 5Pin Harness Sockets
Relay 5pcs 5Pin Relays with 5Pin Harness Sockets
Relay 5pcs 5Pin Relays with 5Pin Harness Sockets
Relay 5pcs 5Pin Relays with 5Pin Harness Sockets
Relay 5pcs 5Pin Relays with 5Pin Harness Sockets
Relay 5pcs 5Pin Relays with 5Pin Harness Sockets
Relay 5pcs 5Pin Relays with 5Pin Harness Sockets

5pcs 5Pin Relays with 5Pin Harness Sockets

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30 Days Returns

Nilight will accept returns for up to 30 days from the date of purchase. Please include all original items in your return shipment. Incomplete returns may not be eligible for a full refund. Returns within 30 days or purchase will receive a full refund for the purchase price of the product.

No returns will be accepted after 30 days. Nilight will provide a return shipping label upon request.

Non-contiguous US residents and International residents – including Alaska, Hawaii, Canada and Mexico – are responsible for return shipping charges. Refunds will be applied to the original payment method that was used. Refunds are generally issued within 5-10 business days of Nilight receiving all returned goods. Your bank may require additional processing time to reflect the refund in your account.

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2024 Product Guide

About this item

  • High switching capability: Normally open 40A/14V DC and normally close 30A/14V DC. Suitable for Nilight LED light bar wiring harness kit
  • Premium quality: Durable relay and harness socket with 5 wires; Made with high-grade materials to ensure superior quality and long lifespan
  • Male-female slot design: Unique male-female slot design, easy to connect the relay with harness socket, clean and neat after installation
  • Easy wiring: The relay sockets come in different colors for loads/accessories, simple and convenient wiring
  • The package includes 5 x relay and 5 x relay sockets with wires. Fit type: Universal fit

Nilight Interlocking Relay Harness


Contact Capacity:
Normal Switching Capacity:
-NO 40A 14VDC.
-NC 30A 14VDC.
Max. Switching Current: 40A.
Max. Switching Voltage: 30V DC.
Max. Switching Power: 560W.
Wiring: PIN87 Yellow (To Light/Accessory), PIN 87a Red.
PIN86 White (To Switch), PIN30 Blue (Positive), PIN85 Black (Ground).


5 Pin relay

Circuit Protector

Premium contactor with Normally Open@40A/14V DC and Normally Close@30A/14V DC. Max. 40A contact switching capability of the copper coil.

Easy wiring relay

Premium Wire

The wire of this harness is of high quality. Good electrical conductivity, high temperature, melting resistance, and outstanding bending performance.

Interlocking relay

Safe Connection

Unique interlocking design provides simple and easy installation. The relay sockets come with color-labeled wires for accessories wiring, safe and convenient.

Nilight Relay Harness

Customer Reviews

Based on 157 reviews
Leo Goldner
Great value

Relays work well and have a long life.

Ana Cole
Great price for what you get!

Ordered this for a small project on my car. I found these for cheaper than buying one at a time from the auto store. Another useful feature is if you need more than one they interlock!Would buy again!

Robert Cassin
high quailty heavy gauge wire

these are better than I expected

Agustina Hills
Good relay's, awesome price

Easy to install, great price

Amelia Stoltenberg
One quit working after the first use

Been great except for one, stayed in the open position after the first use.

Elenor Roob
Great Replays

Worked as described and were well packaged.

Shanon Bashirian
Good replacement in a pinch for GM 13306942

Had my fan speed control relay act-up on me, so I needed a replacement. Would take too long to get a real GM unit, so ordered this set. Nice that they come with 5 relays and wire harnesses, though I don't currently have a need or use for the harnesses. The only thing was that I had to remove the metal tab the relay comes with, or else my fuse box wouldn't close. Fortunately, the metal tabs just slide in/out.

Eliza Ritchie
great for the price

very satisfied

Zetta Wolff
Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket

Easy to wire and marked well. Solid product.

Domenick Douglas

Worked great on my e fan project

Parts ordered must be in stock for the order to ship. Approximately 98% of all orders placed leave our warehouses the same day (not including weekends & holidays). Even with our huge inventory, we may run out of an item. If this is the case you will receive an email with an expected availability date.

DELIVERY DAYS: 2-6 Business Days (More Time and Extra Fee for * Heavy and Big-size Products ) Processing Time: 1-2 Business Day

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