Electrical & Wiring · My build kit

Nilight Five-Pin Automotive Relay Kit

Relays and socket harnesses were among my van's electrical purchases. The kit belongs to the switching components, while the roof-wiring photographs show the separate physical work of routing device cables.

By · Camper Van Freedom

Read my build notes ↓

The Item in My Kit

I bought Nilight Five-Pin Automotive Relay Kit as part of my camper van equipment.

Relays and socket harnesses were among my van's electrical purchases. The kit belongs to the switching components, while the roof-wiring photographs show the separate physical work of routing device cables.

Comparing the Socket and Mounting Body Around the Relay

  1. I grouped roof-device wires and routed them through local boxes.
  2. The relay and socket purchases were a separate switching-hardware category.
  3. My Nilight kit paired five-pin relays with wired interlocking sockets.
A grouped roof-wire connection before the final conduit work.
A grouped roof-wire connection before the final conduit work.
The larger roof enclosure during my cable-entry work.
The larger roof enclosure during my cable-entry work.

My Takeaway from This Job

The relay comes with a physical socket and mounting arrangement, not just a pin count. Nilight groups interlocking sockets, True MODS adds a sealed body and tab, and the other Nilight option provides another harness package.

Relay pin count, socket body and mounting format are separate attributes.

Product Details And Van-Build Uses

SpecificationProduct Detail
Model50003R
Coil12V
Contact LayoutFive-pin SPDT
KitFive relays and harness sockets

The 50003R kit pairs five-pin automotive relays with matching interlocking sockets and wiring leads. Its SPDT arrangement has a common contact and two switching paths, which is different from a simple four-pin on/off relay. For a van accessory circuit, a relay provides a separate control connection from the switched load connection. The manufacturer’s product illustrations help identify the terminals and harness arrangement when tracing a circuit later. Keeping the relay model and its socket together in the component list is useful for lighting controls and other accessory projects where several similar relay blocks might sit next to one another.

Manufacturer Product Reference

Nilight 90123F: Six-Gang Switch Panel And Connections

Nilight 50065L: Twelve-Way Fuse Block Layout

Is This The Four-Pin Relay Kit?

No. Model 50003R is the five-pin SPDT kit with matching five-wire sockets.

Alternative products

Two Alternatives to Compare

True MODS uses a sealed relay-and-socket format, while the other Nilight harness set provides another grouped relay option; housing, lead size and mounting style distinguish them.

ProductWhat distinguishes itPurchase link
Nilight Five-Pin Automotive Relay KitFive-pin relays with wired interlocking socket bodiesView on Amazon
True MODS Five-Pin Relay and Socket (alternative)Five-pin relay/socket with sealed housing and mounting tabView on Amazon
Nilight Relay And Socket Harnesses (alternative)Grouped automotive relays with socket harness leadsView on Amazon
True MODS Five-Pin Relay and Socket

True Mods Five-Pin Relay and Socket

This five-pin relay is paired with a wired socket and sealed housing. A mounting tab provides an attachment point for the assembly.

View on Amazon
Nilight Relay And Socket Harnesses

Nilight Relay and Socket Harnesses

These automotive relays use a control signal to switch a separate circuit. The supplied sockets provide wire leads for connecting each relay into a wiring assembly.

View on Amazon

Questions from My Build

What Connected the Roof Equipment to the Van Entry?

A PVC conduit layout with boxes, fittings and cable glands.

What Did I Do at the Small Junction Box?

I drilled the box for a threaded PVC fitting and arranged the light-wire connections inside that part of the route.

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