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HomeTips & GuidesSpade Connectors: How Do They Work

Spade Connectors: How Do They Work

Spade connectors are vital in setting up many electrical connections, as seen in different applications. 

For example, if you work with automotive systems or do home wiring, you’ll be familiar with these connections and where spade connectors come in. 

Similarly, knowledge of spade connectors and how they work is crucial to maintaining safe and efficient electrical setups. It is also important to set up reliable and functional electrical connections.

A bunch of spade connectors

(A bunch of spade connectors)

What Is A Spade Connector

A spade connector, or fork/spade terminal, is a type of connector that you use for electrical wiring purposes. 

It provides an effective means to terminate a single wire and connect it to a screw or stud-type terminal block. Also, this method allows you to easily connect and disconnect electronic components from circuits quickly. Afterward, you can connect the terminal/connector with the wire to a light fixture, switch, or any suitable electrical device.

For its design, a spade connector uses a flat, circular, or U-shaped connector that provides a hole to attach to the wire. 

A fork or U-shaped spade terminal

(A fork or U-shaped spade terminal).

Spade terminal connectors

(Spade terminal connectors)

Spade Connector Types

There are different types of spade connectors used today. We’ll discuss a few below.

Standard Spade Connector

These spade connectors provide value in low-power applications. Furthermore, they are flat and blade-like, with one end spotting a circular or rectangular opening. 

Power Spade Connectors

They come in larger sizes for use in higher-power applications, like in grounding applications. 

Quick Connect Spade Connectors

Also known as quick-disconnect terminals, these connectors help create very fast connections that you need within short durations. 

Polarized and Non-Polarised Connectors

These connectors are popularly known as “Y and T” connectors, respectively, and are used when connecting two pieces of equipment of different polarities. However, you mostly use these connectors by inserting them into terminals and studs in any direction. 

Flag Terminal

You mostly use this connector whenever you need to connect two pieces of equipment with different power ratings and signals. 

Flexible Spade Connector

Use this connector when you need to make a quick connection without going through the trouble of using a wire-lacing connector. 

Solder-on Spade Connector

With Solder-on spade connectors, you can solder the wire directly to the connector to create a solid, durable connection. 

Insulated and Uninsulated Connectors

Insulated spade connectors have rubber or plastic covering over their metal parts to protect against electric shocks and accidental short-circuiting. 

Insulated spade terminals

(The Insulated spade terminals)

Uninsulated spade connectors employ a strictly metal construction when insulation is not necessary, or space is limited. 

non-insulated spade terminals

(non-insulated spade terminals)

Crimp Spade Connectors

These connectors help create a secure and permanent connection by crimping onto the wire. They are also called “T” or “3 prongs” connectors.

A crimping tool

(Crimp spade connector)

How Do You Connect Spade Terminal Connector

Here’s a well-detailed step-by-step guide on properly connecting Spade Terminal connectors. 

Step 1

Gather all the materials you need – wire strippers, crimping tools, screwdriver, or heat gun(if you’re using a heat-shrink insulated connector)

A crimping tool

(A crimping tool)

Step 2

Strip the insulation off the wire along the end and the length you need for the terminal connection. Now, twist the exposed wire’s end clockwise so no stray strands stick out beyond the stripped portion.

stripping wires off their insulation

(stripping wires off their insulation)

Step 3

Choose the spade terminal connector that matches your wire’s gauge and the screw or stud terminal you’ll be connecting to.

Step 4

Connect it properly by inserting the wire’s stripped end into the barrel of the spade connector. Scrimp the barrel with the wire tightly so it doesn’t detach while using the electrical device.

Step 5

After crimping, gently tug the wire to check if it is still tightly secured in place by the connector. Next, cover the connectors properly and fit tightly to complete the setup.

spade/fork connectors on a junction box

(spade/fork connector on a junction box)


There are so many types of spade devices available to use today, and they provide many advantages in their effectiveness. 

For the best part, you don’t need any serious technical proficiency to use a spade connector.

Hi I am Christa, sales manager of Cloom.

I have extensive expertise and experience in wiring harnesses and I believe I can help you.

And we have a very professional technical team who can clearly understand the customer’s needs and give professional suggestions and solutions after receiving the drawings.

If you also have wiring harness needs, please send me the drawing so that we can give you our quote and start our business.

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