How to Solder Two or More Wires Together

Whether or not your wire is simply too quick, it’s essential break up a connection, or you have got a restore to carry out, figuring out how you can solder wires collectively is a necessary talent for any electronics fanatic. Let’s check out the steps it’s essential take to solder two wires collectively—or three or extra wires if wanted.

Step 1: Reducing & Stripping the Wires

For step one on this course of, it’s essential minimize your wires to measurement and strip their ends to reveal the steel cores inside. Being beneficiant with the lengths of wire you employ can save complications down the road.

wires stripped

As proven within the picture above, use your wire cutters/strippers to take away 2cm of insulation from each of your wires, being cautious to not minimize the wires right through. Gently twisting the ends of every wire will make them simpler to work with.

Step 2: Making use of Warmth-Shrink Tubing

Including heat-shrink tubing to your wires might solely be potential earlier than you solder them collectively, as the opposite ends of the wires could also be hooked up to one thing. Merely slide the heat-shrink tubing over one of many wires and let it relaxation.

Step 3: Twisting the Wires Collectively

This step is important to the energy of your joined wires, and this makes it essential that you just take care to do it accurately.

For Two Wires

soldering two wires

Place the wires in order that the information kind an X form, similar to the picture above. From this place, you possibly can rigorously twist every wire across the different, getting into reverse instructions with every wire to make sure a powerful connection.

For Three or Extra Wires

Soldering three or extra wires collectively is just like soldering two, however it’s essential plan forward to just remember to could make a powerful connection between every wire. We can be soldering three wires collectively in a Y form.


two wires wrapped

Begin by inserting two of your wires subsequent to at least one one other, with their stripped ideas overlapping barely, like within the photograph above. Twist the ends of those wires collectively earlier than inserting the third wire between them, like within the photograph under.

three wires together

Following this, you possibly can twist the third wire across the different two to kind a powerful connection.

Step 4: Soldering the Wires


Soldering wires collectively is normally best with a broad soldering iron tip, as this offers you a big floor space to warmth your wires. You should use rosin flux to enhance the adhesion of your solder to the wires, although we discover that this isn’t crucial with the wires that we’re utilizing.

Press your soldering iron tip into the uncovered wires for a second or two to warmth them up. As soon as heated, you possibly can start to feed solder into the joint between your wires, being cautious to let solder sink into the wires because it melts. You might have to show your wires a few times to get a good unfold.

For some extra soldering pointers, take a look at our information on studying how you can solder with easy ideas and initiatives.

Step 5: Heating the Warmth-Shrink Tubing

solder wire with heatshrink

After you have completed soldering, will probably be time to carry out your ending touches. Slip your heat-shrink tube over the joint you have got simply made earlier than utilizing a warmth gun to seal it to the wires. You must now have a wonderfully soldered, protected joint in your wires.

Soldering Two or Extra Wires Collectively

As you possibly can see, soldering wires collectively is straightforward with the proper know-how. These expertise can take some observe, making it price discovering some outdated wires to affix earlier than you do that for an essential undertaking.

Three stages of achieving a successful soldered joint.

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