Push on terminals

[The Bear]

Hi

I have bought an NVR switch from Axi which is connected via push on terminals (supplied). Like these

http://www.thesitebox.com/Category/5732 ... h-ons.aspx

Probably a daft question but how do I join the wire onto the terminal, on the coloured end.
Is it just case of sticking the stripped wire in the hole and squeezing with pliers? Just doesn't seem that would be that strong.

Mark

 

[Pvt_Ryan]

Yes that is how it's done..

They are quite strong (as long as you crimp strongly), and remember you don't take them on and off very much if at all so they dont need to be _that_ strong.

 

[studders]

For 240v I'd be inclined to crimp them properly with one of these.

 

[The Bear]

Thanks guys, just needed to check

Mark

 

[ondablade]

It's no doubt best to get a proper crimping tool, but they are quite expensive - not to mention that figuring the following out and getting all the bits cost me the most of a week's delay while wiring the inverter on my dust system fan drive.

There's at least two types about - one for crimping pre-insulated plastic covered terminals like the one in your picture, and another for uninsulated stuff like ferrules/sleeves.

The better ratchet types won't release until the crimp is complete, and form the crimp into a nice regular shape giving lots of joint area. There are cheaper ones that just drive a ding into the side of the tubular sleeve. I'd be wary of the cheapies, although it presumably works are they are quite widely on sale.

As well as deciding whether or not you need the type to suit insulated or uninsulated terminations, you also need one that will handle terminations matched to your cable size. (the terminals must be the right size for the cable too) The latter as you probably know is designated in square millimetres or mm2.

Look at the markings on the side of the tool, or on the pack. The type for uninsulated cable just lists the size in the range of mm2 - e.g. mine is 0.5 - 6mm2. The type for the insulated terminals seems to use a coloured dot on the side of the jaws which matches the colour of the plastic insulator on the termination. (red, yellow etc) Each colour corresponds to a cable size, although I can't quite remember which is which.

Make a test crimp and pull test it to be sure you have a good joint.