Crimps come down to two things: the conductor size you’re working with and the finish the job needs. Insulated versions are usually the quick pick for general terminations, while uninsulated types suit tighter spaces or a more compact connection. Ring crimps hold where the fixing must stay put. Spade and fork styles make removal easier later. If you’re matching existing work, check the format first - that’s where most call-backs start.
Crimp Terminal Female Spade - 6.35mm 1.5mm²-2.5mm² 15A Blue 100 Pack
Blue female spade crimp terminal, 6.35mm, 15A, 100 pack
Swann Butt Splice Terminal - 1.5mm² - 2.5mm² Blue 27A
Blue butt splice terminal for 1.5mm² to 2.5mm² cable, 27A
Your Esssentials Copper Uninsulated Cable Lugs Flared Entry - 16mm² 5mm Hole
Copper uninsulated cable lugs, flared entry, 16mm², 5mm hole, pack of 10.
Crimp Terminal Female Spade - 6.35mm 4mm²-6mm² Yellow 100 Pack 24A
Yellow 6.35mm female spade crimp terminal, 4-6mm² wire, 100 pack, 24A
Your Esssentials Copper Uninsulated Cable Lugs Flared Entry - 150mm² - 10mm Hole
Copper uninsulated cable lug for 150mm² conductor, 10mm hole
Insulated Crimp Ring Terminal - 5.4mm, 4mm²-6mm², 48A, Yellow, 100 Pack
Yellow insulated crimp ring terminal, 5.4mm stud, 4–6mm² wire, 48A, 100 pack.
Your Esssentials Fully Insulated Female Spade Crimp Terminal - 4.75mm 0.5mm²-1.5…
Fully insulated female spade crimp terminal for 0.5-1.5 mm² cable, 4.75 mm tab, …
SWA Tube Terminal - 70mm M10 Copper
70mm copper tube terminal with M10 stud and inspection window
Swann Insulated Bootlace Ferrule - 6mm² Green T Range French
Swann green 6mm² insulated bootlace ferrule
Your Esssentials Insulated Crimp Terminal - 13mm Blue ring
13mm blue vinyl-insulated copper ring crimp terminal
Start with the space you’ve got and how the connection needs to sit. In a crowded enclosure or tight panel, smaller crimps save grief because bulky sleeves and oversized barrels get in the way. If the termination may be disturbed, pick a form that stays put. If it needs to come off again, choose the layout that gives you access without fighting the fixing. Most call-backs I’ve seen come from the wrong size or a poor match to the job, not the crimp itself.
Insulated and uninsulated crimps are usually the first split. Insulated versions suit quicker general terminations, with the sleeve taking some of the strain. Uninsulated crimps are the neater choice when space is tight or you are finishing inside a panel.
After that, the terminal shape does the real sorting. Ring crimps hold the fixing in place. Spade or fork crimps make more sense when you may need to lift the connection again. Cable crimps, wire crimps and electrical crimps are the main formats you are choosing between, and crimp connectors are the broader label when you want a straight join rather than a fixed terminal. If you are matching a job out across Cable & Cable Management, that is the point to narrow it down. The wrong layout usually causes the comeback, not the crimp itself.
Start with conductor size and the finish you need. Then check how much room you’ve got, and whether the joint needs to stay fixed or come off again.
Insulated crimps give quicker identification and a bit of protection around the barrel. Uninsulated types suit tighter spaces or a neater assembly where every millimetre matters.
Ring crimps stay put on a fixed point. Spade crimps make more sense when the connection may need to come off later.
If the job sits in conduit or a tighter run, Metal Conduit & Accessories can push you towards slimmer terminals. Check Cable before you order as well. A poor match there is what usually brings the call-back, not the crimp.
Once you’ve picked the crimps, the next call is what finishes the run and keeps the job tidy. If the cable is still exposed, you are usually into cable management, cable sleeving or cable ties rather than more connectors.
Where the run passes through metalwork, glands and grommets matter more than another terminal. On bigger jobs, label printing saves time at test and handover, and electrical tape still gets used for marking and dressing. Most of the comeback comes from the surrounding finish being left loose, not the crimp itself.









