The Yellow Square lugs set holds 600 non-insulated EN ferrules in tinned brass for terminating stranded wire of 0.5 / 0.75, 1.0 / 1.5, 2.5 and 4.0 / 6.0 mm² (AWG 22–10). The ferrules are fitted with a crimper and rated for operating temperatures up to +105 °C. All sizes sit in a 7-section case.
Specifications
| Parameter | Value |
|---|---|
| Quantity per pack | 600 pcs |
| Type | Cable ferrule, EN bootlace terminal |
| Insulation | Non-insulated |
| Material | Brass |
| Finish | Tinned (electrolytic tinning) |
| Design | Straight |
| Colour | Grey |
| Wire cross-sections | 0.5 / 0.75, 1.0 / 1.5, 2.5, 4.0 / 6.0 mm² |
| AWG gauge | 22 / 20, 18 / 16, 14, 12 / 10 |
| 0.5 / 0.75 mm² (AWG 22 / 20) | 200 pcs |
| 1.0 / 1.5 mm² (AWG 18 / 16) | 200 pcs |
| 2.5 mm² (AWG 14) | 100 pcs |
| 4.0 / 6.0 mm² (AWG 12 / 10) | 100 pcs |
| Operating temperature | Up to +105 °C |
| Case | 7 sections |
| Fitting | Crimping with a crimper or press pliers |
| Condition | New |
What you get
- A tidy wire end — the ferrule holds stranded wire together so it does not splay under the terminal screw.
- Stock for big jobs — 600 pcs in the set.
- Sizes from signal lines to the distribution board — 0.5 to 6 mm².
- An oxidation-resistant surface — brass with electrolytic tinning.
- Use in warm enclosures — operating temperature up to +105 °C.
- A slim fit in crowded terminal blocks — no insulation means less bulk.
- An organised workbench — a 7-section case.
Who it is for
Electricians and panel builders wiring breakers, sockets and busbars, and DIYers reworking home wiring who own a crimping tool.
Who should look elsewhere
Anyone who needs insulated ferrules with a coloured collar to identify the size at a glance. The ferrules cannot be fitted properly without a crimper or press pliers. There are no sizes for wire thinner than 0.5 mm² or thicker than 6 mm².
Uses and compatibility
The ferrules are for terminating stranded wire before connecting it to breakers, sockets and busbars. The 0.5 / 0.75 mm² sizes suit signal lines and lighting, 1.0 / 1.5 mm² household wiring and sockets, 2.5 mm² heavier loads and water heaters, and 4.0 / 6.0 mm² main breakers and distribution board equipment. The non-insulated design is handy in terminal blocks with a tight pitch between contacts.
What is in the box
Non-insulated ferrules — 600 pcs, and a 7-section case.
Questions and answers
Which ferrule should I use for a socket?
For household wiring and sockets the set includes 1.0 / 1.5 mm² (AWG 18 / 16) ferrules — 200 pcs of them.
What do I crimp them with?
The ferrules are fitted by crimping with a crimper or press pliers. The tool is not included.
Why choose ferrules without insulation?
Without an insulating collar the ferrule is more compact, so it fits terminal blocks with a tight pitch between contacts.
Can they handle the heat inside a distribution board?
The operating temperature of the ferrules is up to +105 °C.









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