Earth Bars

All our Earth Bars are manufactured in our dedicated UK factory from raw stock and go through a series of manufacturing processes by our skilled staff, thereby enabling us to manufacture and assemble any Earth Bar with consistent quality control. We use quality raw stock materials to British Standards and as with all our products, the Earth Bars are manufactured and packaged to an exceptional standard.
Why choose a Kingsmill Earth Bar?
- Powder coated bases can be supplied to reduce the risk of corrosion
- Pre-drilled fixing holes for ease of installation (these can be threaded if required)
- We use the highest quality raw materials
- We offer an extensive range
- Where you can’t find your requirement, we can manufacture to your exact specification
- The manufacturing process ensures you receive a quality product consistently

Tinned Earth Bars

Why choose a Tinned Earth Bar?
Earth Bars are manufactured as standard with plain exposed copper bar, this is fine and does not cause any problems as generally the Earth Bars are located on the inside of a building, usually inside a nice, dry, warm substation/communication room or neatly situated indoors, out of the way in a dry location. What happens when this is simply not possible or practical? When the Earth bar has to be located at an external site, an area that is more aggressive or a location that has higher moisture or humidity?
The answer is to use a Tinned Earth Bar!
Understanding Tin/Tinning
Tin, a soft white metal can easily be polished, scratch brushed or flow melted to give a bright finish. It is non-toxic and is not greatly affected by the organic acids. Sulphur compounds do not readily tarnish tin. It is not impaired by either air or water, but reacts with hydrochloric acid to form stannous chloride. Tin is one of the less susceptible metals to corrosion attack.
Benefits of a Tinned Earth Bar
Tinning a copper bar protects against atmospheric corrosion and hence provides longer life when exposed to corrosive atmospheres.
Tinning protects the copper and protects the Earth Bars from the for-mation of copper oxide, tin effectively prevents oxidation!
Tinning an Earth Bar is an excellent solution practically speaking, be-cause it protects the copper, increases longevity and has reasonably low resistance.
Tinned Earth Bars could be used in external applications or where at-mospheric conditions are more severe and aggressive than normal ie high moisture content areas, high humidity etc.
A tinned Earth Bar resists water corrosion and provides enhanced con-ductivity, due to its improved water resistance, tinned copper Earth Bars are often used in various marine projects.
Key Features of a Tinned Earth Bar
- Manufactured from 50x6mm Tinned Hard Drawn Copper Bar
- M10x35 A2 Stainless Steel Connection Bolts
- Zero Halogen, Glass Reinforced Polyester Insulators c/w M10 Brass Inserts
- Black Powder Coated Steel Base (Hot Dipped Galvanised Steel Base could be supplied if requested)
- Pre-drilled base holes for ease of installation
Material Specification
Standard Earth Bars

Item no. | Description | Material | Weight (kg) |
---|---|---|---|
1 | M10 x 35mm hex set | Brass | 0.03 |
2 | M10 full nut | Brass | 0.01 |
3 | M10 flat washer | Brass | 0.002 |
4 | M10 x 40mm all thread | Brass | 0.02 |
5 | 50 x 6mm copper bar | HDHC copper | 2.67/m |
6 | M10 x 35mm insulator | Reinforced polyester c/w brass inserts | 0.08 |
7 | M10 spring washer | BZP mild steel | 0.01 |
8 | M10 x 12mm hex set | BZP mild steel | 0.02 |
9 | 100 (W) x 15mm (H) base | Powder coated steel | 1.00/m |
Tinned Earth Bars

Item no. | Description | Material | Weight (kg) |
---|---|---|---|
1 | M10 x 35mm hex set | A2 stainless steel | 0.03 |
2 | M10 full nut | A2 stainless steel | 0.01 |
3 | M10 flat washer | A2 stainless steel | 0.002 |
4 | M10 x 40mm all thread | A2 stainless steel | 0.02 |
5 | 50 x 6mm copper bar | HDHC copper | 2.67/m |
6 | M10 x 35mm insulator | Reinforced polyester c/w brass inserts | 0.08 |
7 | M10 spring washer | BZP mild steel | 0.01 |
8 | M10 x 12mm hex set | BZP mild steel | 0.02 |
9 | 100 (W) x 15mm (H) base | Powder coated steel | 1.00/m |