🔌 Ground your projects with confidence and style!
The ProConnex 41309 Ground Clamp by Sigma Electric is a precision-engineered copper alloy clamp designed to securely connect bare wire to copper or steel pipes and rods ranging from 1/2" to 1". Compatible with wire gauges #10 to #2 and rebar sizes 5/8" to 3/4", it features zinc-plated steel screws for enhanced durability. UL and CSA certified, this compact, lightweight clamp ensures reliable, code-compliant grounding for professional installations.
| Material | Copper Alloy |
| Brand | Sigma Engineered Solutions |
| Item dimensions L x W x H | 2.56 x 2.28 x 0.65 inches |
| Color | Bar |
| Style | Modern |
| Tensile Strength | 5E+2 PSI |
| UPC | 031857413095 |
| Global Trade Identification Number | 00031857413095 |
| Manufacturer | Sigma Electric |
| Part Number | 41309 |
| Item Weight | 2.82 ounces |
| Product Dimensions | 2.56 x 2.28 x 0.65 inches |
| Country of Origin | USA |
| Item model number | 41309 |
| Is Discontinued By Manufacturer | No |
| Size | 1 Count (Pack of 1) |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Certification | CSA, UL |
| Included Components | Sigma Electric ProConnex 41309 Ground Clamp 1/2 to 1-Inch, 1-Pack |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |
Z**.
Worked Great
It worked exactly as expected. I used it to tie my incoming cable service to the house's ground bar.It installed easily to the ground bar and looks like it'll hold up. I'd buy again.
K**N
Solved the grounding issue
These clamps worked perfect on my 3/4 copper supply line to my house. Used to tie all grounds together.
H**Z
Fantastic Ground
This is all metal grounding, it’s very durable and is made to attach itself to grounding rod! The size is perfect and you can attach 2 wires to it easily.
A**R
Used to ground to a pipe
Used this to repair a ground on which the clamp had broken. Worked well and less hassle then driving to HD
C**.
👍🏻
Work great!
C**V
Nice
If you don't know what this item is, then you don't need it. If you do know what it is, then rest assured that it is very durable and will outlast most human beings. Also, I was able to use mine with number six solid wire.
B**E
Well-made and sturdy
An excellent way to ground your antenna
E**B
Good Ground Clamp
We had some plumbing repair and the plumber replaced some of the copper pipe with PEX. The electrical panel was located on the opposite side of the house from the water main and the panel was grounded both to a ground rod outside but also to a water line. An electrician said it wasn't really necessary to ground it to the water line in this case, but if we wanted to be extra safe, we would put a ground between the copper on both sides of the new PEX. We bought two of these and grounding wire and easily installed these. They are high quality and easy to use. They were also significantly better priced than our big box hardware store.
Trustpilot
1 week ago
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