Burndy Cast Copper Alloy Grounding Clamp — 3 Cable to Rod or Pipe
The Burndy GK1129 grounding clamp provides a reliable, code-compliant mechanical connection for three grounding conductors to a single ground rod or pipe. Cast from copper alloy for strength and conductivity, this clamp accommodates a 1/2 in. rod diameter or 1/4 in. IPS(A) pipe and accepts conductors ranging from 2/0 AWG solid through 250 Kcmil copper or aluminum-clad aluminum. It is engineered for grounding electrode systems in utility, industrial, and commercial electrical installations.
Features
- Cast copper alloy construction provides high conductivity and mechanical durability at the grounding electrode connection point
- Accepts 3 cables simultaneously — reduces the need for multiple single-conductor clamps at the ground rod
- Compatible with 1/2 in. diameter ground rods and 1/4 in. IPS(A) pipe connections
- Wide conductor range: 2/0 AWG solid through 250 Kcmil Cu(AA)
- Mechanical clamp design for tool-tightened, inspection-verifiable connections
- Suitable for grounding electrode systems per NEC Article 250 requirements
Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Burndy |
| Model | GK1129 |
| UPC | 78181023368 |
| Product Type | Mechanical Grounding Clamp |
| Material | Copper Alloy (Cast) |
| Number of Cables | 3 |
| Connection Type | 3 Cables to Rod or Pipe |
| Rod Diameter | 1/2 in. |
| Pipe Thread | 1/4 in. IPS(A) |
| Conductor Range | 2/0 AWG Sol – 250 Kcmil Cu(AA) |



