nVent ERICO Hammerlock — Irreversible Grounding Clamp
Irreversible mechanical clamp connecting grounding conductor to ground rod. Machined from high-conductivity copper, providing a low-resistance connection. Installed solely with a hammer — no special tools, training, or torque wrench required. 20 models, separate for copper-bonded and galvanized rods.
The nVent ERICO Hammerlock is an irreversible mechanical connector that connects the grounding conductor to the ground rod.
It is machined from high-conductivity copper and provides a low-resistance connection.
The product's distinctive feature is its installation method: the clamp is tightened solely with a hammer after the rod and conductor are inserted. No torque wrench, exothermic welding equipment, or special tools are required. No special training required.
Once the connection is complete, the clamp provides a visible indication of completion — the installer can instantly verify proper connection on-site.
The clamp allows for "T" type and pass-through connections. It can also be used with Copperweld® steel conductors.
It is irreversible — once tightened, it cannot be disassembled or loosened.
- Irreversible connection — superior mechanical strength
- Fast and simple installation — only a hammer required
- No special training required
- Low-resistance connection
- Visual indication for completed connection
- Suitable for "T" type and pass-through connections
- Suitable for Copperweld® steel conductors
- Material: copper (machined)
- Separate models for copper-bonded and galvanized rods
- Single or dual conductor connection options
- UL / cUL certified (most models), RUS on some models
Connection Point
- Ground rod ↔ grounding conductor connection
- Ring grounding line pass-through connections
- "T" type branch-off points
Facility Types
- Building grounding installations
- Solar and wind farm sites — numerous electrodes, rapid installation critical
- Telecommunication base stations
- Substations and switchyards
- Industrial facilities
- Railway and metro facilities
- Temporary site grounding
Especially suitable for
- Locations where exothermic welding cannot be performed (explosive atmospheres, fire risk, wet ground)
- Sites without qualified welders
- Projects requiring rapid installation
- Numerous repetitive connection points
- nVent ERICO Maximizes Your Grounding System's Efficiency Download
