ER-4B Earthrod
The Unbranded ER-4B Earth Rod facilitates a high-conductivity connection between electrical circuits and the physical earth. This component serves as the primary electrode in lightning protection and grounding systems. It features a high-carbon steel core for maximum rigidity during installation. A molecularly bonded copper layer covers the steel to ensure low resistance. This electrolytic coating process prevents peeling or cracking when driving the rod into dense soil. The 4-foot length provides sufficient depth for standard residential and light commercial grounding requirements.
Key Features
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Electrolytic Copper Bonding
The rod features a uniform copper coating thickness of 250 microns to resist oxidation. -
High-Tensile Steel Core
Cold-drawn steel provides the necessary structural strength to penetrate rocky or compacted earth layers. -
Optimized Surface Area
- 16mm diameter increases contact with the surrounding soil.
- Large diameter facilitates faster dissipation of high-voltage surges.
- Increased mass improves thermal capacity during short-circuit events.
The rod design focuses on long-term durability in underground environments. Soil chemistry often accelerates the degradation of inferior grounding components. However, the thick copper cladding on this model resists moisture and chemical corrosion. This protection maintains system integrity for decades. Procurement teams benefit from the 20-piece carton packaging for large-scale infrastructure projects. This grounding rod integrates with ceiling-mounted busbars and structural grounding holders for overhead cable management systems.
Installation requires a driving head to protect the rod tip from deformation. The unthreaded design allows for easy insertion using manual or power drivers. Proper grounding reduces the risk of equipment damage from static discharge. It also stabilizes voltage levels during normal operation. This grounding electrode meets the requirements of most local electrical codes for safety grounding. Additionally, the rod supports connection via exothermic welding or mechanical clamps.
Specifications
| Feature | Specification |
|---|---|
| Material | Copper Bonded Steel |
| Length | 1.2 Meters (4 Feet) |
| Diameter | 16mm (5/8 inch) |
| Coating Thickness | 250 Microns |
| Carton Quantity | 20 Pieces |
| Tensile Strength | 600 N/mm² |
What’s in the Box
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Unbranded 4ft Copper Bonded Earth Rod
Why Choose ER-4B Earthrod
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Enhanced conductivity through high-purity copper bonding ensures rapid fault path detection.
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Robust steel construction prevents rod failure during high-impact mechanical installation.
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Corrosion-resistant materials extend the operational lifespan of the grounding network.
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Bulk packaging supports efficient inventory management for large electrical installations.
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Samuel Gichuru (verified owner) –
It’s okay for the price. The finish is a bit rough compared to the more expensive branded ones, but for a 16mm rod, it passes the test for residential use. Just make sure you have a good quality clamp to go with it.
Peter Kipkemboi (verified owner) –
Solid build and heavy. Delivery was quick and the rods were well-packed.
Evans Omari (verified owner) –
Standard 4ft rod. Does the job for basic grounding and the 16mm diameter is spot on.
Josphat Kamau (verified owner) –
The copper bonding on this ER-4B is actually quite thick. I was worried it might peel off while driving it into the hard soil here in Kitengela, but it held up well. Good value for the price compared to what’s in the local shops.
Fatuma Hassan (verified owner) –
Reliable earth rod. We used these for a small office setup and the resistance readings were within the required limits. No need to spend double on big brands when these unbranded ones work just as well for most projects.
Mary Atieno (verified owner) –
I ordered ten of these for a site in Ruiru. The thickness is correct and they arrived straight, not bent like some cheap ones you find in town. Very happy with how they handle the hammer without mushrooming too much at the top.