
Coupling for connecting grounding rods | 17.2 mm | bronze | internal thread | 158020 CC34 | ERICO
Code: ER158020A coupling designed for the professional connection of 17.2 mm copper-bonded grounding rods, ensuring a strong mechanical contact and low electrical resistance. This bronze coupling with an internal thread allows quick and safe connection of multiple rods into a single system, ensuring effective grounding even in challenging conditions. Ideal for both installation of new grounding systems and modernization of existing ones.
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Technical Specifications
Type: Ground rod coupling
Suitable for rods: 17.2 mm (copper-bonded / copper-coated)
Connection type: Internal thread (screw-on)
Material: Bronze (high corrosion resistance)
Manufacturer: ERICO
Country of origin: USA
Purpose: Extension / connection of grounding rods
Resistance: Moisture, corrosion, mechanical impactFunctions
Ensures reliable electrical contact between grounding rods
Allows extension of the grounding system to the required depth
Threaded design – fast and secure installation
Bronze material – durability and resistance to oxidation
Minimal contact resistance – efficient grounding
Suitable for professional lightning protection and grounding systemsApplication
For household users: An excellent choice for installing or improving grounding systems in private homes. Allows safe connection of multiple rods to achieve the required grounding depth and efficiency.
For electricians: A reliable solution for everyday installation work. Fast installation, strong connection, and minimal risk of errors ensure efficient work on-site.
For engineers/designers: Meets high technical requirements – suitable for designing grounding and lightning protection systems where durability and stable electrical parameters are essential.
In industry and infrastructure: Used in electrical networks, substations, solar power plants, industrial facilities, and other installations where reliable grounding is required.Advantages
High-quality bronze construction
Corrosion-resistant and durable
Fast and easy installation (threaded connection)
Ensures low contact resistance
Suitable for professional solutionsDisadvantages
Suitable only for a specific diameter
Requires precise compatibility with rodsWhat is this coupling made of?
The coupling is made of high-quality bronze. This material offers excellent corrosion resistance, durability, and good electrical conductivity, making it suitable for grounding systems.
Where is this coupling used?
It is used in grounding and lightning protection systems – to connect or extend grounding rods. Commonly applied in residential buildings, industrial facilities, solar power plants, substations, and other electrical installations.
Is this coupling suitable for outdoor use?
Yes, due to its bronze construction, the coupling is resistant to moisture, oxidation, and environmental impact, making it ideal for installation in soil or outdoor conditions.
What rod diameter is it designed for?
This coupling is designed for 17.2 mm diameter copper-bonded grounding rods. It is important to use the correct diameter rods to ensure a secure and safe connection.
Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
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