Earthing washer – PV contact plate made of stainless steel 40×40 mm
product unavailable
add to wish list
5
Description
Earthing washer – PV contact plate made of stainless steel 40×40 mm
The earthing washer – contact plate is an essential component of equipotential bonding connections in photovoltaic installations. It ensures galvanic continuity between the PV module frames and the mounting structure, enabling effective equalisation of electrical potentials. Eight sharp conical prongs arranged symmetrically on the surface of the plate pierce the thin anodised aluminium layer covering the panel frames — a layer that acts as an insulator and does not conduct electrical charge. This allows the washer to reach directly the metallic aluminium layer beneath, creating a solid and durable electrical connection. The plate is made of 1.4301 stainless steel (austenitic grade A2/304), guaranteeing exceptional corrosion resistance and many years of uninterrupted use in all weather conditions. The open channel shape with two bent wings makes it easy to position on the mounting profile and stabilises the element before the screw is tightened.
Why it is worth using contact plates
- Pierce the anodised insulating layer of the panel frames, ensuring reliable electrical contact
- A2 stainless steel (1.4301/304) — austenitic, non-magnetic, corrosion-resistant in all environmental conditions, including marine and industrial atmospheres
- Compact dimensions of 40×40 mm — compatible with standard PV mounting profiles
- The channel shape stabilises the washer on the profile — quick and secure installation without additional positioning
- The minimal weight (4 g) has no effect on the load of the structure
The photo shows the contact plate installed between the mounting clamp and the aluminium profile of the PV structure. The earthing prongs are pressed against the frame of the photovoltaic module, piercing the anodised layer and ensuring reliable galvanic contact essential for proper potential equalisation in the installation.
Safety
Shipping costs
The price does not include any possible payment costs
Related products
Aluminium Profile 220cm 40x40 for Hexagon Bolts
