Solar Grounding Lugs, Aluminum
- Product Type: Solar Grounding Kits
- Product Model: SPC-GL-04
- Material: Aluminium, Steel
- Application: PV Module Installation
Product Description:
The solar panel grounding lug for PV mounting of solar panels is a grounding component that is easy to install on solar panels and solar mounting systems, with light weight and small size. It is one of the indispensable important components of the installation system. It is used with stainless steel installation hardware instruments. After tightening the hardware, it will conduct electricity to establish an airtight electrical connection.
It is a grounding piece compatible with most solar modules in solar rack systems to ensure reliable conduction between devices. Low cost, fast installation speed, very few grounding components provide higher safety, and save installation time and cost.
This grounding lugs for solar panels model:SPC-GL-04 is used as earth conductor, contact PV modules to racking rails with good electric conductivity.
The solar mounting component grounding lug is a device used to ground other metal components of the PV array. The grounding components mainly include grounding clamps and grounding sheets, which can provide a reliable airtight electrical connection with anodized aluminum components.
Feature of this solar panel grounding lug for PV mounting SPC-GL-04:
1. It is the most important part of the solar photovoltaic system;
2. The grounding clip is used in conjunction with the grounding clip to ground each module to the rail;
3. Provide aluminum materials for customers to choose;
4. Can be used for all module frames and brackets;
5. Hardware that can be recycled;
Components of this grounding lug for solar mounting system SPC-GL-04:
(1) Aluminum grounding body (6005-T5);
(2) SUS304 stainless steel M6×20, M8×20 bolts;
(3) Sliding nut;
(4) Grounding clips;
The grounding lug for solar mounting system is an important grounding component for solar modules and solar mounting systems, and can be easily connected to the ground wire. It has a perfect universal design and can be used for commercial or residential installations. It has been tested and conforms to the standard and can be used with the ground wire to ensure the safety of the equipment.
Solar grounding straps are ideal for quickly installing a continuous grounding conductor or as a jumper across multiple locations. No need to thread the connector. Just loosen the positioning screw, put it in the cable, and then tighten it again. If you need grounding lugs of other materials, please feel free to contact us: www.solarpartscomponents.com.
| Brief Descriptions: | |
| Solar Mounting Components – Aluminum Solar Grounding Lugs | |
| Item type: | SPC-GL-04 |
| Type: | Earthing Hardware |
| Installation Site: | PV Module Mounting |
| Profile Material: | Aluminum Alloy |
| Color: | Anodized |
| PV Modules: | Framed |
| Module Orientation: | Portrait and Landscape |
| Standards: | AS/NZS 1170 |
| DIN 1055 | |
| GB50009-2012 | |
| IBC2009 | |
| TUV | |
| JIS C 8955 : 2011 | |
| International Building Code IBC 2009 | |
| California Building Code CBC 2010 | |
| Warranty | 10 years |
| Designed Lifespan | 25 years |
| Packing Details: | |
| Inner: | Bubble bag+inner box+Carton |
| Outer: | Wooden Box, Steel Pallet, MDF, etc |
Can this grounding lugs for solar panels be reused after disassembly from the finished PV project?
The AL6005-T5 aluminum grounding body can be reused if there is no deformation or crack. However, the grounding clip will form sharp piercing teeth after pressing into anodized aluminum surface during first time installation. Once disassembled, its piercing performance will decline. We suggest replacing the grounding clip for secondary reuse to guarantee stable conductive earthing. SUS304 bolts and sliding nuts can be recycled normally without damage.
Do I need to apply conductive grease or remove anodized coating manually before installing grounding lugs for solar panels?
No manual pre-treatment is required. The integrated piercing clip has sharp teeth that penetrate anodized aluminum surface when bolt is tightened, creating direct metal-to-metal contact. Applying extra conductive grease is optional but not necessary; it may attract dust in outdoor environments
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Can SPC‑GL‑04 be used without grounding clips?
1.Can SPC‑GL‑04 be used without grounding clips?
No, you cannot rely only on SPC‑GL‑04 to complete the whole‑array equipotential bonding.
This grounding lug is designed to connect the PV mounting rail to the main external grounding cable. It does not break through the anodized coating of the rail by itself.
Grounding clips are still required between solar module frames and mounting rails to create electrical continuity across the whole racking system. If you skip grounding clips, individual PV frames may remain unbonded and create safety hazards.
2.What torque should I use for SPC‑GL‑04 bolts?
For standard M8 bolt included with SPC‑GL‑04, the recommended tightening torque is 12‑14 N·m (106‑124 in‑lbs).
‑ Do not exceed 16 N·m, over‑torque may deform or crack the aluminium lug body.
‑ Under‑torque will lead to loose contact, high‑resistance joint and potential arc‑fault risks.
‑ Always use a torque wrench for critical PV installation projects.
3.Can I use SPC‑GL‑04 in salt‑spray coastal environment?
SPC‑GL‑04 standard version uses 6005‑T5 aluminium body and SUS304 stainless‑steel hardware, which can work in coastal areas with extra anti‑corrosion protection.
‑ You must apply dielectric anti‑corrosion grease at the contact point between aluminium lug and bare‑copper grounding wire to avoid galvanic corrosion.
‑ For long‑term high‑salinity C4‑C5 coastal projects, we recommend upgrading to SUS316 hardware option for better salt‑spray resistance.
4.What size grounding wire can SPC‑GL‑04 accept?
SPC‑GL‑04 is compatible with copper grounding conductors from 14 AWG to 6 AWG (2.5 mm²‑16 mm²).
‑ Tinned‑copper wire is preferred for outdoor and humid‑site installation.
‑ Do not use grounding wire larger than 6 AWG, oversized cable cannot be clamped firmly and will cause unstable electrical connection.
‑ Confirm your local NEC or IEC code requirements to select the proper fault‑current‑carrying wire gauge.
5.Is SPC‑GL‑04 compliant with NEC / IBC PV grounding requirements?
SPC‑GL‑04 is manufactured to meet common PV equipotential bonding standards for solar racking systems.
It provides low‑resistance electrical connection when installed with correct torque and matching grounding clips.
Please note that final code compliance also depends on full‑system installation, local electrical inspector rules, wire selection and bonding layout.
6.Can I mix SUS304 and SUS316 hardware on one PV array?
Mixing SUS304 and SUS316 fasteners on the same solar racking array is technically allowed in inland low‑corrosion zones.
However, it is not recommended for coastal or high‑humidity sites. Different stainless‑steel grades have different corrosion potentials, which may accelerate fastener rusting under salt‑fog conditions. For consistency and long‑term durability, we suggest using the same hardware material grade across your whole project.
7.What is the difference between SPC‑GL‑04 and other solar grounding lugs?
Most generic grounding lugs only offer basic wire‑to‑rail connection.
SPC‑GL‑04 features a sliding‑nut design, which allows flexible positioning along the PV rail without pre‑drilling holes. It fits most common C‑channel solar mounting rails. Its 6005‑T5 aluminium body guarantees low‑resistance bonding performance. We also offer customizable hardware material, laser marking and bulk project‑packing options that many competitors do not supply.
8.Does SPC‑GL‑04 work for portrait and landscape mounted solar modules?
Yes. SPC‑GL‑04 works equally well for both portrait and landscape solar‑module layouts.
Its function is to bond the mounting rail to the main earth cable, which is not affected by the orientation of solar panels. You only need to select the proper installation position on your rail run according to your system grounding layout drawing.
9.Can I reuse SPC‑GL‑04 when de‑commissioning old PV systems?
SPC‑GL‑04 can potentially be reused, but a full inspection is required before reinstallation.
‑ Check for aluminium‑body deformation, scratch corrosion, thread damage and rust on bolts and sliding nuts.
‑ If the part has been installed for many years in coastal or heavily polluted areas, corrosion may have reduced its electrical‑connection performance.
‑ For safety‑critical new PV projects, we recommend installing brand‑new grounding lugs.
How do you ground solar panels with SPC-GL-04?
Grounding Lugs for Solar Panel Installation SPC-GL-04 are good for grounding solar panels,
which is the most popular solution for grounding solar systems at the moment.
Simply install the ground disc at the end of each mounting rail and tighten the hexagon bolt.
It connects to the entire system to form a conductive system,
which helps prevent damage caused by lightning.
https://www.solarpartscomponents.com/solar-pv-earthing-lug-spc-gl-04
How do I obtain the Solar Grounding Lugs 600 units?
”
Hi There,
I need to purchase 600 X Grounding Lugs for Solar Panel Installation SPC-GL-04 (Solar Grounding Lugs, Aluminium)
Please let me know if you have 600 instock, and how do I obtain them.
Many Regards,
Jack Theron
”
”
Hi Jack,
I have sent our quotation for 600 solar grounding lugs SPC-GL-04 to your email.
Please kindly check.
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How to buy this Solar Grounding Lugs, 1800 units ?
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We would like to place an order for 1800 ground lugs for a solar panel installation job.
What is the lead time on these electrical grounding lugs ?
Is there any way to pay via credit card?
How do I start this process? Would like to receive these in 7 days at the below address.
776 Bennett Dr
Longwood, FL 32750
Daniel Wagner
Chief Electrician
”
”
Dear Daniel
Nice to receive inquiry about our grounding lugs.
Well understanding credit card is very convenient in USA,
You can pay through your credit card by PAYAPL payment.
I just update an paypal invoice for you.
Just let me know when you arrange PAYMENT for this order.
I will ship them through Fedex / UPS .
Thank you !
SPC Solar Service Team
”
How long would it take to send the Solar Panel Grouding Lugs to Austria ?
Q:
Hi, How long would it take to send 3000 of the Solar Panel Grouding Lugs to Austria?
Please give me your price and shipping cost.
A:
Thank you for your inquiry for our PV Module grounding lugs.
solar panel grounding lug
It will cost 5-7 work days from China to Austria by Express delivery.
Please find the attachment for our quotation.
