Mounting Systems centre clamp 30-40 mm; 40 mm (natural aluminium)
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Product information
The Mounting Systems centre clamp is a universal connecting element for safely securing two adjacent solar modules to a substructure. This version is designed as a universal clamp and flexibly covers module frame heights from 30 to 40 mm. The specification "40 mm" refers to the width of the clamping surface, which ensures optimal load distribution on the frame edges.
Thanks to the variable clamping range, the component automatically adapts to the respective frame thickness when tightened. This reduces complexity in material planning, as only one type of clamp is needed for various module generations.
Highlights at a glance
- Flexible clamping range: Suitable for solar modules with frame heights between 30 mm and 40 mm.
- Wide contact surface: The 40 mm wide clamping jaw ensures a stable hold and prevents damage to the module frame by localised pressure.
- High corrosion resistance: Made from high-quality aluminium and stainless steel screws for long-lasting resistance to weathering.
- Efficient installation: Allows simultaneous fixing of two modules with only one fixing point, reducing installation time per kilowatt-peak ($kWp$).
- Universal compatibility: Precisely fits common Mounting Systems profile systems as well as many cross-brand aluminium mounting rails.
- Symmetrical load distribution: The design ensures uniform contact pressure on both adjacent module frames.
Areas of application
The centre clamp is used within a module field for connection:
- Photovoltaic rooftop systems
- Standard fixing for pitched roof systems to securely connect rows of modules together.
- Commercial PV systems
- Used in large projects where the speed and reliability of components are critical.
- Multi-row module fields
- Wherever more than one module per rail row is installed and a defined space (module gap) is required between the units.
Installation & safety instructions
- Centring
- The centre clamp must be positioned exactly between the two module frames. Make sure that both frames are covered evenly by the clamp.
- Tightening torque
- Tighten the stainless steel screw to the recommended torque (usually 8–10 Nm). Too little tightening jeopardises storm resistance, too much tightening can deform the frame.
- Earthing / potential equalisation
- Observe the applicable regulations regarding earthing of the mounting system. Some centre clamps feature integrated earthing pins that pierce the anodised coating of the frame.
Properties
| Category | Centre clamp natural aluminium |
|---|---|
| Clamping range (frame height) | 30 – 40 mm |
| Material | Aluminium (high-quality anodised/natural) |
| Colour / Finish | Natural aluminium (silver) |
| Clamp length | 40 mm |
| Area of application | Connection between two solar modules |
| Compatibility | Mounting Systems rail profiles |
| Mounting method | Click or screw fixing |
| Weather resistance | Very high / corrosion-resistant |
FAQs on the Mounting Systems centre clamp
Can I use this clamp for any solar module?
Yes, provided the frame height is in the range of 30–40 mm.
- Most modern high-performance modules have frame thicknesses of 30 mm, 35 mm or 40 mm, making this clamp almost universally applicable.
Is the distance between the modules specified by the clamp?
Yes.
- The centre bar of the clamp creates a technical gap between the modules (usually approx. 20 mm). This gap is necessary for the thermal expansion of the rails and modules.
Is the clamp supplied complete with sliding block?
Usually, yes.
- The clamp is usually supplied as a set including screw and sliding block or click block. Check in advance if the block is compatible with your specific rail profile groove.
Is this model also available for black module frames?
Yes.
- For an aesthetically pleasing installation of full-black modules, this clamp is also available in a black anodised version available.
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