Mounting Structure
Photovoltaic Accessories and Installation Material in B2B Wholesale
The long-term reliability and safety of a photovoltaic system are often determined by the seemingly small details. High-quality installation material is the basic prerequisite for minimizing electrical losses and handing over a standard-compliant, durable system.
As a specialized B2B wholesaler, Epax Solar supplies installers, electricians, and solar technicians with the complete spectrum of professional PV accessories – from UV-resistant DC cabling to essential protection components for residential and C&I projects.
Solar Cables and DC Connectors for Loss-Free Strings
DC cabling on the roof is exposed to extreme weather conditions, UV radiation, and temperature fluctuations. We only offer certified material that can withstand these stresses for decades:
- PV Cables: Halogen-free, double-insulated, and weather-resistant solar cables (common cross-sections such as 4 mm² and 6 mm²) for safe string wiring. Our cables ensure minimal ohmic losses and meet the highest fire protection classes.
- Connectors: Original MC4 and MC4-Evo 2 connectors from leading manufacturers (e.g. Stäubli), as well as manufacturer-specific connectors for inverters. An exact fit prevents arcing, high contact resistance, and thermal damage to the system.
- Cable Management: UV-resistant cable ties, edge protection, and stainless steel cable clips for clean and strain-relieved cable routing along the mounting rails.
Electrical Safety, Protection Technology, and Combiner Boxes
Standard-compliant protection of the system is mandatory for every specialist company. At Epax Solar, you will find the necessary components for safe grid-parallel operation:
- Generator Combiner Boxes (GAK): Pre-assembled combiner boxes with integrated surge protection (SPD Type 1 / Type 2) to protect inverters from transient overvoltages, for example from indirect lightning strikes.
- Grid and Plant Protection & Firefighter Switches: External relays for grid and plant protection (NA protection) for larger capacity classes, as well as DC disconnectors (firefighter switches) that de-energize the module strings directly at the roof entry in case of danger.
- Power Optimizers: For roofs with complex shading or highly variable orientations, we offer module optimizers that extract the maximum from each individual solar panel at the DC level.
Efficient Material Procurement at Epax Solar
In the solar project business, you cannot afford delays caused by missing small parts. As a dedicated B2B wholesaler, we know that constant availability and fast delivery times are crucial for your installation schedule.
We focus entirely on optimizing our supply chains for specialist companies. Easily supplement your orders of modules and inverters with the appropriate installation material and benefit from attractive B2B conditions and a smooth digital ordering process at Epax Solar. Our dedicated sales team is happy to assist you during your order process or with any questions you might have.