Stubli MC4 Evo 2 Solar Connectors: High-Performance Photovoltaic Couplers

Industry-Leading Reliability for Commercial and Off-Grid Solar

When constructing a photovoltaic array, the integrity of your DC connections is paramount. The Stubli MC4 Evo 2 Solar Connector Pair delivers an exceptional standard of performance, designed to handle the rigorous demands of modern 1500V DC solar systems. Whether you are wiring a large-scale commercial solar farm or configuring an off-grid caravan setup, these genuine Stubli MC4 connectors ensure optimal energy transfer and long-term durability. Rated for up to 1500V DC, this connector pair significantly reduces the risk of arc faults and system degradation common with generic alternatives.

Advanced MULTILAM Contact Technology

At the core of the MC4 Evo 2 connector is Stubli’s proprietary MULTILAM technology. This innovative contact system utilises specially formed, resilient contact elements that maintain constant pressure between the mating surfaces. The result is consistently low contact resistance (under 0.2 m), which minimises power loss and prevents dangerous heat buildup over the lifespan of your installation. For systems operating under continuous high loads, this engineering approach delivers superior efficiency and thermal stability compared to standard stamped contacts.

Engineered for Harsh Australian Environments

Solar installations are frequently exposed to extreme environmental stressors. The Evo 2 MC4 connector is heavily fortified against these conditions, featuring robust UV resistance and a high IP65 and IP68 ingress protection rating (1 hour at 1 metre submersion). Additionally, these connectors are rigorously tested for salt mist spray and ammonia resistance, making them highly suitable for coastal, marine, and agricultural applications where corrosion is a primary concern. The high-grade polyamide (PA) insulation material also meets stringent UL94-V0 flammability standards.

Versatile Cable Compatibility and Current Ratings

This MC4 connector pair accommodates standard solar cable cross-sections of 4.0mm2 to 6.0mm2 (approx. 12 AWG to 10 AWG) with an outer cable diameter range of 6.4mm to 8.4mm. Engineered to handle high current, the system supports rated currents up to 45A for 4.0mm2 cables and up to 53A for 6.0mm2 cables. *Note typical de-rating factors apply. The crimp termination ensures a highly secure, gas-tight mechanical and electrical connection when installed with appropriate tooling.

Reducing Installation Risks

Using generic or mismatched components in a solar array is a leading cause of DC arc faults and premature system failures. By standardising your installation with the Stubli MC4 Evo 2, you mitigate these severe risks. These precision-engineered couplers are specifically designed to mate perfectly with other components in the Stubli family, ensuring a seamless, weather-tight seal that eliminates moisture ingress. This level of quality control reduces the likelihood of intermittent faults and minimises long-term maintenance requirements, providing peace of mind for both installers and system owners.

Key Features at a Glance

• 1500V DC Rated: Suitable for both residential 12V/24V/48V setups and large-scale high-voltage arrays.
• MULTILAM Contacts: Delivers exceptionally low contact resistance for maximum power retention.
• IP68 Weatherproof Protection: Fully protected against dust ingress and water submersion.
• Extreme Environment Ready: Certified resistance against salt mist and ammonia exposure.
• Broad Compatibility: Suits standard 4-6mm2 PV cables with 6.4-8.4mm outer diameters.
• Global Safety Certifications: Complies with TV, UL, and JET international safety standards.

Secure Your Solar Array Today

Invest in the long-term safety and efficiency of your photovoltaic system with industry-leading connection technology. Upgrade to the Stubli MC4 Evo 2 to eliminate weak points in your electrical circuit. Add this connector pair to your project today for reliable, high-performance power distribution.