DC Isolators Solar PV | 1500V, IP66, 10kA Fault Rating

Our DC isolators solar PV are engineered to provide years of failure-free service in the most demanding photovoltaic environments. Through rigorous testing, we have demonstrated a mechanical life of 10,000 operations, ensuring that even in installations where isolators are used frequently, they will not fail prematurely. This is supported by real-world data from a utility-scale project in Chile, where isolators were operated twice daily for inverter disconnection. After five years, all units were still functioning correctly, with no signs of contact wear or overheating. This level of endurance reduces maintenance frequency and total cost of ownership for solar operators. With a rated insulation voltage (Ui) of 1500V DC, the isolators can handle the high voltages common in modern solar arrays while maintaining safe clearances between poles.

Safety is non-negotiable in solar installations, and our DC isolators are designed to provide multi-layered protection against electrical hazards. Each unit is equipped with a robust arc-suppression system that extinguishes arcs quickly during switching, minimizing the risk of fire and equipment damage. The isolators have a rated short-circuit current capability of up to 10kA, ensuring they can safely interrupt fault currents without endangering personnel or equipment. On the mechanical side, the isolator features a positive break indicator that clearly shows the status of the contacts, allowing operators to verify disconnection at a glance. Additionally, the handle can be padlocked in the OFF position to prevent unauthorized operation and ensure safety during maintenance.