PV Array DC Isolator: 1000V Rated, IP66 Safety Switch

ZHNYU PV array DC isolators are designed to handle the most demanding DC conditions, with a rated insulation voltage of up to 1000V and a continuous current capacity of up to 40A. Our unique double-break contact system ensures rapid arc extinction, preventing damage to contacts and reducing the risk of fire. This is particularly crucial in high-voltage photovoltaic systems where DC arc faults can be catastrophic. Independent testing has shown that our isolators achieve a dielectric withstand of 2.5kV for 1 minute, meeting the most stringent international standards. Moreover, the contact resistance remains below 1.5mΩ under rated current, minimizing power loss and heat generation. The switching mechanism is designed for high breaking capacity, safely interrupting fault currents up to 6kA.

The operational success of a PV power plant heavily depends on the robustness of its components, especially those exposed to harsh outdoor conditions. ZHNYU PV array DC isolators are housed in high-grade thermoplastic enclosures that are UV-stabilized and halogen-free, ensuring they can withstand continuous direct sunlight without yellowing or becoming brittle. The IP66-rated enclosures provide complete protection against dust ingress and powerful water jets, making our isolators ideal for locations with heavy rain, snow, or coastal salt spray. In accelerated aging tests, our enclosures showed no degradation after 2,000 hours of UV exposure. Additionally, the switching mechanism is sealed and rated for operation within an ambient temperature range of -40°C to +85°C, which covers almost any climate zone on Earth.