DC Rotary Isolator | 1000V DC, IP66, Arc-Safe

Safety is paramount when dealing with direct current. Unlike AC, DC does not have a natural zero current period, so the arc formed when breaking a circuit can be sustained, leading to severe damage or injury. ZHNYU ELECTRIC's DC rotary isolator addresses this challenge head-on with an advanced arc extinguishing system. Our isolators incorporate a unique chamber design that divides the arc into smaller segments using steel plates, which increases the arc voltage and cools it rapidly. Additionally, we integrate a permanent magnet system that produces a magnetic field to drive the arc into the extinguishing plates, accelerating the cooling process. In high-current models, we use an air blowing mechanism that forces the arc away from the contacts.

The longevity of a component is a critical factor in reducing total cost of ownership. ZHNYU ELECTRIC's DC rotary isolator is manufactured to withstand the harshest conditions and to operate reliably for decades. We use only high-quality materials, including a glass-reinforced nylon body that offers high resistance to impacts, vibrations, and temperature extremes ranging from -40°C to +70°C. The moving contacts are made of oxygen-free copper, plated with fine silver to ensure high conductivity and resistance to oxidation. All metallic parts are corrosion-resistant and undergo a 72-hour salt spray test to validate their integrity. Mechanically, the isolator is designed to withstand 20,000 cycles of operation under full load, and an additional 30,000 cycles without load.