1. Vacuum arc extinguishing, strong breaking capacity, long electrical life and 10,000 mechanical life; 2. Simple structure, maintenance-free, long maintenance period; 3. Good insulation performance and strong anti-pollution ability; 4. It can be equipped with spring or electromagnetic operating mechanism, with reliable mechanical performance and frequent operation; no fire and explosion hazard; 5. Built-in current transformer, the lecturer's precision reaches 0.2, which can realize three-phase interactive protection; 6. With condensation controller, it can keep the circuit breaker running reliably under certain temperature and humidity.
1. Ambient air temperature: -5~+40 and the average temperature should not exceed +35 in 24h. 2. Altitude above sea level for operation site should not exceed 2000M. 3. Relative humidity should not exceed 50% at max temperature +40. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20. But in view of the temperature change, it is possible that moderate dews will produce casually. 4. Installation gradient not exceed 5°. 5. Install in the places without fierce vibration and shock and the sites insufficient to erode the electrical components. 6. Any specific requirement, consult with manufactory.
