productive history for 30 years, current range:20A to 100A certificate:Rohs&CE IP class:IP65 No.Tech Parametersrequirement1.rated voltagebelow ... .No.of poles2P,3P,4P5.No.of layersmake as required with circuit diagram6.panel size30*30mm,48*48mm,64*64mm,88 ... height ≤2,000m10. Relative humidity ≤50% with highest temperature +40°C,but allow higher humidity with low temperature less than 40°C ...