Double Power Automatic Transfer Switch ATS 4P 63A 400V AC CB Level Mini Type Flame Retardant PC Item Type: Double Power Automatic Transfer Switch Material: PC flame retardant Number of Poles: 4 Insulation Voltage: AC400V Rated Voltage: AC360V Rated Current: 63A Operating Frequency: 50/60Hz Mechanical Life (N-R-N): 4000 Times Operating Mode: Automatic or manual Electrical Grade: CB grade Transfer Time: ≤3s Return Time: <3s Usage Type: AC-33iB Conversion Mode: Self recovery Installation Method: Screw fixed Application Scope: Suitable for double power supply system with AC 400V, 50Hz and rated current less than 63A Use Environment: The temperature ranges from -5℃ to +40℃, and the average temperature is no more than 35℃ for 24 hours. The installation position does not exceed 2000 meters above sea level. The maximum temperature is 40 degrees, the relative humidity of space and time does not exceed 5%, allowing relatively high relative humidity at lower temperatures, and timely measures should be taken for suspected touch due to temperature changes. Pollution Level: Not more than 3 levels; There should be no strong vibration and impact in the workplace, safe metal boxes, no damage to insulating gases, no serious dirties, no conductive particles and explosive substances, and no strong electromagnetic interference