Maintenance method: The system adopts an open cover maintenance method and is reliably installed on the wall Harmonic current ≤ 3% (under rated operating conditions) Stable current accuracy ≤ ± 0.5% refer to NB/T33001-2018 Voltage stabilization accuracy ≤ ± 0.5% refer to NB/T33001-2018 Ripple coefficient ≤ ± 0.2% refer to NB/T33001-2018 Current sharing ≤ ± 3% 10%~100% load range On the AC or DC side, the peak value of the impulse current when the switch is turned on should be limited to 10% of the maximum rated current of the charger (station) Sound noise ≤ 65dB (A) (at an ambient temperature of 25 ºC under rated operating conditions) The temperature rise shall comply with the requirements of GB18487-2001 and NB/T33001-2010 standards, and the temperature rise of the charging interface shall comply with the provisions of the national standard GB/T234.1-2014 DC output voltage Range 250Vdc~750Vdc, error ± 1Vdc Output DC current, single gun maximum output current ≤ 50A DC screen voltage drop ≤ 400mV (ambient temperature is 25 ºC)