ARD3T Motor Protection Controller-ARD Series Motor Protection Controller-Jiangsu Acrel Electrical Manufacturing Co., LTD.

①Protective function

②Control function

A variety of control methods, programmable input and output

③Measurement, monitoring

Three-phase voltage, current, active power, electric energy, leakage current, power factor, PTC/NTC

④SOE

⑤Communication

RS485 Modbus RTU or Profibus-DP

Technical Parameters	Technical Indicators
Protector auxiliary power supply	AC/DC110/220V or AC380V, power comsumption 15VA
Rated working voltage of the motor	AC380V / 660V, 50Hz / 60Hz
Rated operating current of the motor	1 (0.1A-5000A)	Adopt measurement module
	5 (0.1A-5000A)
	25（6.3A-25A）
	100（25A-100A）
	250（63A-250A）	Adopt outlay current tansformer and measurement module
	800（250A-800A）
Leakage	50mA-1A or 3A-30A	Adopt measurement module and leakage current transformer
Relay output contact capacity	Impedance load	AC250V、6A; DC24V、6A
Master switching input and output	4DI/4DO
Switching value module	4DI/3DO
Temperature module	Type of external sensor: PT100、PT1000、Cu50、PTC、NTC Channel of the sensor: 3 channels Sensor’s corresponding measurement range: PT100/PT1000: -50°C～+500°C; Cu50: -50°C～+150°C; PTC/NTC: 100Ω～30kΩ
Analog module	2-channel 4-20mA input and 2-channel 4-20mA output
Master communiction	RS485 Modbus_RTU
Communication module	Double RS485 Modbus_RTU, Profibus_DP
Environment	Working temperature	-10ºC～55ºC
	Storage temperature	-25ºC～70ºC
	Relative humidity	≤95﹪No condensation, no corrosive gas
	Altitude	≤2000m
Pollution levels	Class 3
Protection grade	Main body IP20, split display module IP45 (installed on the cabinet panel)
Installation category	Level III