Jiangsu Acrel Electrical Manufacturing Co., LTD.
Jiangsu Acrel Electrical Manufacturing Co., LTD.
  • am4 protection relay
  • am4 protection relay

Acrel AM4 Protection Relay

AM series protection relay are applicable to the user substation which the input voltage is 35kv and below. We adopt mature technology solutions to ensure the quality of the AM relay. The AM relay are widely used in substations, subsection posts and ring main units for office buildings, commercial buildings, communication buildings, mine buildings and so on.

Parameters of AM4 Protection Relay

Rated ParameterPower SupplyPower supply: AC/DC220V, Or AC/DC110V, oR DC48V(Reference the wiring diagram)
Range: Power supply x (1±20%)
Maximum power consumption:≤10W(DC)
Rated VoltageRated Voltage: AC100V
Range: 1-120V
Accuracy: ±0.5%
Power Consumption: ≤0.5VA(Single phase)
Overload capacity: 1.2 times rated voltage for continous work;2 times for 10 seconds
Rated CurrentRated current: AC 5A/1A(See the device wiring diagram)
Power consumption:≤0.5VA(Single phase)
Over capacity:2 times rated current for continuous work;40 times for 1 second
FrequencyRated frequency:50Hz or 60 Hz
Digital InutRated Voltage: AC/DC220V, AC/DC110V, DC48V(Similar to power supply)
Voltage Range: Rated voltage x (1±20%)
Power Consumption:≤1W(DC220V)(Single channel)
Digital OutputMechanical life: ≥10000 times
Switching capacity: ≥1000W, L/R=40ms
On current: continuous≥5A short time(200ms)≥30A
Interrupting capacity: ≥30W,L/R=40ms
Normal Working ConditionsAmbient temperature: -10℃~+55℃
Device storage, transport allows the ambient temperature is -25℃~+70℃
Relative humidity: 5%~95%(The product does
Altitude: ≤4000m

Video of Generator Protection Relays

Benefits of AM4 Protection Relay

  • A complete set of protection, related to the application

  • 4 current input, 4 voltage input, 12DI, 5DO

  • Auxiliary power supply adapts with AC220V, DC220V, DC110V, AC110V

  • 1 RS485 serial communication, IEC60870-5-103 and Modbus-RTU

  • 1 RS232 for user update

  • 1 GPS for GPS timing

  • More than 200 sequence of event records, more than 400 system logs, and more than 10 seconds tripping context records

  • Powerful graphic programmable Logic

Looking Forward To Our Cooperation?

Any IoT energy management system problem pls contact us, our experts will reply you within 24 hours.

Send Inquiry Now
  • Tel:


  • Address:

    No.5 Dongmeng Road, Nanzha Street, Jiangyin City, Jiangsu Province, China.

Other AM Series Middle Voltage Protection Relay Products