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ARD3M motor protection switch

The ARD2F intelligent motor protection device (hereinafter referred to as "protection device") is suitable for low-voltage motor circuits with rated voltages up to 660 V and integrates protection, measurement, control, communication, operation, and maintenance. Its perfect protection function ensures safe motor operation and enables a variety of control methods thanks to logically programmable functions.

  • U, I, P, S, PF, F, EP, Leakage, PTC/NTC
  • 16 Protective function
  • Start control function
  • 9 programmable DIs
  • 5 programmable DO
  • Modbus RTU or Profibus DP communication
  • 1 analog DC 4-20 mA output
  • 20 fault records
  • Anti-shaking function

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Product info

accuracy
Active energy: Class 0.5

Frequency range: 45–65 Hz

Auxiliary power supply
AC/DC 85–265 V

Pulse output
1600–160,000 pulses/kWh

consumption
Voltage: Power consumption < 0.5 VA;
Current: Power consumption < 0.5 VA;
Auxiliary power supply: Power consumption ≤ 10 VA

communication
2-channel Modbus RTU; Profibus DP; Profinet; Modbus TCP; WiFi

Switch
Input: 10 channels; Output: 6 channels

Analogous
2-channel 4–20 mA

Technical data

Technical parameters  index
Auxiliary power supply of the protection Supports two power supply modules, AC 220V power supply module (AC85-265V/DC100-300V) standard, AC 380V power supply module (AC/DC100-415V) optional
Rated operating voltage of the motor AC220V/380V/660V，50Hz/60Hz
Rated operating current of the motor 1 (0.1A-5000A) External current transformer
5 (0.1A-5000A)
1.6 (0.4A-1.6A)
6.3 (1.6A-6.3A)
25 (6.3A-25A)
100 (25A-100A)
250 (63A-250A)
800 (250A-800A)
Contact capacity of the relay output Impedance load AC250V, 10A
Switching input 10 channels with passive dry contact (active DC110V, DC220V and AC220V input optional)
communication default 2 channel MODBUS RTU communication
Optional (only one selection possible) 1-2-channel PROFIBUS-DPV1 communication / 1-channel PROFINET communication / Ethernet communication (MODBUS-TCP protocol)
Environment working temperature -10ºC～55ºC
Storage temperature -25ºC～70ºC
Relative humidity ≤95﹪No condensation, no corrosive gas
Height ≤2000m
degree of contamination Class 3
Degree of protection Main body IP20, split display module IP54 (installed on the cabinet panel)
Installation category Stage III

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