Is ARD3M Suitable for Your Motor?
- Motor Voltage: Up to 660V
- Motor Current: 0.1-5000A
- Communication: Modbus RTU / PROFINET / PROFIBUS / Ethernet
- Application: Industrial Motors / Pumps / Fans / Compressors / Conveyors
- Need a Different Configuration? Send us your motor voltage, rated current and communication requirement.
What Problem Are You Trying to Solve?
What Problem Are You Trying to Solve? 
ARD3M provides configurable motor protection against overload, phase loss and other abnormal conditions.
Unexpected Motor Trips?
Fault and event records help identify what happened before and during a motor trip.
Need Motor Data in Your Control System?
Connect motor operating data to PLC, DCS or SCADA through industrial communication interfaces.
Need More Than a Thermal Overload Relay?
Combine motor protection, measurement, control and communication in one intelligent device.
[ Tell Us Your Motor Requirement → ]
More Than Motor Protection
3 Core Values
- Protect & Keep Running
- Monitor & Diagnose
- Control & Connect
6 Ways ARD3M Helps You Protect, Control & Manage Your Motors
ARD3M = Protect + Keep Running + Monitor + Diagnose + Control + Connect
Prevent Motor Damage
Comprehensive protection for abnormal motor conditions
Protect motors against overload, phase loss, stall, blocking, short circuit, voltage abnormalities, current/voltage imbalance, ground fault, leakage, temperature and other operating faults.
Value: Reduce the risk of motor damage and costly equipment failure.
Prevent Unexpected Shutdowns
Keep critical motors running through short voltage disturbances
ARD3M supports optional Anti-Sag Restart functions to automatically restart motors after voltage dips or temporary power interruptions, according to the configured restart strategy.
Value: Reduce unnecessary motor shutdowns and help maintain production continuity.
Ideal for: Pumps · Fans · Compressors · Conveyors · Continuous-Process Equipment
See Motor Health in Real Time
Know how your motors are operating — not just when they trip
Monitor key electrical parameters including current, voltage, active/reactive power, power factor, frequency, energy, imbalance and other operating information.
Optional harmonic measurement supports 2nd–63rd voltage and current harmonics.
Value: Improve visibility of motor operating conditions and support preventive maintenance.
Find Faults Faster
Know how your motors are operating — not just when they trip
Monitor key electrical parameters including current, voltage, active/reactive power, power factor, frequency, energy, imbalance and other operating information.
Optional harmonic measurement supports 2nd–63rd voltage and current harmonics.
Value: Improve visibility of motor operating conditions and support preventive maintenance.
Control & Connect Your Motors
Bring motor protection into your automation system
ARD3M combines programmable motor control with industrial communication.
Communication Options
wired and wireless
Control Functions
Value: Connect motor protection, control and operating data with your PLC, DCS or SCADA system.
Simplify Motor Management
Protection + Measurement + Control + Communication in One Device
Instead of combining multiple devices for motor protection, measurement, control and communication, ARD3M integrates these functions into one intelligent motor management relay.
Value: Simplify panel design, reduce device count and make motor management easier to standardize across projects.
Communication Options
- Modbus RTU
- PROFINET
- PROFIBUS DPV1
- Ethernet / Modbus TCP
- Optional WIFI
Control Functions
- Motor start / stop
- Direct starting
- Star-delta starting
- Two-speed motor control
- Programmable DI / DO
Will ARD3M Work With Your Control System?
- Modbus RTU
For RS485-based PLC, gateway and control system integration. - PROFINET
For industrial Ethernet automation systems. - PROFIBUS DPV1
For PROFIBUS-based industrial automation. - Ethernet / Modbus TCP
For Ethernet-based communication and system integration. - Not Sure Which Protocol You Need?
Tell us your PLC / DCS model and communication requirement.
Already Used in Large-Scale Industrial Projects
Ganfeng Lithium New Energy Materials Project
~1,500 ARD3M Units
Industrial Motor Protection
PROFINET Communication
Large-Scale Deployment
ARD3M has been deployed in a large-scale industrial project requiring centralized motor protection and PROFINET-based communication.
Planning a Similar Project?
Need Help Selecting the Right ARD3M?
Send Your Motor Parameters
You don’t need to know the exact model.
Just send us:
Motor Voltage: 380V / 400V / 660V
Rated Current: e.g. 25A
Motor Power: e.g. 11kW
Starting Method: Direct Start / Star-Delta / Other
Communication: Modbus RTU / PROFINET / PROFIBUS / Ethernet / Not Sure
Quantity: e.g. 100 pcs
