Feature of mPRO-90 Motor protective relay
| Features | Small & compact User selectable external CTs(04 types) 7 Segment Display (4 x 1 row) 2 Trip Relay (Fail Safe operation) |
| Protection | Over-Load Short Circuit Under current Unbalance Phase Reversal Locked Rotor Earth Fault (Residual / ZCT) Stall Phase Loss |
| Metering and monitoring | 3 Phase RMS Current Earth Current Residual (ZCT) Thermal content (%) Unbalance (%) |
| Record | Fault Record Accumulated Motor Run Time |
Specification of mPRO-90 Motor protective relay
| Operational current | 0.3-8.0x IFL |
| Frequency | 50/60Hz |
| Auxiliary supply | 170-280V AC |
| Protection | Over-load, under-current, short circuit, lock rotor, stall, unbalance, phase loss, phase reversal, earth fault |
| Display | 7-segment LED display |
| Trip relay contact rating | 1 C/O contact, 10A/250V ac or 5A, 30V DC 1 N/O contact, 10A/250V ac or 5A, 30V DC |
| Operation | 0℃ to 70 ℃ |
| Standard | IEC 60947-4-1 IEC61000-3-2 IEC61000-3-3 |
Application of mPRO-90 Motor protective relay
Every motor failure causes a production stop and costs for service. A cable cut, phase failure, short circuit, or overload can destroy the motor or pose a danger to the whole production line and to the people who work there. This is the reason why reliable motor protection is very important and thus mPRO works as a safeguard. It can be used in the following areas :
- Motor Control Center (MCC) application.
- Integrated Process & Electrical Control with Protection.
- Can be used in inverter control circuits (20-200 Hz).
