Protection Relays: MPS-6


The MPS-6 is an advanced motor protection and control relay for
protection, control, and supervision for Large Low Voltage Motors.

Motor Protection & Control

The MPS-6 is based on the latest generation of microprocessor. Its advanced Motor Protection and Control circuitry, allows for Protection, Control, and Supervision for single motors or motors operating through Motor Control Centers (MCC).

Advanced Protection

MPS-3000 Application
  • Monitoring 3-phase currents, 1-phase voltage and 3 temperature inputs
  • Comprehensive protection and control package
  • Power measurement (single phase voltage measurement)
  • Energy (KWH) display and energy pulse output
  • Programmable analogue output
  • Real time clock
  • Statistical data of last 10 trips, with time and date stamp
  • RTD Bias (for Thermal Overload)
  • Unbalance (Negative and Positive Sequence)
  • Unbalance minimum time 1-30 seconds, preventing fast response
  • Multiple Thermal Overload curves
  • Unbalance Bias (for Thermal Overload)
  • Unique built in software, allowing the learning of current and temperature fault simulation
  • Too Many Starts Pre Alarm, configurable to energize dedicated output relay
  • I>>0 Energizes output relay B upon Trip (upstream breaker trip)
  • Every fault group can be configured to energize output relays A, B & C
  • No Start Process - starting method, allowing switching to run, if I>= 10%
  • Capture and display of minimum and maximum RMS average of three phase current, one voltage, minimum and maximum frequency
  • G/F During Start setting, new feature to eliminating nuisance ground fault tripping with residual CT
  • Emergency Restart function
  • Restart (after mains or control voltage failure)
  • Separate Aux Power Supply and Control Voltage
  • MODBUS group of 20 user selected actual data parameters for fast scanning
  • MODBUS communication (up to 19200 bps) - Remote parameter programming, control & supervision
  • 6 programmable discrete inputs
  • 6 programmable output relays
  • Large and lit LCD display
  • Dual control input AC or DC (same unit for 85V to 230V)
  • Small din standard dimensions (fits into MCC drawer)
  • Cost effective control solution
  • Easy installation & operation