Model: 7SR105 (Rho Series – Motor Protection)
Case Type: Size 4, 4U high, non-draw-out
Binary Inputs/Outputs: 6 BI/Os
Communication: Front USB port and rear RS485 (MODBUS RTU / IEC 60870-5-103)
Inputs: RTD temperature inputs (optional)
Display: LCD with local and remote measured value visualization
Control: Integrated motor start/stop operation and trip command
Functions: Protection, monitoring, metering, and data logging
Protection Functions:
Stall Protection (14)
Undercurrent (37)
Current Unbalance (46)
Phase Reversal (46Ph Rev)
Start Protection (48/66)
Motor Thermal Overload (49R)
Time Overcurrent (50/51)
Earth Fault (50/51G/N)
Backspin Protection (81B)
Temperature Inputs (RTD)
Supervision: CB Fail (50BF), CT Supervision (60CTS), Trip Circuit Supervision (74T/CCS)
Monitoring: Instrumentation, Event/Fault/Waveform records
Main Features:
Cold Load Settings
Two Setting Groups
Password Protection
Self-Monitoring
Circuit Breaker Trip Counter
Compact & reliable motor protection
Compliance: IEC 60255
