Phase and Frequency Control Relay
DC and AC voltage and frequency monitoring (5 Hz…50 Hz…60 Hz…70 Hz – 400 Hz)
TRMS measurement (true RMS AC+DC)
Monitoring: Undervoltage, overvoltage, imbalance, and phase loss; Underfrequency, overfrequency
for single-phase or three-phase networks or DC voltage compatible with variable speed drives (built-in PWM filter)
Phase sequence monitoring (optional)
RPL23uC: Micro-interruption detection relay
RPL23peak: Peak voltage detection relay
RPL23Ho: Zero-sequence voltage protection relay
RPL23F: Frequency control relay up to 400 Hz
Voltage and fault display for rapid diagnostics
Configuration via pushbutton under the swivel front panel
Universal auxiliary power supply 20–265 V AC/DC or 100–400 V AC/DC
SIL2 option according to IEC 61508
The RPL23 network monitoring relay provides maximum protection for machinery and equipment,
, and detects network and voltage faults to prevent serious consequences.