Product Description
The DPB01 and PPB01 are three-phase mains monitoring relays. They can be operated on both the 3P and 3P+N mains and detect the phase failure and the correct phase sequence (not available on N-terminated versions) as well as possible overvoltages and undervoltages. The supply voltage for the monitoring relays is supplied via the monitored mains. An alarm time lag of up to 30 seconds can be set for the overvoltage/undervoltage alarms.
- The monitoring relay can be used from 208 to 480 V AC and from 50 to 400 Hz
- Adjustable voltage levels and time lag enables a flexible response to alarm conditions
- LED indicator for operating status, alarm and relay status allows for quick troubleshooting
- Two mounting versions: available as DIN rail (DPB01) or plugin module (PPB01)
- Adjustable ON delay: To prevent faults during starting or starting up
- Ultra-high harmonic immunity for noisy environments
- Three-line (3P) or four-line (3P + N) three-phase mains monitoring
- Detection of the correct phase sequence (not for N-ended versions) and phase loss
- Overvoltage and undervoltage setpoints can be adjusted using the front setting wheel
- Time delay
- Centre-zero relay output
