DPB01 and PPB01 are 3-phase mains monitoring relays.

They operate on 3P and 3P+N systems, monitoring phase loss and phase sequence (not present in versions with “N” ending), overvoltage and undervoltage.

Power supply provided by the monitored mains.

Delay on alarm, up to 30s, for over/under voltage alarms.

Benefits

• Wide voltages and frequency ranges. Working in systems from 208 to 480 VAC and 50 to 400Hz.

• Adjustable voltage levels and time delay. To allow a correct response to real alarm conditions.

• Output and status LED indication. For quick troubleshooting.

• Two mounting versions. Available for DIN-rail (DPB01) and Plug-in (PPB01) mounting.

• Adjustable power ON delay. To avoid nuisance tripping at start-up.

• Ultra-high harmonic immunity. For very noisy environments.

Features

• Monitoring 3-phase mains with 3 wires (3P) or 4 wires (3P+N).

• Detection of the correct phase sequence (not present in versions with “N” ending) and phase loss.

• Front dial adjustable overvoltage and undevoltage setpoints.

• Time delay.

• Changeover relay output.