CARLO Monitoring Relays 3-Phase Sequence and Phase Loss
Measured variables：Phase sequence / Phase loss / Voltages
Output：SPDT electromechanical relay with change-over contacts
Power supply：208 to 480 VAC ±15% (177 V to 552 V)
Operating temperature：-20° C to 60° C (-4° F to 140° F)
Protection degree：IP20
Features
Description
DPA51 is a 3-phase mains monitoring relay.
It operates on 3P systems, monitoring phase loss and phase sequence.
Power supply provided by the monitored mains. For mounting on DIN-rail.
Main features
• Monitoring 3-phase mains with 3 wires (3P).
• Detection of the correct phase sequence and phase loss.
• Changeover relay output.
Benefits
• Wide voltages ranges. Working in systems from 208 to 480 VAC.
• Output and status LED indication. For quick troubleshooting.
• Regenerated voltage detection. To detect phase loss even while the motor is running.
• High Compactness. 17.5 mm DIN rail housing
Applications
DPA51 offers solutions for a wide range of applications: lifts, escalators, HVAC, material handling, pumps, compressors and mobile machinery installations.