DPC02DM44 True RMS 3-Phase voltage and frequency monitoring relay Benefits Widest input voltage range and frequency. Very wide input voltage range: from 208Vac to 690Vac 15% (177Vac to 793Vac), both 50Hz and 60Hz. Adjustable voltage ranges. 11 voltage ranges can be selected by front DIP Switches. Under/over voltage or frequency tolerance. Voltage and frequency are both monitored at the same time. Switch mode power supply. Very low consumption, heat and dissipation. Control circuit power supply is filtered and therefore immune to mains disturbances, noise and harmonics. Output LED indication. One LED each output provides output status information. 2 relay contact outputs. Two relay outputs provide electrical (remote) indication of the alarms/output status. 2 delays on alarm. Two independent alarms for under/ over voltage and frequency tolerance. Description DPC02DM44 relay is a multifunction threephase mains monitoring device. Power supply is provided by the monitored mains, is wide input range and switch mode. Consumption, dissipation and consequently heat are very limited. Applications DPC02DM44 is suitable for applications where it is necessary to monitor, besides the phase presence and correct phase sequence of threephase mains, also the correct supply voltage and frequency: it is particularly suited for generators, either fuel powered or renewable energy ones, and on CHP systems. It is also indicated to monitor supply voltage of loads sensitive to frequency fluctuations and correct voltage. Main functions 3Ph or 3Ph+N monitoring From 208V to 690V 50 or 60Hz, nominal voltage and frequency Over / under voltage and frequency tolerance Phase sequence and phase loss alarm 2 x 8A SPDT relay outputs 11/12/2018 DPC02DM44 DS ENG Carlo Gavazzi Controls S.p.A. 1DPC02DM44 Structure A B C G D H E I J K F L Element Component Function A Input/supply terminals L1, L2, L3 and N (when necessary), double cage clamp terminals B Alarm 1: Voltage Overvoltage setting dial C Output status LED (2) Yellow, ON when output 2 active (No Alarm) D Output status LED (1) Yellow, ON when output 1 active (No Alarm) AlarmA and Power Green in normally supplied conditions E ON LED Red flashing or steady when an alarm condition is triggered Output 1 relay contacts terminals F Output terminals (1) 15 COM, 16 NC*, 18 NO* * when power supply not applied. G Alarm 1: Voltage Undervoltage setting dial H Alarm 2: Frequency Frequency tolerance percentage setting dial I Delay on alarm 1 Delay on alarm 1 setting dial. Delay from 0.1s to 30s J Delay on alarm 2 Delay on alarm 2 setting dial. Delay from 0.1s to 30s K DIP switches See fig. 1 (DIP switch settings table) Output 2 relay contacts terminals L Output terminals (2) 25 COM, 26 NC*, 28 NO* * when power supply not applied. 11/12/2018 DPC02DM44 DS ENG Carlo Gavazzi Controls S.p.A. 2