DPA71DM23 Carlo Gavazzi

DPA71DM23, Control Relays and Protection Three-Phase Sequence Control and Phase Breakage Model DPA71, DPA71DM23, Sequence Control Relays and Total or Partial Phase Breakage for Three-Phase Systems. With measuring scale from 208 to 480 WL covered by 2 multi-voltage relays. For DIN rail mounting. Box of 35.5 mm. for DPDT version, very suitable for mounting on front and back panel. These relays allow to detect regenerated voltages of up to 85% of the nominal voltage (phase phase)., DPA71DM23, L'equipment DPA71 measures its own three-phase supply voltage. The relay connects when all phases are present and the phase sequence is correct. The relay disconnects when one of the phase-neutral voltages falls below 85% of the other phase-phase voltages or when the phase sequence is not correct. Example 1 The relay controls the supply voltage so that the phase sequence is correct and the voltages are present in the 3 phases. Example 2 The relay disconnects when one of the phases is interrupted when the regenerated voltage does not exceed 85% of the phase-phase voltage of the network.