DPB51CM44B006 Carlo Gavazzi

DPB51CM44B006, Three-phase Control and Protection Relays, Three-phase with neutral Model DPB51 CM44B006, DPB51CM44B006, Voltage control relay for three-phase or three-phase systems with neutral. It controls the sequence of phases, the loss of phases or loss of the neutral. The relay does not require adjustments. The selection between triangle or star is made with a bridge between terminals Z1 and Z2. Measurement scales with triangle connection from 280 to 480 WL and from 120 to 277 WL with star connection available with a multi-voltage relay. 17.5 mm box suitable for panel mounting., DPB51CM44B006, Connected with the 3 phases (and neutral) the DPB51 relay connects when all 3 phases are present at the same time, the phase sequence is correct and the phase-phase (or phase-neutral) voltage levels are within the selected limits. If the phase sequence is incorrect or a phase or neutral loss occurs, the output relay will disconnect immediately after a delay period of 200 ms. The fault will be indicated by the red LED flashing at 5Hz during the alarm situation. If the voltage is below the selected minimum level, the red LED will light up. Example 1 (main network control) The relay controls the correct sequence of phases and the presence of all phases and the neutral. In case of failure, the output relay opens. Example 2 (load control) The relay disconnects when one or more phases are interrupted, or if the phase sequence is incorrect for the direction of rotation of the motor.