Phase imbalance relay EMR4-A [t-head2]

The 22.5 mm wide phase imbalance relay is the correct protection device against phase failure. The motor is then protected against destruction. That the phase failure is monitored on the basis of phase displacement can be recognised with a higher motor feedback and an overload of the motor can be prevented. The relay is able to protect motors with a rated voltage of
U_n = 380 V, 50 Hz.