BMR HJ 103RX

The HJ 103RX type series measures the current in all three phases; however, it has only one regulation channel available, with the option of controlling three groups of appliances. If the set value of current is exceeded in any of the measured phases, the first group of appliances is disconnected. The device will store the value of the current drop which it will use for the calculation of the return limit. If the monitored value is exceeded again, another group is disconnected after 3 seconds. The group of appliances will be reconnected after the current has dropped below the set limit again, decreased by the current fall stored during the last disconnection of the group. The value of current can be set within the range of 1 to 100A, in 1A steps. Measurement Transformers are components of the regulator. This type series is intended for buildings where the majority of appliances are three-phase. For higher currents, the HJ11x series with separate MTs can be used.