Power supply discharge unit SDU

The Safe Discharge Unit SDU discharges the capacities to a desired, safe voltage level within a reasonable timeframe. The safe discharge unit with the type designation SDU-200 is able to hold ca. 200 kilowatt-seconds of energy at a discharge capacity of around 1,400 watts. Connected to the DC link by means of a DC switch, the safe discharge unit can be used to ensure a safe voltage level of the frequency inverter including storage units, for example during maintenance. An emergency discharge unit is also integrated. The safe SDU discharge unit is suitable for direct integration into any capacity network, for instance into large DC links. It is delivered with a suitable DC switch that can connect to an additional SDU - in the event that more power, and thus more energy consumption or shorter discharge times, are required. The switch is equipped with a sensor that indicates whether the SDU is connected. An emergency discharge option is also available and an additional, overload-proof resistor has been built in for this purpose. In all, the SDU – which is overload-proof and ensures the safety of maintenance staff - is considered a well-engineered periphery product for DC links with large capacities. The unit is particularly suited to our smart dynamic energy management devices and its dimensions mean it fits perfectly into the network. Control cabinet maintenance work required whilst the capacities are still charged? To this end, our connectible, overload-proof resistor unit is the perfect match. It discharges the capacities to a desired, safe voltage level within a reasonable timeframe.