SPUC DIN Rail Mounting UPS Controller

The SPUC, being a UPS controller, it can be used to either convert and existing conventional supply system into an uninterruptible power supply system or else to realize a UPS system by using a separate power supply.

It is suitable for both 12V and 24V systems and it can handle up to 30A load current whilst the suggested battery sizes are from 4 to 12Ah. 

The input of the SPUC has to be connected to a a 12Vdc or 24Vdc source, depending upon the model.

The output is connected to the load which needs to be supplied uninterruptedly. The battery, suggested type is lead acid, is connected to the battery terminals.

DIN rail mounting racks are also available, with or without batteries, for easy installation of the battery aside the SPUC. The nominal charging voltage is 13.6V (or 27.2V).

The charge is carried out in the first stage by constant current until the nominal voltage is reached then by constant voltage.

When the battery is fully charged it stays into “float” cycle. Sulphatation process is prevented by charging with positive/negative pulse current.

If the 24Vdc input is cut off because of mains failure or blackout the SPUC will immediately switch the supply to the load by using the battery stored energy.

There are three relays for remote operation monitoring: “DC OK” provides indication of correct DC output, “Battery fail” indicates a possible failure of the battery and “Backup Mode” provides remore indication that the device is providing power to the load from the battery not from input.

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