VON DUPRIN PS904

A: Yes, the 900-BBK is a kit that contains the battery backup circuit board and (2) 12V 7 amp/hour batteries which will provide battery back up to the unit when AC fails and will also charge the batteries when the AC power is present.

The 900-BBK kit includes the 900-BB which is the circuit board for battery backup that attaches to the main power supply board and the 900-BAT which is a kit containing (2) 12V 7 amp/hour batteries that connect to the 900-BB.

A: Battery backup can be added to the PS900 series power supplies. Order the 900-BBK as seen here:

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to get the battery backup board and batteries for field installation.

A: Here is typical wiring diagram for a safety interlock with override buttons:

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