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“ power supply battery backup ”

Resolution: Some transformers in the power supplies provide a little humming noise and that is normal. If the humming in Von Duprin PS873 power supply is loud follow these steps. Remove the load from the outp...:

Can Battery Backup (BB) be added to a PS900 series power supply in the field?

Resolution: Battery backup can be added to the PS900 series power supplies. Order the 900-BBK to get the battery backup board and batteries for field installation.:

How long will the battery back up work for on the PS914-900BBK?

Resolution: Attached table provides how long the battery back up will last with a PS914 power supply. Load (Amp DC) Battery backup time Comments 0.3 Amp 20 hours Continuous load ...:

Are the batteries for the PS 914 BBK the same as the ones from the 873 BB?

Resolution: The battery for the PS873 and PS914 are the same, 7AH sealed Lead Acid battery.:

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“ power supply battery backup ”

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