Required input voltage: 8 to 24 volts AC (or DC)

(allowable peak input 48 volts)

(required current 120mA   i.e. very low power)

The shaker uses only 120mA and therefore can normally be added to a system without any effect on existing equipment.

The highly flexible input requirement allows use with all bell transformers that we have come across (including American transformers).

Please see Electric Doorbell (battery powered) for all other non electrical information