To determine the number of watts drawn for a particular Barracuda Networks appliance, multiply the number of volts and the number of amps drawn per the Barracuda product datasheet. For example:
watts = volts x amps
Barracuda Email Security Gateway 300
|Barracuda Web Security Gateway 410||1.4||168 watts|
|Barracuda Web Application Firewall 460||1.4||168 watts|
The amperage usage in the above examples is based on 110V. If you work with 220V, still use the wattage shown; however, the amperage usage will be lower (ex: 144 Watts / 220 V = 0.65 Amps).
For more information, see the Datasheet for your Barracuda appliance in the Products section of https://www.barracuda.com.