Figuring transformer wattage?

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I'm installing a value actuator (small motor) and want to make sure of the transformer size and fuse protection. What's on the name plate is 24 vac,
60 hz, 0.6 amps. In figuring the transformer:
Am I taking 24 volts times 0.6 amps = 14.4 va
or 120 volt times 0.6 amps = 72 va

I would like to install and in line fuse to protect the transformer and the value actuator. What size would you recommend?

This is simple but I'm not sure and would appreciate advice.

Thanks, Don
 
Your 14.4 va is correct mathematically.
The problem is there will be some inrush current and you have to take that into account.
Often the mfg will provide info on min VA..
Is there just this one motor ?
 
Thanks Augie.
There is only one motor.
I am surprised, 14.4 va is about the size of a door bell transformer.
The manufacters tech support was of no help.
I would like to protect the small motor. It pulls 0.6 amps, so a 1.5 amp fuse should handle the inrush current and protect it better than a 15 or 20 amp circuit breaker.
 
Take a look at 450.3 for your primary protection. Proper fusing will depend on your transf. having thermal protection or not.
A 25 va with no thermal would be a 1 amp fuse, with thermal a 3 amp, I believe
 
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