Hi everyone! As part of my VFD upgrade project, I have purchased a neat "control" transformer. This xformer accepts my 240 volt line and has a 115V secondary and a 24V tap as well.

The transformer is rated 100VA. Stupid question time (I should know this), how do I determine the acceptable load for the secondary circuits? For example, let's say I have a contactor coil that must close, 115V and 100 mA. Also, a cooling fan, 115V 500 mA. What is the formula for determining the VA loading of this combo?

Any hints appreciated. Thanks.

Swede