• Increase font size
  • Default font size
  • Decrease font size

What does VA mean?

VA is an abbreviation of the electrical term volt-amps, and indicates a capacity of power. For example 240 volts x 12.5 amps = 3000VA. It is used by UPS manufacturers more often than Watts because it makes the UPS sound bigger.

What is the difference between VA and Watts?

Put simply

  • VA is a measure of power supplied
  • Watt is a measure of power consumed

Not really very simple is it?

The main thing you have to remember is that the Watt rating will always be lower than the VA rating. As manufacturers market their equipment based on the VA rating you should look closely at the Watt rating of your prospective purchase. Below we have listed four different APC UPS models, all rated at 1500VA but all with different Watt ratings

There is a technical explanation for the difference, it relates to 'Power Factor' but it is quite an indepth topic which we wont be covering here. The important thing that you understand is that the power figure that you need to work off in determining which size UPS is right for you is the Watt figure.


Facebook Twitter Digg Delicious Stumbleupon Google Bookmarks 


Shopping Cart

The shopping cart is empty

Pricing Discounts

Free Shipping for Battery Kits over $300 to Metro areas.
Government orders accepted

read more


How did you find our site?

Contact Us

Email: sales@apcrbc.com.au

Phone: 1300 799 161

Onsite Service

Need someone to replace the batteries or install new equipment, we can help with service providers in every capital city

read more

Short Battery Life?

We can perform a calibration on your UPS battery charger to extend the life of your UPS batteries

read more

Looking for other APC Products?

As an APC Select Partner we have access to the full range of APC products at very competitive prices.

read more