5 ton AC unit is one of the biggest that can be powered by a generator.

A 5 ton AC unit generates an outstanding **60,000 BTU** of cooling power. This is enough to cool down up to 3000 square feet home.

*How many watts does it take to run such a 5-ton air conditioner?*

5 ton AC wattage can be anywhere **between 4,000W to 8,000W**. That’s between *16 and 34 Amps* (240V circuit).

It gets tricky when we try to determine the size of a generator that can run a 5 ton AC unit.

The key thing is to figure out the overall wattage of such a big air conditioner. Here are 3 simple ways you can do that:

- Check the specification sheet for
**Power**(measured in Watts). - Check the specification sheet for the EER rating. We can
**calculate wattage by dividing BTUs with EER rating**; i.e. 60,000 BTU / 10 EER = 6,000W. - Check the specification sheet for the current (I, measured in Amps) and voltage (V, measured in Volts). We can
**calculate wattage by multiplying current with voltage**; i.e., 25 Amps * 240V = 6,000W.

An average 5-ton air conditioner (with 10 EER rating) will run on **6,000 W**.

Such a 5-ton air conditioner will use **25 Amps** at 240V.

Examples of 60,000 BTU units are 4-zone mini-splits and 5-zone mini-split air conditioners.

## 6,000 W Generator For 5 Ton AC Unit

For most 5-ton air conditioners, 6,000 W power generators will be more than enough. Of course, we also need to think about the start-up wattage. Because these AC units need a lot of power, the safe choice is to get a generator that can handle **at least 7,000 W start-up wattage**.

The best – and most popular – 5-ton AC unit generator is the Westinghouse WGen6000. It’s a 6,000W generator that can deliver up to 7,500W of power; perfect for a 5-ton air conditioner.

This will be more than enough to run a powerful air conditioner optimally.

So, for start up calculations you wouldn’t use the LRA rating for the amperage value of a condenser unit? Using the above method, a 48kV generator would be sufficient for six (5-ton) units?

Hello Miles, you’re correct; LRA rating is not used for a start up calculation. 48kW generator will run 6 units if they don’t surpass 8000W per unit (usually 5-ton units need about 6000W of power).