What size inverter to run a freezer?

The 1000 Watts inverter would be adequate to run the freezer. The freezer comes in different sizes. Ensure that the freezer does not consume more than 70% of the total energy the inverter can produce. If other electronics are connected, then they should not cross the 70% trash hold.

What happens when the inverter is over-utilized when the freezer connected?

The inverter needs a sufficient amount of energy to run all the equipment connected to the device, especially, the device runs on electric motors. The consumption of electric motor equipment is very high. 

Solar Inverter
Solar Inverter

The motor uses the magnetic field to move the centre parts at high speed. To achieve the speed, there are multilayer copper wires arranged so that it produces the circular rotation for the central part to move. 

These wires require a continuous flow of electricity to keep the motor running. Also, due to several wires being used in the motor, there will be high energy loss in terms of heat. 

As soon as the freezer reaches its maximum capacity, the consumption of electricity would also go high.

If you connect more than one device to the single inverter, there are possibilities that the inverter would be overloaded.

As a result, the inverter will slow down due to non-availability of the sufficient energy. 

Will a 2000w inverter run a freezer?

Yes. It is possible to run the refrigerator with the 2000 watt inverter. The mid-size fridge would require around 1200 watts of starting power which can be handled with the 2000 watt of the inverter. It would be best if you did not top the inverter with other devices. Every inverter has a maximum capacity. 

As soon as you cross the threshold, the energy distribution would go down, and your device would not receive the required energy from the inverter.

As a result, the connected device will slow down, and it will not work as desire. 

Also, the power consumption capacity of the fridge is determined who long it will work. Check the energy star given by the manufacturer.

The high rating indicates, the device consumes less energy compared to the low rated electric device. 

When you are running the electronics on the equipment, you should only choose the high rating devices for power consumption.

If you consider all the above-given suggestions, you will not encounter any issue with the inverters. The refrigerator would work fine even in high demand.

Will a 300W inverter run a fridge?

There are two things you have to consider when you are running a fridge on the inverter. The motor in the fridge would require three times its standard capacity to startup. 

For example, the small size fridge running on 100 watts would require around 300 to 400 watts to start at the beginning. 

However, the extra power would last for a few seconds, but the inverter should have the capacity to generate sufficient power for the fridge.

The household fridge could handle by the 600 watts power supply from the inverter.

Also, the inverter should have the support of the extra power supply to accommodate the surge power of up to 1800 watts for a split second. 

How many watts does a freezer use?

The household freezer takes around 100 watts. The inverter produces the 1000 watts or 1000VA or 1KVA output energy can run a refrigerator comfortably with no trouble.

However, several other aspects may affect the performance of the inverter. You should note these reasons to avoid any challenges while using it.

  1. A 1000 Watts are designed to power the equipment up to 70% of its capacity. Over 70% of use, the inverter starts slowing down. As a result, some of the connected equipment may stop or decrease its capacity.
  1. If the refrigerator doesn’t have an inverter compressor, then the equipment needs additional power to compensate for the power surge during the startup. Up to 1 to 2 seconds of extra power sources would be required.
  1. The extra power consumption will be 2 to 3 times what the refrigerator generally uses. In the case of a fridge, 200 to 300 watts would require for the first few seconds.
  1. If the inverter is powering more devices, then it will fail to power the refrigerator. Also, the other devices will be slowly downed.

Final Verdict:

Always check the surge power and the freezer require to power the equipment. Take the decision based on the collective numbers.

You can easily find different size and capacity of the inverter in the market. Different types of inverters would have different performing power. 

The average size inverter would be the best for household equipment. Check the specification to ensure that the inverter can run the freezer.

It should power the 300 watts of equipment during the peak time or when starting the equipment. The access power should be supplied when requires without any trouble. 


I’m Matt, a computer and electronic embedded system developer. Currently, working as an electronic engineer. In my leisure time, I do love to blog about technology stuff. Specially, new advance high tech devices. Portable solar systems are one of topic that I love to investigate. They are becoming more powerful day by day which keep me alert.

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