All appliances require power to operate when they’re plugged in and turned on. The power they consume is typically measured in Watts or in Amps.
You can typically find these power ratings on the appliance’s energy label or specifications tag. The higher the number, the more power is used by the appliance. For example: A table fan would typically use less than 30 Watts, while a chest freezer could require 220 Watts.
Following so far? Good.
This is where it gets tricky. Let’s say your chest freezer is rated at 220 Watts, and you’re planning to purchase an AVR or transformer to protect your chest freezer from voltage fluctuations. You need to make sure the AVR or transformer’s power capacity can handle the chest freezer’s power consumption.
Would using a 220 Watts true-rated AVR or transformer work?
Unfortunately, no.
Not because the AVR or transformer is defective, but because you still need to take into consideration the starting watts, also known as the peak power consumption of the appliance.
Unless otherwise specified, the 220w indicated in the chest freezer’s energy label would refer to its continuous power consumption, and NOT the peak power consumption
The distinction between these two types of power consumption is as follows:
- Continuous Power Consumption (also known as Running Watts): Power the appliance continuously uses to run the appliance
- Peak Power Consumption (also known as Starting Watts or Surge Watts): Startup power the appliance requires to even turn on, especially for larger appliances with motor. This short and brief boost of power is meant to get the motor going, and requires more watts than the standard rated power consumption. After an initial surge (typically a few seconds), these appliances would then return to a more constant power demand (continuous power consumption)
As such, an appliance that usually requires 220 Watts to operate, may need much more to start up. A good rule of thumb to estimate peak power consumption is to multiply the continuous power consumption by 3. In this case, that means it would take ~660 Watts to start up the chest freezer. Therefore, you’d require an equivalent capacity AVR or transformer.
What if there’s no wattage information provided, BUT you do have the Amps and Voltage data? Imagine the Wattage information can’t be seen in below Energy Guide.
In this case, you can make use of the Amps and Voltage data to get the Watts. Here, we see a rated current 1.5A and rated voltage of 220V. To get to the Watts, simply multiply the Volts and Amps together.
Watts = Volts x Amps = 220V x 1.5A = 330 Watts
This is just the continuous power consumption however, so you’d have to multiply this by 3 to get to the peak power consumption. In effect, you’d get a peak power consumption of 990 Watts (330 Watts x 3).
You might notice that when using Amps, you get a higher Watts compared to our original calculation of 660 Watts. To be safe, we recommend you go with the higher of the two.
Having said that, we highly encourage buyers to also check with the appliance manufacturer directly. As they designed these appliances, they would have a more accurate idea of the actual startup power requirement would be.
Pano po Kung Ang watts Ng power supply Ng computer is 1000w ano po watts Ng surge protector and avr na mareccomend nyo tnks
Good day! Magkaiba po ang power supply sa power consumption, maaari pong mas mababa ang actual power consumption vs power supply ng computer ninyo. However, kung 1000 Watts talaga ang power consumption ng inyong computer, we would recommend the following:
– Extension Cord with Surge Protector: https://panther.ph/product-category/appliance-protection/voltage-protection/extension-cords-w-voltage-surge-protector/
– AVR: PVE 1001 – https://panther.ph/product/pve-1001-1000w-relay-type-avr-output-220v-ac/
We hope this helps!
I have a 110 volt, 980 watts portable aircon. Will my 3,000 watts AVR transformer suffice? Can I plug it into an ordinary wall outlet?
Good day!
1. Do you have the ampere rating of the portable aircon, just so we can be sure that the 3000 Watts AVR would suffice?
2. Does your AVR include a Step-down transformer (from 220V to 110V)?
Kindly let us know and we can then provide a clearer answer to your question. We hope this helps!
The ampere rating of the portable aircon is 8.5 A @ 115 volts. My AVR with a capacity of 3000 watts includes a stepdown transformer from 220V to 110V. I am going to plug it in ordinary wall outlet. Thank you for your prompt reply.
Good day! Yes, the PVS 3000 would work well with your portable aircon, given specifications of 8.5A @ 115V.
PVS 3000 link: https://panther.ph/product/pvs-3000-servo-motor-type-avr/
We hope this helps!
Thank you for the reply.
Furthermore, I would like to verify if I can plug the air conditioner with the AVR to my wall outlet (NOT dedicated) where I would also plug my computer with a separate UPS? If I can plug only my portable air conditioner and not the computer, I will look for a separate circuit for my computer. Thank you
Good day! It would be important to check the capacity of your wall outlet (you can check with the electrician who installed the electrical lines in your home). If the aircon power + the computer power is within the wall outlet capacity, then it should be alright. We hope this helps!
Hi Sir please recommend the size of AVR if I will use 5 units of Dynamelt D25 series Adhesive Supply unit on it?
Dynamelt D25 series
Rated Voltage:230v
Freq:60HZ
Current:22 Amp
Wattage:15800 Watts
Thank’s in advance sir
Good day! You would require a 16,000 Watts AVR for your Dynamelt (to account for the startup power motor consumption). Unfortunately, we currently manufacture up to 5,000 Watts AVRs in only, but can offer up made-to-order higher wattage AVRs if needed. If you’re interested in an MTO (made-to-order) AVR, kindly email us your detailed requirements pantherproduct@gmail.com, and we will get back to you with a quotation and lead time. Thank you!
LG window type A.C
115V , 12A
60hz
14000 btu/h
what AVR capacity can you recommend.. thankyou
Good day! If 115V 12A is the PEAK power consumption, then we would recommend the PVR 2000: https://panther.ph/product/pvr-2000-relay-type-avr/
This is 2-in-1 already, which has an AVR (to protect from voltage fluctuation) and a transformer (to convert the 220V voltage of the Philippines to the 115V required by your AC). This also includes power-on-delay protection. We hope this helps!
what is AVR needed for my 2200 watts automatic washing machine front loader
Good day! So we can make sure we are providing an accurate recommendation, could you provide the ampere and voltage of your automatic washing machine front loader as well? Thank you!