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adityak469
adityak469 Original post #1
May 18, 2021 at 1:10 PM
I was thinking to get a UPS for my PC as power cuts are getting frequent these days in my area but I noticed that my PSU wire has a 16A plug whereas all the UPS in the market only have 6A sockets in them. This doesn't make sense at all :|

If I change my PSU wire to a 6A pin will it work?

Any help is appreciated.
RumbaMon19
May 18, 2021 at 2:41 PM
I was thinking to get a UPS for my PC as power cuts are getting frequent these days in my area but I noticed that my PSU wire has a 16A plug whereas all the UPS in the market only have 6A sockets in them. This doesn't make sense at all :|

If I change my PSU wire to a 6A pin will it work?

Any help is appreciated.

yes it will work. But if the PSU load exceeds 6A then circuit breaker will trip. What is the power of your PSU?
adityak469
May 18, 2021 at 2:56 PM
yes it will work. But if the PSU load exceeds 6A then circuit breaker will trip. What is the power of your PSU?
550W, max load would be around 400W though rn, I'll upgrade in the future.
RumbaMon19
May 18, 2021 at 3:01 PM
550W, max load would be around 400W though rn, I'll upgrade in the future.

that will be fine, the load will be about 2.3A. You can use a PSU of upto 800-1000watt on 6A socket.
adityak469
May 18, 2021 at 3:03 PM
that will be fine, the load will be about 2.3A. You can use a PSU of upto 800-1000watt on 6A socket.
That's a relief, I'll change the wire then. Pretty stupid to give a 16A pin for a 550w PSU I guess
RumbaMon19
May 18, 2021 at 3:08 PM
That's a relief, I'll change the wire then. Pretty stupid to give a 16A pin for a 550w PSU I guess

This was mostly done as in some houses, the wiring used is not upto the mark and may not sustain 6A. This used to be scenario about 20yrs ago. So the manufacturers would go with a safer side and in order to prevent any damage they would use 16A plug. Now everything has improved and this is very uncommon now.

Another reason can also be that as manufacturers also manufacture 1000watt and server grade 1500-2000watt psu, they provide a common cable to save on manufacturing costs.

Also, as you are using it with ups, you may check the maximum rating of UPS. It is around 4.5 amps before the fuse blows on majority of them. 2.3amp is fine for it though.
adityak469
May 18, 2021 at 3:42 PM
This was mostly done as in some houses, the wiring used is not upto the mark and may not sustain 6A. This used to be scenario about 20yrs ago. So the manufacturers would go with a safer side and in order to prevent any damage they would use 16A plug. Now everything has improved and this is very uncommon now.

Another reason can also be that as manufacturers also manufacture 1000watt and server grade 1500-2000watt psu, they provide a common cable to save on manufacturing costs.

Also, as you are using it with ups, you may check the maximum rating of UPS. It is around 4.5 amps before the fuse blows on majority of them. 2.3amp is fine for it though.
That makes a lot of sense.


I had one more doubt, I need power backup for only 5 mins as the generator in my building comes online after that. Will a 600V UPS suffice or I need to get a 1kV one?
RumbaMon19
May 18, 2021 at 5:22 PM
That makes a lot of sense.


I had one more doubt, I need power backup for only 5 mins as the generator in my building comes online after that. Will a 600V UPS suffice or I need to get a 1kV one?

that depends on your Components aswell as power factor of your psu, As there is a less chance you wud be running PSU at its full load i.e. 550 watt. But even if you run it on full power, you need to buy something in the range of 850-1000VA. 600VA wud be able to run it for 2-3minutes only.

a simple relation can be

UPS(VA) = PSU(Watt) x 1.6

this is just a rough one, and gives a good idea. If you are not a heavy gamer and load will be 350-400watt, a 600VA is enough.
TheSloth
May 18, 2021 at 6:50 PM
That's a relief, I'll change the wire then. Pretty stupid to give a 16A pin for a 550w PSU I guess
Don't change PSU wire! Just use a 6A adapter. Plug the PSU in adapter, then plug the adapter in UPS.
adityak469
May 19, 2021 at 2:26 AM
that depends on your Components aswell as power factor of your psu, As there is a less chance you wud be running PSU at its full load i.e. 550 watt. But even if you run it on full power, you need to buy something in the range of 850-1000VA. 600VA wud be able to run it for 2-3minutes only.

a simple relation can be

UPS(VA) = PSU(Watt) x 1.6

this is just a rough one, and gives a good idea. If you are not a heavy gamer and load will be 350-400watt, a 600VA is enough.
Thanks for so much info, I'll go with a 1kV just to be sure.
TheSloth
TheSloth #11
May 19, 2021 at 8:36 AM
Thanks for so much info, I'll go with a 1kV just to be sure.
*geek.digit.in/community/threads/need-ups-for-pc-with-ryzen5-3600-and-1050ti.209598/
adityak469
May 19, 2021 at 12:15 PM
Don't change PSU wire! Just use a 6A adapter. Plug the PSU in adapter, then plug the adapter in UPS.
I changed it and lo behold it's working
*geek.digit.in/community/threads/need-ups-for-pc-with-ryzen5-3600-and-1050ti.209598/
Thanks a lot, I'm going for a luminous 1kV one(costing 4.3k). APC 1.1kV is costing me 7.5k, which is as expensive as my GPU xD