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[r1]

just been given the above from the old boy next door as he dosnt use it anymore but hes robbed the plug of it.now i know i could just bung a 13 amp fuse in but i do like things to be right.so does anyone no whatsize it should be?
thanks.

[RobG]

More than 1Kw (which it should be) 13Amp

edit, should have typed less

[Kevin Wood]

I would say it's unlikely to be more than a few hundred watts.

It will have quite a high inrush current when starting though, so needs a generously rated fuse for that reason. 5 Amps would be my choice but check the rating plate on the appliance to be sure.

Kevin

[Auto Addict]

I would say it's unlikely to be more than a few hundred watts.

It will have quite a high inrush current when starting though, so needs a generously rated fuse for that reason. 5 Amps would be my choice but check the rating plate on the appliance to be sure.

Kevin

Every deep freezer I have ever bought has always been fitted with a 13 amp fuse.

[Kevin Wood]

It really depends on the rating of the cable fitted.

Could well be that a large freezer would need a 13A fuse due to the inrush current.

Kevin

[Auto Addict]

We've got 2 medium sized chest freezers, and one small freezer that sits on the work surface, all came fitted with 13 amp fuses.

I was surprised.

[Kevin Wood]

We've got 2 medium sized chest freezers, and one small freezer that sits on the work surface, all came fitted with 13 amp fuses.

I was surprised.

 

Partial to the odd Choc Ice, then?

Kevin

[Auto Addict]

We've got 2 medium sized chest freezers, and one small freezer that sits on the work surface, all came fitted with 13 amp fuses.

I was surprised.

 

Partial to the odd Choc Ice, then?

Kevin

No, Mrs AA likes to stock up for a siege

[Kevin Wood]

I suppose it's not something you want to defrost due to a marginal fuse rating so they are probably designed for a 13 amp fused supply.

Kevin

[Andy B]

....

It will have quite a high inrush current when starting though, so needs a generously rated fuse for that reason.  .....

In life before inverters could ramp up a motor, high starting currents for motors were catered for with a specific motor fuse. Although I'm not involved with electrickery these days, they seem to be something of the past now.  :question

[Kevin Wood]

....

It will have quite a high inrush current when starting though, so needs a generously rated fuse for that reason.  .....

In life before inverters could ramp up a motor, high starting currents for motors were catered for with a specific motor fuse. Although I'm not involved with electrickery these days, they seem to be something of the past now.  :question

It's still the case that you can buy fuses and circuit breakers with delay or fast ratings (and various other specialities) but the plug fuse comes in one type only.

The equipment normally has further protection internally where it's required. The plug fuse is mainly there to protect the cable on the appliance so if it has a high inrush current you'd fit a thicker mains cable and a larger fuse.

In some applications, it wouldn't just be a couple of metres of cable but a much more expensive "upgrade" to cope with the surge, so you'd fit a fuse / breaker that would allow short-term overload of the cable but protect it in the longer term. 

Kevin

[Marks DTM Calib]

13A fuse, the inrush on the uber cheap motors used in such appliances is horrific!

And remember, the fuse protects the supply, not the appliance or the cable.

The cable should be rated to be able to tolerate the max rating of the fuse.

And you can still get slow blow fuses for motor type applications (often sand filled) but not in standard household plug format. 

[aaronjb]

And you can still get slow blow fuses for motor type applications (often sand filled) but not in standard household plug format. 

This reminds me of the fuse we found in a friends new eBay special plasma cutter .. it came fitted with a standard household plug which had inside it ..

A standard shape fuse rated at 32A with a piece of steel soldered across it - not even sure why they bothered pretending it was a fuse, may as well have just supplied it with a bolt in there! 

Calculated max draw was way above the rating of the 13A plug, let alone the flex or a household socket!

E-marked my ass.

[r1]

thanks for all replies
tried a 5 amp and it lasted about 15mins/thought id try small and see.had a 13 amp one now in for 1hr and all good.as i didnt know anything about the history of this didnt want to but a big fuse in  that might mask a proplem with the freezer and later on have a big bang

[redelitev6]

 ;)Fuses? you big soft tart! what's wrong with good old aluminium foil?way stronger than fuses