approx 4 times out of 5, by Fox 13" thicknesser trips the rcd in the workshop when I try to start it. I am assuming some sort of surge of current when it starts. Would the wattage figure printed ont he side be a max or an operating wattage? It quotes 1800W at 240V. Assuming its actually 220V, whoch is what I believe we get, it should draw only 1800/220 = 8.18A. The rcd for the power circuit is 16A.
Thicknesser tripping fuse
- Thread starter wabbitpoo
- Start date
Help Support UKworkshop.co.uk:
Have you a " C " type trip fitted in your fuse box ?
DaveL
Established Member
Blister is correct here, you need a 'C' type trip.
The current you have worked out is the steady state run current, the start up surge can be 3 or 4 times that, for a short time. The 'C' rated trip will allow the surge to pass without tripping but still provide protection for an overload.
The current you have worked out is the steady state run current, the start up surge can be 3 or 4 times that, for a short time. The 'C' rated trip will allow the surge to pass without tripping but still provide protection for an overload.
wabbitpoo":3vx5xjst said:
If its tripping you have not got one fitted
Take your original to an electrical wholesaler and say " can I have a " C " rated one of these please
Sorted :wink:
head clansman
Established Member
hi
what else is running on the same fuse at the same time anything? or is the thicknesser on it own supply ? hc
what else is running on the same fuse at the same time anything? or is the thicknesser on it own supply ? hc
Hello Wabbitpoo
You say
Fox 13" thicknesser trips the RCD in the workshop.
Does the consumer unit have one RCD feeding more than one circuit breaker?
A picture would help.
If it's just the 16 amp breaker tripping, fitting a type C replacement should fix it, but the RCD tripping might point to a different problem.
Cheers
Dave
You say
Fox 13" thicknesser trips the RCD in the workshop.
Does the consumer unit have one RCD feeding more than one circuit breaker?
A picture would help.
If it's just the 16 amp breaker tripping, fitting a type C replacement should fix it, but the RCD tripping might point to a different problem.
Cheers
Dave
Sorry, I should have been more clear. The CU has two cartidges, one for the lighting and one for the ring main. The switch on the latter is tripping, not the switch on the CU itself.
It still trips when nothing else is plugged in to the power circuit.
I will look into getting a C type replacement, although from what I have just read it might not be allowed for a given earthing system. Looks like I should seek pro advice......
It still trips when nothing else is plugged in to the power circuit.
I will look into getting a C type replacement, although from what I have just read it might not be allowed for a given earthing system. Looks like I should seek pro advice......
Hello again WP
If you have a spare way on the CU, you could fit a radial circuit just for the thicknesser with its own type C breaker.
That way, you won't have everything on the ring protected by a type C device.
If you are in doubt, you would be wise to ask a pro.
Cheers
Dave
If you have a spare way on the CU, you could fit a radial circuit just for the thicknesser with its own type C breaker.
That way, you won't have everything on the ring protected by a type C device.
If you are in doubt, you would be wise to ask a pro.
Cheers
Dave
9fingers
Established Member
Sounds like you have a non-standard set up anyway.
A proper ring of 13 amp sockets would have a 32 amp type B breaker. Maybe the power feed to your w/s CU is only a single 2.5mm cable in which case the installer possibly did the best thing by fitting a 16 breaker.
A 16A type C will sort out your problem provided the earth impedance is low enough.
So yes get is checked by a sparky if you are not sure.
Bob
A proper ring of 13 amp sockets would have a 32 amp type B breaker. Maybe the power feed to your w/s CU is only a single 2.5mm cable in which case the installer possibly did the best thing by fitting a 16 breaker.
A 16A type C will sort out your problem provided the earth impedance is low enough.
So yes get is checked by a sparky if you are not sure.
Bob
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