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| Tripping Breaker welding |
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| Darren:
Can someone please remind me what speck breaker I need for a welder? My MIG is 210A and trips the breaker on the highest setting :doh: What safety would I loose if by changing the breaker, ie do I need a separate spur or will it be OK on the main garage ring. Currently have MCB and RCD on the box. |
| John Rudd:
Errr 210A..... :scratch: That cant be the input current rating surely? Is there a spec panel on it with the input requirements? 240vAC xx Amps I'd have thought a 13A outlet would suffice....... |
| Darren:
The 210A will be right at the output voltage but not the input. I have no idea what the input is :scratch: My main breaker on the box is a 63A RCD and the ring is on a 32A MCB. I would have thought it would be enough but I'm sure I've read that a slower reacting earth leakage detecting MCB is required .... ? This I assume allows the transformer input surge to be ignored for a fraction of a second ... or sumut like that ? I only have the problem on the highest setting that flips the trip about 80% of the trigger pulls. So whilst it's almost there it's useless in reality. I could have done with it last week as I was welding some thicker stuff. Instead i just had to go slower and allow the heat to build up. Worked out OK but was a bit of a pain. |
| John Rudd:
--- Quote from: Darren on April 05, 2010, 04:17:49 PM --- My main breaker on the box is a 63A RCD and the ring is on a 32A MCB. I would have thought it would be enough but I'm sure I've read that a slower reacting earth leakage detecting MCB is required .... ? --- End quote --- Just to clarify....the 63 amp rcd is tripping? would indicate a leak to earth... 32amps at 240v is getting on for 8kw plus....Thats a lot of power if the 32 is tripping... You have a fault with your welder...or else the breaker(s) is tired |
| Darren:
The RCD is fine, it's the MCB that's tripping. There is no fault, it's just that the MCB thinks there is when the welders transformer initially sucks juice from the wall ........ found it :) I have a type B MCB and I need a type C :dremel: http://www.tlc-direct.co.uk/Technical/Distribution/Mcb.htm |
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