This has only started recently and T cut is set usually on 20amp sensitivity.

 

It tripped out twice the first time when there was a thunderstorm in the evening so put it down to that but noticed T cut knob was on 10amp probably happened when cleaning.

 

The second time was a hot morning and tripped on the 20amp so I've put it on 30amp and there's hasn't been a problem.

 

When it tripped on 20amp there was an 18btu air-con going, water pump, fridge,  a washing machine, a shower unit, a a toaster, 2 flat screen TV's and about 3 lights.

 

So question does the T cut need attention, has a wiring problem occured, or was all above borderline. 

For the sake of clarity I'm assuming you have a Safe-T-Cut device and are adjusting the earth leakage sensitivity which will be in mA not A.

 

Setting to 30mA is fine (UK standard for domestic is fixed at 30mA), if it stays on at 30mA no worries.

 

Do check that it trips when you press the "Test" button.

1 hour ago, Crossy said:

For the sake of clarity I'm assuming you have a Safe-T-Cut device and are adjusting the earth leakage sensitivity which will be in mA not A.

 

Setting to 30mA is fine (UK standard for domestic is fixed at 30mA), if it stays on at 30mA no worries.

 

Do check that it trips when you press the "Test" button.

Thanks I see now yes mA. 

So no bother leaving it 30 mA is what I just wanted to know.

 

Out supply is 15/45.

It trips out fine and so does the separate trip switches in the control box.