J
Jim Newman
Hi, this is my first post.
I have just had 2 bathrooms renovated with lots of new lighting which is on the same 5 amp mcb as the adjacent 2 bedrooms. I have calculated that the total demand on the mcb is 3.3 amps. The consumer unit is about 18 years old and is a Wylex NNEM 1214. The 5 amp mcb would trip after 1 or 2 minutes when all the lighting is switched on so I exchanged the connection with an adjacent 5 amp mcb which trips after about 20 minutes.
I don't understand why a 5 amp mcb should trip when the demand is only 3.3 amps.
I am not an electrician but do have a degree in electronics so it is well within my capacity to make the change if you think this is the best course of action.
Thank you.
Jim Newman.
I have just had 2 bathrooms renovated with lots of new lighting which is on the same 5 amp mcb as the adjacent 2 bedrooms. I have calculated that the total demand on the mcb is 3.3 amps. The consumer unit is about 18 years old and is a Wylex NNEM 1214. The 5 amp mcb would trip after 1 or 2 minutes when all the lighting is switched on so I exchanged the connection with an adjacent 5 amp mcb which trips after about 20 minutes.
I don't understand why a 5 amp mcb should trip when the demand is only 3.3 amps.
- What do you recommend?
- Should I replace the 5 amp mcb with a 6 amp one which I have seen on webpage: 6 Amp Wylex MCB ?
- Would it fit physically?
- Do mcb's get tired after years of use?
I am not an electrician but do have a degree in electronics so it is well within my capacity to make the change if you think this is the best course of action.
Thank you.
Jim Newman.