What Size Mcb Do I Need For A 10 5 Kw Shower at Donald Cambron blog

What Size Mcb Do I Need For A 10 5 Kw Shower. 43.8a @ 240v but 42a @ 230v so just over. Older type wire fuses are not. My question is the shower is 10.5kw and i'm going to wire it in 10mm on a 50a mcb, with regards to the cable run i'm not sure. The mcb size must be equal to or the nearest size above the kilowatt rating of the shower see table below. Not unsafe as such but might weaken the mcb after a time. I've replaced an old electric shower with a 10.8 kw shower. However, i need to replace the current 30 amp mcb with a higher rated. Technically it is not right. Its on a 10mm² cable laid across loft on top of. A 10.5kw shower would (in principle) pull about 46a in current a 10mm² flat twin and earth cable is only rated for that level. If it's in conduit or trunking, or buried in plaster, or bunched with other cables it must be 10mm. You must also check your supply, main fuse, tails, consumer unit, and maximum demand are all up for this extra load.

12 Way Mcb Box Size edu.svet.gob.gt
from edu.svet.gob.gt

My question is the shower is 10.5kw and i'm going to wire it in 10mm on a 50a mcb, with regards to the cable run i'm not sure. Its on a 10mm² cable laid across loft on top of. Not unsafe as such but might weaken the mcb after a time. You must also check your supply, main fuse, tails, consumer unit, and maximum demand are all up for this extra load. I've replaced an old electric shower with a 10.8 kw shower. If it's in conduit or trunking, or buried in plaster, or bunched with other cables it must be 10mm. However, i need to replace the current 30 amp mcb with a higher rated. A 10.5kw shower would (in principle) pull about 46a in current a 10mm² flat twin and earth cable is only rated for that level. 43.8a @ 240v but 42a @ 230v so just over. Technically it is not right.

12 Way Mcb Box Size edu.svet.gob.gt

What Size Mcb Do I Need For A 10 5 Kw Shower If it's in conduit or trunking, or buried in plaster, or bunched with other cables it must be 10mm. However, i need to replace the current 30 amp mcb with a higher rated. A 10.5kw shower would (in principle) pull about 46a in current a 10mm² flat twin and earth cable is only rated for that level. Older type wire fuses are not. If it's in conduit or trunking, or buried in plaster, or bunched with other cables it must be 10mm. Its on a 10mm² cable laid across loft on top of. Technically it is not right. Not unsafe as such but might weaken the mcb after a time. The mcb size must be equal to or the nearest size above the kilowatt rating of the shower see table below. You must also check your supply, main fuse, tails, consumer unit, and maximum demand are all up for this extra load. My question is the shower is 10.5kw and i'm going to wire it in 10mm on a 50a mcb, with regards to the cable run i'm not sure. I've replaced an old electric shower with a 10.8 kw shower. 43.8a @ 240v but 42a @ 230v so just over.

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