mhanson
Member
- Location
- Redwood City, CA
- Occupation
- General Journeyman Electrician
Good Day All,
Looking for thoughts on a tripping 125amp residential sub feed.
Sub panel located in laundry room, fed with Aluminum SER Cable from the 200amp Meter/Main panel
Home Owners claim that the 125amp breaker trips when the dryer reaches the third consecutive load.
the 240v 30amp dryer branch circuit is fed from the 125amp sub panel and does not trip.
additional loads in this sub panel include the typical general purpose lights and plugs, kitchen microwave, dishwasher small appliance branch circuits, etc...
Nothing stands out as unusual. I asked the home owners to run several appliances simultaneously, including the dryer and was only able to read about 45amps on B phase, 25amps on A phase, with no sign of trouble.
Appreciate your comments.
Thank You,
Michael Hanson
California Journeyman Electrician.
Looking for thoughts on a tripping 125amp residential sub feed.
Sub panel located in laundry room, fed with Aluminum SER Cable from the 200amp Meter/Main panel
Home Owners claim that the 125amp breaker trips when the dryer reaches the third consecutive load.
the 240v 30amp dryer branch circuit is fed from the 125amp sub panel and does not trip.
additional loads in this sub panel include the typical general purpose lights and plugs, kitchen microwave, dishwasher small appliance branch circuits, etc...
Nothing stands out as unusual. I asked the home owners to run several appliances simultaneously, including the dryer and was only able to read about 45amps on B phase, 25amps on A phase, with no sign of trouble.
Appreciate your comments.
Thank You,
Michael Hanson
California Journeyman Electrician.