View the thread, titled "3 Phase Motor Question ??" which is posted in Commercial Electrical Advice on Electricians Forums.

Just to give you an idea of fusing here- ( no mcb will be big enough for this task) a standard starting duty 3ph 55KW motor would require

DOL - 160amp HRC fuses (unlikely you will have DOL as an option though due to supply limitations)
Assisted start - 100amp HRC fuses.

Note - MCCB's are also an option.

Your whole mains system will most likely require upgrading and usually either a busbar set-up or MCCB power board option are the ways to go - both needing experience to weigh up and install.
 

Reply to the thread, titled "3 Phase Motor Question ??" which is posted in Commercial Electrical Advice on Electricians Forums.

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Daily, weekly or monthly email

Back
Top