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I have a smart and brown M mk2 lathe with suds pump and a Boxford vm30 milling machine with suds pump each running teco inverters..

Yes sorry wylex. Thank you for the link.. I use 2x 3 phase machines each has a 3 phase pump attached. So 4x 3phase motors running in total. I have no idea how much power they use but the original electrician had all the information on the machines so maybe he thought 50a was correct...??

It's still a council house. The council contractor say they will only fit a 32a as 50a is unavailable for the new consumer unit. I assume the original electrician took startup into account when he fitted the 50a..

As said I'm not an electrician and had it all planned and installed by an electrician in 2016....it powers my lathe and milling machine which both run 2x 3phase inverters each..so 4 in total.

They insist that 50a are not available for the new fuse box...it used afdd-rcbo...by waylex

I'm having my council house rewired. I have an existing out building with high demand appliances running on 3 phase inverters. It has its own fuse board with a 50a main circuit breakers running to a 50a smaller breakers in the main house fuse box. They now tell me that they that they cannot get...