The yellow 3kVA portable tool transformer is for stepping down from 230V UK 13A socket to 110V CTE 16A sockets. The blue 3kVA Step-up transformer is for changing from 110V up to 230V mains level.
Are you wanting to plug one transformer into the other transformer? A socket adaptor may do the same thing, or an isolation transformer 230V in, 230V out.
Answered by: C&M Product Expert
Date published: 2019-08-11