The Econosub is typically a miniature substation where the customer requires an oil ring main unit (RMU). The housing is 1260mm in height compared to the SF6 ring main unit enclosure of 1500mm in height.  Each econo miniature substation is designed and custom made and a full range of optional accessories are available to ensure that each and every individual customer’s requirements are met.

All our miniature substations carry the SABS mark.