Can a TeSys T overload relay be installed on a type S starter in the field?
TeSys T Motor Management Controller
The NEMA type S starters with melting alloy, bimetal, or solid state overloads use a different backplate, as well as different bus, from the starters with TeSys T overloads.
The backplate and bus are not sold separetly.
As such the TeSys T cannot be retrofitted to an existing starter, a new starter with TeSys T overload installed from the factory will need to be ordered.