15 April 2021
There is no built in Suppressor with diodes or varistor embedded in TeSys U.
The Tesys U principle is fully different with a standard Electro-mechanical contactor with standard coil.
The energy to operate the coil is generated by an electronic converter, then we have a full separation between the coil and the control circuit.
So there is no need for a built in Diode or Suppressor.