Tell me about FMU, FTU, and ATU in Susol MCCB.

FTU : Thermal over protection (1In Fixed)

          Magnetic short-circuit protection (10In Fixed)

FMU : Thermal over protection (0.8~1In Adjustable)

          Magnetic short-circuit protection (10In Fixed)

ATU : Thermal over protection (0.8~1In Adjustable)

          Magnetic short-circuit protection (5~10In Adjustable)

For more details : https://www.lselectric.in/ac-switchgear