These main contact sets are electrical replacement contacts or repair kits for Siemens 3TF series motor starter and contactors.They are packaged at 3poles(3 movable kits and 6 stationary kits plus spring clips and screws.
Here is the part number list of replacement contact kits&repair kits for 3TF series contactor:
3TY7440-0A used for Siemens 3TF44 contactor
3TY7450-0A used for Siemens 3TF45 contactor
3TY7460-0A used for Siemens 3TF46 contactor
3TY7470-0A used for Siemens 3TF47 contactor
3TY7470-0A used for Siemens 3TF48 contactor
3TY7490-0A used for Siemens 3TF49 contactor
3TY7500-0A used for Siemens 3TF50 contactor
3TY7510-0A used for Siemens 3TF51 contactor
3TY7520-0A used for Siemens 3TF52 contactor
3TY7530-0A used for Siemens 3TF53 contactor
3TY7540-0A used for Siemens 3TF54 contactor
3TY7550-0A used for Siemens 3TF55 contactor
3TY7560-0A used for Siemens 3TF56 contactor
3TY7570-0A used for Siemens 3TF57 contactor
