These main contact sets are electrical replacement contacts or repair kits for FUJI SC-N 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 FUJI SC-N series contactor:
2NC0T-CK used for FUJI SC-N1 contactor
2NC1Q-CK used for FUJI SC-N2 contactor
2NC2H-CK used for FUJI SC-N3 contactor
2NC2T-CK used for FUJI SC-N4 contactor
2NC3F-CK used for FUJI SC-N5 contactor
2NC3H-CK used for FUJI SC-N6 contactor
2NC4F-CK used for FUJI SC-N7 contactor
2NC4Q-CK used for FUJI SC-N8 contactor
2NC4H-CK used for FUJI SC-N10 contactor
2NC5F-CK used for FUJI SC-N11 contactor
2NC5H-CK used for FUJI SC-N12 contactor