In addition, all of the AT Series connectors have been developed to be compatible with all other existing standard products industry-wide.AT 2C 16 AWG PIN REC S/R BLK Also available in BoardLock, StructurePlus, HYPERBUSS and PanelMate Series connectors. Amphenol Sine Systems AT Series connectors are designed as an IP68/69K rated mated, high-performance, cost-effective, thermoplastic solution with superior environmental seals, seal retention capabilities and are designed for use with 14-22AWG with size 16 contacts handling up to 13A..