ATP Series™ Connectors Amphenol Sine Systems ATP Series™ Connectors are designed as an IP68/69K rated (mated), high-performance, thermoplastic solution with superior environmental seals, seal retention capabilities, and are designed for use with 10-14AWG with size 12 contacts handling up to 25A. Also available in our BoardLock™, StructurePlus™, HYPERBUS™, and PanelMate™ Series of connectors. In addition, all of Amphenol's ATP Series™ connectors have been developed to be completely compatible with other existing standard products industry-wide.