PowerLok Connectors Amphenol Technical Products International PowerLok™ Connectors utilize Amphenol's RADSOK® technology and are designed with compactness and robustness in mind. The series features low insertion force / high cycle durability with a secondary lock to prevent unintentional loosening of contacts. This cylindrical interconnect solution is suitable for applications up to 1000V, ranging from 70A to 500A. Amphenol PowerLok™ Connectors provide an easy-to-use, cost-effective solution with an IP67 rating when mated. Applications include energy storage, power distribution, and EV/HEV.