Based　on　the　principles　of　repulsion　and　attraction　between　electromagnetic　poles　and　the　magnetic　remanence　of　semi-hard　magnetic　alloy　materials,　a　new　intelligent　AC　contactor　design　method　was　proposed　by　a　new　contactor　structure　model　which　has　following　characteristics:　controllable　electromagnetic　counter-force,　remanence　and　double-coil.　The　three　dimensional　dynamic　characteristics　of　the　double-coils　intelligent　AC　contactor　were　tested　and　analyzed　by　using　the　single　camera　vision　technology.　By　analyzing　the　test　results,　the　double-coils　intelligent　AC　contactor　can　realize　closing　more　rapidly,　silently　energy-saving　retention　and　micro　arc　energy　breaking.　©　2016　Chin.　Soc.　for　Elec.　Eng.