Permanent　magnetic　actuators　(PMAs)　have　been　widely　used　in　medium-voltage　vacuum　circuit　breakers　(VCBs)　due　to　their　high　reliability　and　controllability.　However,　a　conventional　bistable　PMA　cannot　be　adopted　in　power　equipment　for　the　transmission　voltage　level　such　as　126　kV　VCBs　directly　because　of　its　low-velocity　characteristics.　The　objective　of　this　paper　is　to　propose　a　multimagnetic　circuit　PMA　to　satisfy　the　high-velocity　requirements　for　126　kV　VCBs.　The　novel　PMA　is　a　bistable　and　axisymmetric　structure,　including　holding　and　driving　components　whose　magnetic　circuits　are　separated.　Air　gaps　are　specifically　designed　in　the　magnetic　circuits　to　improve　the　velocity　performance　of　the　novel　PMA.　Both　static　and　dynamic　characteristics　of　the　novel　PMA　model　have　been　calculated　through　finite-element　software　coupled　with　multi-body　dynamics　software.　Furthermore,　a　prototype　of　the　PMA　has　been　developed　according　to　the　calculation　results.　The　experimental　results　on　the　prototype　have　shown　that　the　velocity　characteristics　of　the　PMA　are　able　to　meet　the　requirements　of　a　126　kV　VCB　and　agree　well　with　the　simulation　results.