Everything you need to make your application more efficient than ever: Commute easily power sources thanks to a changeover mechanism. Provide a real flexibility to fit with all type of installations thanks to a large choice of Pole units, Handles and auxiliaries.Save space in enclosure thanks to a maximized compactness.Can be used with door handle and local front handle on pole unit.Complying with EAC,UL98,UL508,CSA standards