The operational voltage is 440VAC 50/60Hz. It is an optimal choice for small and medium-sized buildings protection applications. This product embeds a 320A rating thermal-magnetic trip unit (TMD). TMD trip unit provides an adjustable thermal overload protection and a fixed magnetic protection. This 3 poles version (140mm x 255mm x 110mm) comes with a variety of optional functions and accessories. EasyPact CVS400F is compliant with international standards (IEC 60947, CCC, EAC). It can be installed in class II insulation switchboards as it is a class II front face device (IEC 60664-1). This 3 poles version (140mm x 255mm x 110mm) comes with a variety of optional functions and accessories. EasyPact CVS400F is compliant with international standards (IEC 60947, CCC, EAC). It can be installed in class II insulation switchboards as it is a class II front face device (IEC 60664-1).