Standard: Conformed to IEC 60269-6 GB/T13539-6 UL4268-18 UL4248-18 Characteristics: Rated voltage:1000Vdc 33ka Rated current:30A UL 32A IEC Applied size:10*38 Temperature range:-30?-+120? Features: 1:Imported engineering plastics,better features of antiflaming,high and low temperature; 2:The metal piece made of pure copper silver plated,and one-shot stamping molding,with lower resistance(=9mO,20?) 3:To ensure tightly contact with the melting core,it's made of strong spring material with higher clamping strength ; 4:Non-slip design for the screws,more reliable connection performance has been greatly enforced; 5:Using multiple locks to eliminate false switching,making absolutely safe protection; 6:Label slot has been added,making more convenient marking; 7:Multipolar connection is allowed(accessory can be chosen),it's convenient to make selection; 8:Design of finger safe; 9:Ergonomic shape and make you feel better.