Hands free testing in controlled voltage environment: 5000 Vdc; For CE compliance: not intended for hand held use at voltages above 33 Vrms/70 Vdc, 15A, +122˚F (+50˚C) max. (Model 4899, +302˚F (+150˚C) max.). Accepts 18-22 AWG wire Internal set screw holds wire firmly. Safety collar insulates exposed wire leads. Accepts standard banana plug and fits 0.166in (4.22mm) dia. banana jack One pack of 10