hardware to fit chassis mounted plugs and sockets. All of these plugs and sockets have a contact resistance of ;10m , and an insulation resistance of >10 ;sup>3 ;/sup>M . Their operating temperature is -40°C +70°C. IEC Connector Retaining Clamp Kit. Stainless steel wire retaining clip prevents inadvertent disconnection of power during use Not suitable for use with chassis plug filters or moulded cordsets