Connector System : 4mm Rated Vollage : 1000V DC(IEC) Rated current : 17A / 22A / 30A Test Vollage : 6KV Use Single Core Cable : 1.5,2.5,4.0 ,6.0, 10mm² Degree of Protection : IP67 Safty Class : II Coontact Material :Copper,Tin plated Insulation Material : PC/PPO Flame class : UL94-V0 Ambient temperature range : -40℃~+85℃ Contact resistance : <0.5mΩ