This SRH3899-6P/12S Slip ring is the small through bore slip ring which has max 6Circuits Mechanical parameters Plastic or AL housing through bore dia:38mm out dia 99mm lead wire length: 250mm(options) Electric performance max 6 Circuits Power: 10/Circuit,15A/circuits, Signal: 2A/Circuits speed:0-250rpm insulation resistance:500MOhm/500V DC Dielectric strength: 500V AC @50HZ 60S Electric noise: � 0.01Ω life: 10million rpm operation temperature: -20°c--+80°c operation humidity: 60%RH @ 40°c contact material:Precious metal IP51 options: ring number. min 2 rings, max 48 rings. IP Grade, IP51 IP54 IP65 IP67 wire length: standard 250mm, customer can define the lenght of the cable. shrink tube protect the wires. Ethernet CAT5e Can bus