This series, similar to the H4 with UL 6703 / IEC 62852 approvals at 1500V DC, enhanced materials to increase performance levels of chemical resistance, ingress protection (IP68 24h/1 m mated), damp heat (2000 hrs), thermal cycle (800 cycles), humidity freeze (60) cycles, and lower contact resistance. A single-pole ranging from 14 AWG to 8 AWG contact per connector and up to 50 amps possible.