A subsea wiring apparatus includes a housing having a cavity extending from a first end to a second end. The apparatus also includes an electrical connector arranged within the cavity, the electrical connector receiving at least one conductor. The apparatus further includes a separator extending at least partially into the cavity, wherein the separator receives the at least one conductor and directs the at least one conductor into a passage. The apparatus also includes an isolating material within the cavity, the isolating material extending from the first end to the second end, wherein the isolating material surrounds at least a portion of the conductor to block fluid communication with the conductor.