The contact unit is mounted in a plastic housing just run high voltage devices up to 5000 V AC and 7000 V DC. The HV-connection-cables for contacting the test-system have a length of 2 meters.

1 safety socket (schuko), installed in the top cover:

• 1. supply line: HV-1 and ISO-1 -- connected to L
• 2. supply line: HV-1 and ISO-1 -- connected to N
• 3. supply line: HV-2, ISO-2 and PE-1 -- connected to PE