The contacting unit ist mounted in a plastic housing and is designed to handle high voltages (up to 5 000 V AC / 7 000 V DC). The supply cables with-high voltage plugs for plugging into the test system are 2 m long.

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

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

3 quick-release terminals, installed in the top cover:

• 1 quick-release terminal black, connected to L
• 1 quick-release terminal black, connected to N
• 1 quick-release terminal red, connected to PE