GOSSEN Prüfadapter AT3-III-E (Z745S) 3-Phase Test Adapter, CEE 16A 5-Pole to 4mm Safety Sockets

Electricians and service technicians working on three-phase installations rely on the GOSSEN AT3-III-E to safely connect their PROFITEST series testers to CEE 16 A sockets. This adapter converts a 5-pole CEE plug into five 4 mm safety sockets (L1, L2, L3, N, PE), enabling comprehensive testing of protective measures according to IEC 60364-6 (DIN VDE 0100-600).

Key specifications

• Adapter type: 3-phase test adapter
• Input connector: CEE 16 A, 5-pole plug
• Output connector: 5x 4 mm safety sockets (L1, L2, L3, N, PE)
• Nominal voltage: 230 V AC (L-N) / 400 V AC (L-L)
• Nominal current: 16 A
• Safety rating: CAT III 600 V / CAT IV 300 V
• Protection class: IP40
• Operating temperature: -10 °C to +50 °C
• Storage temperature: -25 °C to +70 °C
• Housing material: impact-resistant plastic

Why choose it

The AT3-III-E is engineered for compatibility with Gossen Metrawatt PROFITEST series testers, including models M, 0100S-III, and 204. It supports a full range of tests: RCD, loop impedance, insulation resistance, low-resistance, and phase sequence. Its robust construction and high safety ratings ensure reliable performance in demanding electrical environments.

Ideal use cases

• Testing protective measures in three-phase electrical installations
• RCD testing, loop impedance measurement, and insulation resistance testing
• Phase sequence verification and low-resistance measurement
• Periodic inspection and initial verification according to DIN VDE 0100-600

Good to know

The adapter features a 5-pole design for complete three-phase access. It is built with impact-resistant plastic for durability and meets IP40 protection against solid objects. Always follow safety guidelines and use appropriate personal protective equipment when working with live circuits.