Adapter for active and passive testing of three-phase devices 16/32 A. The safety tester is intended in conjunction with SECUTEST test devices for testing 3-phase devices after repairs and for recurring tests (DIN VDE 0701-0702). It allows tests to be carried out fully automatically or manually in accordance with the menu-guided test sequences of the test devices, with the test results being transferred to the test devices and evaluated via the SECUTEST S2N.., SIII+, PRO / SECULIFE ST.. test devices. DIN VDE tests without mains operation - protective conductor resistance, insulation resistance, equivalent leakage current DIN VDE tests with mains operation - differential current, touch current Equipment: 5-pin CEE 32 A (max. 40 A), CEE 16 A and 1-phase Schuko socket Dimensions: 285 x 220 x 128 mm, weight: approx. 4.15 kg.