COMBI519

COMBI519 performs testing of electrical systems according to IEC/EN 61557-1, including continuity testing of protective conductors, insulation resistance (with PI and DAR calculations), overall grounding resistance, RCD type B and A, tripping time and current, line/short-circuit impedance with short-circuit potential calculation, phase sequence, and compliance.
The device features an innovative AUTO function: by selecting this and setting only the RCD current value, COMBI519 sequentially performs tests of grounding resistance, RCD trip time, and insulation resistance. After testing, it displays all results with pass/fail indication using simple OK or NOT OK symbols.
Internal memory allows storing measurements and later transferring them to a PC via optical/USB connection.