This optional module mod. ETH-R includes a Earth Leakage Protection Relay to be used together with the on-board protection relays of Panels GCB-3 and PGP-1. In the last case, only as a leakage current sensing relay. TECHNICAL CHARACTERISTICS: Differential Relay • A-type differential relay, with two adjustable trip times and currents, with toroidal transformer for the cables of the lines to be controlled. • Measure and sensing the TRMS current • Adjustable tripping currents, Idn selectable: 0,03 to 3 A • Adjustable tripping times, selectable: 0.02 to 1 s (INS, SEL) • Two independent programmable relays (C1: alarm, C2: tripping) • Toroid transformer, DIAMETRO 30mm • Display: 3 colored LEDs for ON, alarm and trip • No. 2 output relay contact: 230 Vac, 6A • Test and reset button + 4 programming pushbuttons Test rheostat mod. RCD-1 This table top rheostat, completely included in a painted metal container, allows to simulate an insulation leakage current in the range of 5 to 40 mA @ 3*400 V + N. All terminals are 4 mm safety type. Supply with THEORETICAL – EXPERIMENTAL HANDBOOK
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