Isolating switching amplifier, 2-channel, Operating voltage 20…30 VDC, Isolating switching amplifier, 2-channel, Line monitoring for wire break / short circuit, PNP transistor output NO, Complete galvanic isolation, Input reverse-polarity protected, Protection class IP67, Connection with M12 male connectors, ATEX, IECEx, CFMUS, TR CU, Installation in zone 2/22