Isolating switching amplifier. 1-channel. Ident. no.: 7580028. Relay output (changeover contact). Alarm output (changeover contact). Switchable between: Alarm output or signal doubling. Output mode adjustable (open-circuit/closed current mode). Input circuits monitored for wire break/short circuit (ON/OFF switchable). Complete galvanic isolation. Input reverse-polarity protected. Removable screw terminals. ATEX use in Zone 2, cUL. SIL 2