Switching repeater, Screw terminal, Number of channels: 2, Auxiliary power: 24 V DC, Output per channel: 2 NO – signal relay, Zone 2 r-stahl.com/en/us/products/automation-interfaces-and-solutions/isolators/ex-i-isolators/switching-repeater-series-9170-43246/203145-43310/?hq=9170%2F21-11-11S