ABB DO890 3BSC690074R1 Digital Output IS 4 ch
Each channel of this module has Intrinsic Safety protection parts, so it can connect directly to process equipment in hazardous areas without extra external devices.
Every channel can deliver a nominal 40 mA current to 300-ohm field loads—like Ex-certified solenoid valves, alarm sounders or indicator lamps. You can set up open and short circuit detection for each channel separately. All four channels are galvanically isolated from each other, as well as from the ModuleBus and power supply. The output stages get their power from the 24V supply connections after conversion.
This module works with TU890 and TU891 Compact MTUs, allowing two-wire connection to process devices without needing additional terminals. TU890 is for Ex applications, while TU891 is for non-Ex use.
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