ABB DO820 3BSE008514R1 RELAY 24-250V

ABB DO820 3BSE008514R1 Digital Output Relay Module 

Description

The S900 components are based on a passive backplanesuitable for mounting on a DIN rail or directly in a sub-distribution board. The passive backplane includes internal buscommunication, terminals for field circuits, communication,and power supply. The function modules are plugged into thebackplane in their appropriate slots. The redundant backplanehas two slots for power supply units, two slots for communication interfaces, and 16 slots for function modules. Digitalfunction modules have up to 8 channels, analog modules upto four. Therefore, when using a redundant backplane, 128digital or 64 analog channels can be connected per station.In the case of the S and B series, up to ten S900 stations canbe connected on a single fieldbus line. 

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