About WEA 168
The universal two channels interfaces are used as an interface for the convenient operation of installations via conventional push buttons/switches or for reading out technical binary signals.
They also enable the control of LEDs as well as the electronic relay controlling electrothermal valve drives.
Manufacturer: ABB. Type: US/U 2.2 www.ABB.com
|Bus voltage||via bus|
|Power consumptio||< approx. 10 mA|
|Inputs/outputs||2. Individually parameterised as inputs or outputs|
|Permitted cable length||<= 10 m|
|Scanning voltage||20 V DC|
|Input current||0,5 mA|
|Output voltage||5 V DC|
|Output current||max. 2 mA, limited via series resistor of 1.5k|
|Safety||Short-circuit-proof, overload protection, reverse voltage protection|
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