Auxiliary Power Output - ABB FBVi-2U4-4T User Manual

When wiring triacs, loads can be resistive or inductive. If your load requires more than 24 V or more than
500 mA, a properly sized intermediate relay must be used.

AUXILIARY POWER OUTPUT

FBVi-2U4-4T has one 18 V DC output, for I/O devices that require loop power.
For 3-wire connections return can be through any COM terminal, but it is recommended that Auxiliary
power wiring is through terminal 14, the COM between the two Auxiliary power terminals.
The DC output terminals provide a minimum of 18 V DC, but the load must remain below 60 mA.
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