AC-power wiring
CNT-SVX09B-EN 7
Figure 3. Connecting ac-power wires to the module
Use a UL-listed Class 2 power transformer supplying a nominal 24 Vac
(20–30 Vac). The transformer must be sized to provide adequate power to
the Tracer MP503 I/O module (10 VA) and output devices, including
relays, to a maximum of 12 VA per output utilized. The Tracer MP503
may be powered by an existing transformer integral to the controlled
equipment, provided the transformer has adequate power available and
proper grounding is observed.
H
N
24 Vac
transformer
Line
voltage
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