© 2015 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com 31
Rev. Date 090415
Low Voltage Drive (shown in diagrams below):
This fan has broad range input power which
allows it to accept various input powers
within the ranges described below.
Components:
A - RJ45 Jack
For Single Phase:
3.1.2A :Connect the wires
to the appropriate
terminals as pictured in
the diagram to the right.
Model 550
Low Voltage:
120-277VAC (Typical Voltages:
120, 240, 277)
Model 780
Low Voltage:
208-277VAC (Typical Voltages: 240, 277)
For Three Phase:
3.1.2B :Connect the wires
to the appropriate
terminals as pictured in
the diagram to the right.
Model 550
Low Voltage:
208-240VAC (Typical Voltages:
208, 240)
Model 780
Low Voltage:
208-240VAC (Typical Votages:
208, 240)
WARNING: Keep hands away from
components.
CAUTION: RISK OF ELECTRIC SHOCK. The
bus capacitors discharge to a level below
50V DC in 1 minute.
3.1 Safety Cable & Electrical Installation (3 of 4)
A
A
Ring Terminals
Motor Cable: #8 Ring Terminal
12-10 gauge.
Incoming Power: #8 Ring
Terminal 12-10 or 16-14 gauge
depending upon incoming wire
gauge.
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