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Power Supply and Wiring
The unit is completely wired internally at the
factory according to general rule of electrical
technology, but local rules, if they are required,
should be complied with.
1. Power supply
Power source must fulfill the following
conditions:
• The working voltage should be higher than
90% and lower than 110% of the rated
voltage marked on the name plate.
• The starting voltage should be higher than
85% of the rated voltage marked on the
name plate.
2. Wiring
After the confirmation of the above conditions, prepare the wiring as follows:
• Use the power supply cord(Rubber
insulation, type Ho7RNF approved by HAR
or SAA) suitable for the product's
electriccal capacity.
• Provide a recognized circuit breaker as
below between power source and unit.
A disconnection device to adequately
disconnect all supply lines must be fitted.
(for service operations)
• Wiring Specification:
Conductor
3P 3W 220V
72k / 80k
93k / 100k
72k / 80k
93k / 100k
3P 4W 380V
8.0mm
2
5.5mm
14.0mm
2
8.0mm
22.0mm
2
14.0mm
30.0mm
2
14.0mm
Power source voltage
working voltage
Starting voltage
• The screws which fasten the wiring in the
casing of electrical fittings are liable to
come loose from vibrations to which the
unit is subjected during the course of
transportation. Check them and make sure
that they are all tightly fastened.
(If they are loose, it could give rise to burn-
out of the wires.)
• See to it that the starting voltage is
maintained at more than 90 percent of the
rated voltage marked on the name plate.
• The following troubles would be caused by
voltage drop-down.
Vibration of a magnetic switch, damage on
2
the contact point there of, fuse breaking,
disturbance to the normal function of a
2
overload protection device.
2
• Circuit Breaker Capacity:
Conductor
2
72k / 80k
93k / 100k
72k / 80k
93k / 100k
Installation of Unit
Voltage
Starting point
Time
3P 3W 220V
3P 4W 380V
50A
50A
100A
125A
Installation Manual 15
30A
40A
50A
75A
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