2.15 Power Supply specifications
The following multi-strand copper core wires are given according to 2014 NEC 310.15, Ta‐
ble 310.16 for 40 °C ambient temperature.
If other local conditions prevail, like for example high temperature, the cross section should be
checked and adjusted according to 2014 NEC 110.14©, 220.3, 310.15, Table 310.16, 430.6,
430.22, 430.24 and other local codes.
Dual element time delay fuses are selected according to 2014 NEC 240.6, 430.52 and ta‐
bles 430.52, 430.248 and 430.250.
We strongly suggest using a separate copper conductor for the equipment GROUNDING. NEC
Table 250.122 will point out the ”minimum size”, however, we recommend a ground conductor the
same size as the power leads, if local codes allow.
Rated power supply 208V ±10%, 3-ph, 60Hz
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
Pre-fuse [A]
15
15
20
30
Supply
4xAWG14
4xAWG14
4xAWG12
4xAWG8
Consumption [A]
9.4
11.5
15.2
19.6
Tab. 17 Supply 208V/3/60Hz
Rated power supply 230V ±10%, 3-ph, 60Hz
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
Pre-fuse [A]
15
15
20
25
Supply
4xAWG14
4xAWG14
4xAWG12
4xAWG10
Consumption [A]
10.0
12.3
17.5
21.0
Tab. 18 Supply 230V/3/60Hz
Rated power supply 460V ±10%, 3-ph, 60Hz
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
Pre-fuse [A]
10
10
10
15
Supply
4xAWG14
4xAWG14
4xAWG14
4xAWG14
Consumption [A]
4.3
5.5
7.6
9.4
Tab. 19 Supply 460V/3/60Hz
2
Technical Data
2.15 Power Supply specifications
9_6917 34 USE
Operator Manual Screw Compressor
AIRTOWER 3C–7.5C Tri-Voltage
11
