INSTALLATION / HANDLING
24
en
http://air.irco.com
ELECTRICAL DATA
−
ALL UNITS IRN 20HP / 15kW
Standard voltage
Low Voltage
High Voltage
208V
230V
380V
400V
460V
Drive motor
Motor enclosure
IP65
Power
20HP / 15kW
Full load current (maximum)
58.3
52.7
31.9
30.3
26.3
Starts per hour (maximum)
20
ELECTRICAL DATA
Control voltage
24VDC
Maximum fuse rating
See note 1, 3
100A
90A
50A
50A
45A
Minimum wire size AWG
(mm
2
)
See note 2, 3
4 (25)
4 (25)
8 (10)
8 (10)
8 (10)
ELECTRICAL DATA
−
ALL UNITS IRN 25HP / 18.5kW
Standard voltage
Low Voltage
High Voltage
208V
230V
380V
400V
460V
Drive motor
Motor enclosure
IP65
Power
25HP / 18.5kW
Full load current (maximum)
73.2A
63.7A
40.2A
38.2A
33.2A
Starts per hour (maximum)
20
ELECTRICAL DATA
Control voltage
24VDC
Maximum fuse rating
See note 1, 3
125A
100A
70A
60A
50A
Minimum wire size AWG
(mm
2
)
See note 2, 3
3 (35)
4 (25)
6 (16)
6 (16)
8 (10)
1. The correct type and rating of line input fuse MUST BE fitted onto
the customers isolator or breaker close to the compressor.
Fast Acting Class
−
J, T or Semiconductor type, Current limiting,
Interrupt Rating
−
200,000 Amps RMS SYM.
Alternate fuse may be used if the time current characteristics are faster
than fuses recommended in this section.
2. PVC/PVC Type Calculated using the following conditions:
i) PVC insulated cable, armoured, copper conductors.
ii) Cable clipped to a wall, in free air.
iii) Ambient temperature of 40
_
C (104
_
F) and relative humidity of 40%.
iv) 20m (65ft) cable run.
v) Volt drop limited to
−
10% during starting,
−
4% during normal
running.
vi) Protected by the fuse listed above.
3. Always apply local electrical codes for sizing cables and fusing.
If there are any deviations from the above, or special regulations
apply, the installation must be planned by a competent, qualified
engineer.
NOTE
All data applies to standard product only.
