Ingersoll-Rand IRN 20HP, Operation And Maintenance Manual

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INSTALLATION / HANDLING
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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.