3
029 2085 8400
08. 11. 17. Leaflet Number 671645
Installation and Maintenance
AXUS Swift Circular Long Cased Axial Flow Fans
4.0 Electrical Wiring
4.1 Single Phase Units
4.2 Three Phase Units
Single Speed, 1 phase
D.O.L. Starting, 3 phase (3kW and below)
Single Speed, 3 phase
Speed Control - TRANSFORMER, 1 phase
Speed Control - ELECTRONIC, 3 phase
Star / Delta Starter, 3 phase (4kW and above)
IMPORTANT
For specialist connections not shown always refer
to the wiring diagram supplied with the unit. In
the event of query or uncertainty contact NUAIRE
directly before any connection is made.
X L N
Fan
Unit
NOTE:
Remove Link between
X+L when using
speed control
L N
230V 1 phase 50Hz supply
220V 1 phase 60Hz supply
N
L
X
Fan
unit
L N
230V 1 phase 50Hz supply only
L1
N L2 N N
L
Control
SPCON
460V 3 phase 60Hz supply
380V 3 phase 60Hz supply
400V 3 phase 50Hz supply
L1
L2
L3
STAR
L1 - U1
L2 - V1
L3 - W1
Link W2, U2, V2
U1
V1
W1
W2
U2
V2
L1 L2 L3
400V 3 phase 50Hz supply
380V 3 phase 60Hz supply
460V 3 phase 60Hz supply
Fan
unit
U1
V1
W1
W2
U2
V2
DELTA
L1 - U1 - W2
L2 - V1 - U2
L3 - W1 - V2
Note:
For all D.O.L. (Direct On Line)
operation or Inverter type Speed Control
wire in DELTA
460V 3 phase 60Hz supply
380V 3 phase 60Hz supply
400V 3 phase 50Hz supply
L1 L2 L3
L1
PE/
N/L3
L/L2
W
U
V
400V 3 phase 50Hz supply
380V 3 phase 60Hz supply
460V 3 phase 60Hz supply
3 Phase only
INVERTER SPEED CONTROL
Connections
to motor
3 Phase input
Motor
3 Phase
Notes:
Total Length of motor leads should not exceed 50 metres.
If a screened motor cable is used, maximum length should
be 25 metres. Consult our Technical Department if you
wish to use longer leads.
Inverters are configured to suit specific fans and control
applictions as described on the Customer Order
free of charge.
