Page 12
Section 6
(continued)
For Frame Size 4 Controllers:
Single Phase Connection
For small drives with diode rectifier front end it is possible to run a three phase output with a single phase input.
Only part of the three phase input bridge is used. Ripple current becomes 120 Hz rather than 360. This places a
greater demand on the DC filter components (capacitor bank and DC choke). The result is that the drive must be
derated to 50% current.
If single phase input power is used the Motor Overload switches must be set to 50% or lower.
Supply Voltage
Frame Size
Model Number
Nominal HP Rating
3 Phase Input
1 Phase Input
208/230
1
SPD20050
5.0
2.0
SPD20050F
2
SPD20075
7.5
3.0
SPD20075F
SPD20100
10.0
5.0
SPD20100F
3
SPD20150
15.0
7.5
SPD20150F
SPD20200
20.0
10.0
SPD20200F
4
SPD20250
25.0
12.0
SPD20250F
SPD20300
30.0
15.0
SPD20300F
460
1
SPD40050
5.0
SPD40050F
SPD40075
7.5
SPD40075F
2
SPD40100
10.0
SPD40100F
SPD40150
15.0
SPD40150F
SPD40200
20.0
SPD40200F
3
SPD40250
25.0
SPD40250F
SPD40300
30.0
SPD40300F
POWER SUPPLY AND WIRING
