24
Branch Circuit Protection
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit pro-
tection must be provided in accordance with the National Electrical Code and any additional local codes,
or the equivalent. Drive shall be protected by fuse or inverse-time circuit breaker only, rated 300 V, and
a maximum 300% of full load motor output current rating as noted below.
Input (Power) Wire and Fuse Sizing
Model
Input
Voltage
Fuse/
Breaker
Amps
AWG Copper Wire Sizes, 75 °C Insulation, and Panel to Drive Cable Lengths (in feet)
1
14
12
10
8
6
4
3
2
1
1/0
2/0
SubDrive 15
208/230
15/15
70*/
85
110/
135
185/
225
280/
345
450/
550
710/
865
880/
1075
1160/
1415
1465/
1795
—
—
SubDrive 20
20/20
-
-/85*
115/
140
180/
220
285/
345
450/
550
555/
680
730/
895
925/
1130
—
—
SubDrive 30
25/25
-
-
95*/
115*
145/
180
235/
285
370/
455
460/
560
605/
740
765/
935
—
—
SubDrive 50
40/40
-
-
-
-/115* 150/
185
235/
290
295/
360
385/
470
490/
600
610/
745
735/
895
11
Based on a 3% voltage drop.
** 90 °C Insulation only.
NOTE:
Minimum breaker amps may vary from AIM Manual specifications because of VFD characteristics.
Output (Motor) Wire Sizing
Model
Motor Family
Horsepower
AWG 600 V Copper Wire Sizes, 75 °C Insulation,
and Motor Cable Lengths (in feet)
14
12
10
8
6
4
SubDrive 15
234 514 xxxx
1.5 (1.1 kW)
420
670
1060
-
-
-
SubDrive 20
234 315 xxxx
2.0 (1.5 kW)
320
510
810
1000
-
-
SubDrive 30
234 316 xxxx
3.0 (2.2 kW)
240
390
620
990
-
-
SubDrive 50
234 317 xxxx
5.0 (3.7 kW)
-
230
370
590
920
-
NOTE:
•
The use of 600 V minimum rated motor cable is required.
•
SubDrive models show cable lengths for highest power motor supported by each model. Refer to
the Franklin Electric AIM Manual when using a smaller motor.
•
Maximum allowable wire lengths are measured between the controller and motor.
•
Flat-jacketed submersible motor cable is recommended. All splices in the motor cable must be prop-
erly sealed with watertight shrink tubing. Use extreme caution to avoid damaging or compromising
the motor cable insulation during installation or service.
Содержание SubDrive 15
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