Manual
118 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014
Appendix A Motor Cable Length Restrictions Tables
PowerFlex 755 Floor Mount
Drives
This section lists motor cable length restrictions, reactors, and available options
for PowerFlex 755 floor mount drives.
7
160
2
24.4
(80)
45.7
(150)
91.4
(300)
121.9
(400)
182.9
(600)
243.8
(800)
1321-3R200-C
50 375
4
24.4
(80)
45.7
(150)
91.4
(300)
106.7
(350)
152.4
(500)
182.9
(600)
50 750
200
2
24.4
(80)
45.7
(150)
91.4
(300)
121.9
(400)
182.9
(600)
243.8
(800)
1321-3RB250-C
50 480
4
24.4
(80)
45.7
(150)
91.4
(300)
106.7
(350)
152.4
(500)
182.9
(600)
50 960
250
2
24.4
(80)
45.7
(150)
91.4
(300)
121.9
(400)
182.9
(600)
243.8
(800)
1321-3RB320-C
50 480
4
24.4
(80)
45.7
(150)
91.4
(300)
106.7
(350)
152.4
(500)
182.9
(600)
50 960
Table 49 - PowerFlex 753 and 755 Wall Mount Drives, 690V Shielded/Unshielded Cable – Meters (Feet) (continued)
Drive Rating No Solution Reactor Only Reactor and
Damping Resistor
Reactor Resistor Available Options
Frame kW kHz 1488V 1850V 1488V 1850V 1488V 1850V Cat. No. Ohms Watts TFA1 TFB2 RWR2 RWC
Table 50 - PowerFlex 755 Floor Mount Drives, 400V Shielded/Unshielded Cable – Meters (Feet)
Drive Rating No Solution Reactor Only Reactor and Damping Resistor Reactor Resistor Available Options
Frame kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts
TFA1
TFB2
RWR2
RWC
8
250
2
24.4
(80)
121.9
(400)
213.4
(700)
304.8
(1000)
45.7
(150)
121.9
(400)
304.8
(1000)
365.8
(1200)
228.6
(750)
365.8
(1200)
365.8
(1200)
365.8
(1200)
1321-3R500-B
20 495
(2)
●
4
24.4
(80)
91.4
(300)
152.4
(500)
182.9
(600)
36.6
(120)
91.4
(300)
167.6
(550)
213.4
(700)
91.4
(300)
182.9
(600)
304.8
(1000)
365.8
(1200)
20 990
(2)
●
315
2
24.4
(80)
121.9
(400)
213.4
(700)
259.1
(850)
45.7
(150)
121.9
(400)
304.8
(1000)
365.8
(1200)
228.6
(750)
365.8
(1200)
365.8
(1200)
365.8
(1200)
1321-3R600-B
20 495
(2)
●
4
24.4
(80)
91.4
(300)
152.4
(500)
182.9
(600)
36.6
(120)
91.4
(300)
167.6
(550)
213.4
(700)
91.4
(300)
182.9
(600)
304.8
(1000)
365.8
(1200)
20 990
(2)
●
355
2
24.4
(80)
121.9
(400)
213.4
(700)
259.1
(850)
45.7
(150)
121.9
(400)
304.8
(1000)
365.8
(1200)
228.6
(750)
304.8
(1000)
365.8
(1200)
365.8
(1200)
1321-3R750-B
20 495
(2)
●
4
24.4
(80)
91.4
(300)
152.4
(500)
182.9
(600)
36.6
(120)
91.4
(300)
167.6
(550)
213.4
(700)
91.4
(300)
182.9
(600)
304.8
(1000)
365.8
(1200)
20 990
(2)
●
400
2
24.4
(80)
91.4
(300)
152.4
(500)
213.4
(700)
36.6
(120)
91.4
(300)
304.8
(1000)
365.8
(1200)
198.1
(650)
274.3
(900)
304.8
(1000)
365.8
(1200)
1321-3R850-B
20 735
(3)
●
4
24.4
(80)
91.4
(300)
137.2
(450)
167.6
(550)
36.6
(120)
91.4
(300)
152.4
(500)
182.9
(600)
76.2
(250)
137.2
(450)
274.3
(900)
365.8
(1200)
20 1470
(3)
●
continued