Caution As To The Protection Of Motors From Overload - Toshiba TOSVERT VF-AS1 Instruction Manual

Applicable
motor
Inverter model
(HP)
2 VFAS1-5015PM
3 VFAS1-5022PM
5 VFAS1-5040PM
7.5 VFAS1-5055PM
10 VFAS1-5075PM
15 VFAS1-6150PL
20 VFAS1-6185PL
25 VFAS1-6220PL
30 VFAS1-6300PL
40 VFAS1-6370PL
50 VFAS1-6450PL
60 VFAS1-6550PL
75 VFAS1-6750PL
100 VFAS1-6900PL
125 VFAS1-6110KPC
150 VFAS1-6132KPC
200 VFAS1-6200KPC
250 VFAS1-6250KPC
350 VFAS1-6315KPC
450 VFAS1-6400KPC
550 VFAS1-6500KPC
700 VFAS1-6630KPC
*1: UL output current is different from unit rating output current.
*2: The cables used must be 75°C copper cables within 40°C ambient temperature.

9.2.4 Caution as to the protection of motors from overload

When using the inverter's thermal protection function to protect the motor from overload, read the instruction
manual included with the inverter carefully and set parameters according to the specifications of the motor used.
When using the inverter to control the operation of multiple motors, install an overload relay for each individual
motor.
Table 5 AIC, Fuse and Wire sizes
UL
AIC (A) UL-fuse 600V class
output current
(Interrupting
(A)
capacity)
*1
2.7 22000
3.9 22000
6.1 22000
9.0 22000
11.0 22000
17.0 22000
22.0 22000
27.0 22000
32.0 22000
41.0 22000
52.0 22000
62.0 22000
77.0 22000
99.0 22000
125 100000
144 100000
192 100000
242 100000
336 100000
412 100000 Class J 2x300A max
528 100000 Class J 2x400A max
672 100000 Class J 2x500A max
I-5
Input wire
sizes of
and current
power circuit
(A)
*2
AWG14
Class J 10A max
AWG14
Class J 10A max
AWG14
Class J 15A max
AWG12
Class J 20A max
AWG10
Class J 25A max
AWG8
Class J 35A max
Class J 45A max AWG8
AWG6
Class J 60A max
AWG4
Class J 60A max
AWG3
Class J 90A max
AWG2
Class J 110A max
AWG2
Class J 125A max
AWG1/0
Class J 150A max
AWG2/0
Class J 200A max
AWG2/0
Class J 200A max
AWG3/0
Class J 200A max
250MCM
Class J 300A max
2X250MCM
Class J 400A max
2X350MCM
Class J 500A max
3X300MCM
2X(2X300MCM)
2X(2X400MCM)
E6581528
Output wire
Earth
sizes of
power circuit *2
*2
AWG14 AWG14
AWG14 AWG14
AWG14 AWG14
AWG14 AWG14
AWG14 AWG12
AWG8 AWG 10
AWG8 AWG 10
AWG6
AWG 10
AWG4
AWG 10
AWG3 AWG 8
AWG2
AWG 8
AWG2
AWG 8
AWG1/0
AWG 6
AWG2/0 AWG 6
AWG2/0
AWG 6
AWG3/0
AWG 2
250MCM
AWG 2
2X250MCM
AWG 1
2X350MCM AWG 2/0
3X300MCM
AWG 3/0
4X300MCM
AWG 4/0
4X400MCM AWG 4/0
9