Caution As To Peripheral Devices; Caution As To The Protection Of Motors From Overload - Toshiba TOSVERT VF-PS1 Instruction Manual

9.2.3 Caution as to peripheral devices

When installing a no-fuse circuit breaker or a fuse box on the primary side of the inverter, use UL-certified one.
The UL certification test on this inverter was conducted under the power supply short-circuit current* conditions
shown in Table 4 (*: current that flows in the event of a short-circuit in the power supply). Note that power supply
short-circuit currents vary depending on the capacity of the motor used.
Input voltage Applicable motor
(V) (kW)
1.5~90
110,132
600
160~315
400~630
Applicable
motor
Inverter model
HP KW
VFPS1-5022PM
3 2.2
VFPS1-5040PM
5 4
VFPS1-5055PM
7.5 5.5
VFPS1-5075PM
10 7.5
VFPS1-6150PL
15 11
VFPS1-6185PL
20 15
VFPS1-6220PL
25 18.5
VFPS1-6300PL
30 22
VFPS1-6370PL
40 30
VFPS1-6450PL
50 37
VFPS1-6550PL
60 45
VFPS1-6750PL
75 55
VFPS1-6900PL
100 75
VFPS1-6110KPC
125 90
VFPS1-6132KPC
150 110
VFPS1-6200KPC
200 160
VFPS1-6250KPC
250 185
VFPS1-6315KPC
350 250
VFPS1-6400KPC
450 315
VFPS1-6500KPC
500 400
VFPS1-6630KPC
700 500
*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 4 Power supply short-circuit current and maximum input voltage
Suitable for use on a circuit capable of delivering not more than 22,000 rms
symmetrical amperes in below, 600 volts maximum.
Suitable for use on a circuit capable of delivering not more than 28,000 rms
symmetrical amperes in below, 600 volts maximum.
Suitable for use on a circuit capable of delivering not more than 35,000 rms
symmetrical amperes in below, 600 volts maximum.
Suitable for use on a circuit capable of delivering not more than 42,000 rms
symmetrical amperes in below, 600 volts maximum.
Table 5 AIC, Fuse and Wire sizes
UL AIC (A)
output current (Interrupting
(A) *1 capacity)
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
528 100000
672 100000
I-5
Power supply short-circuit current (A)
Input wire
UL-fuse 600V class
sizes of
and current
power circuit
(A)
*2
Class J 15A max AWG14
Class J 25A max AWG14
Class J 30A max AWG12
Class J 35A max AWG10
Class J 35A max AWG8
Class J 45A max AWG8
Class J 60A max AWG6
Class J 60A max AWG4
Class J 90A max AWG3
Class J 110A max AWG2
Class J 125A max AWG2
Class J 150A max AWG1/0
Class J 200A max AWG2/0
Class J 200A max AWG2/0
Class J 200A max AWG3/0
Class J 300A max 250MCM
Class J 400A max 2X250MCM
Class J 500A max 2X350MCM
Class J 2x300A max 3X300MCM
Class J 2x400A max 2X(2X300MCM) 4X300MCM
Class J 2x500A max 2X(2X400MCM) 4X400MCM
E6581531
Output wire
sizes of Earth
power circuit *2
*2
AWG14 AWG14
AWG14 AWG14
AWG14 AWG14
AWG14 AWG12
AWG10
AWG8
AWG8 AWG10
AWG6 AWG10
AWG4 AWG10
AWG3 AWG8
AWG8
AWG2
AWG2 AWG8
AWG1/0 AWG6
AWG2/0 AWG6
AWG6
AWG2/0
AWG3/0 AWG2
250MCM AWG2
2X250MCM AWG1
AWG2/0
2X350MCM
AWG3/0
3X300MCM
AWG4/0
AWG4/0
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