I-1
Danger
Mandatory
・
When using the inverter without the front cover, be sure to place the inverter unit inside a
cabinet. If they are used outside the cabinet, it may cause electric shock.
Be grounded
・
Be sure to ground every unit. If not, it may cause electric shock or fire on the occasion of
failure, short-circuit or electric leak.
9. 1 Selection of wiring equipment
Wire size
AWG
（
cross-section[mm
2
]
）
Voltage
class
Applicable
motor
[kW]
Inverter model
Main circuit(*1)
DC reactor
(optional)
Braking resistor/
Braking
unit(optional)
Earth cable
18.5
VFP7-2185P
4(22)
8(8)
22
VFP7-2220P
2(38)
2(38)
4(22)
30
VFP7-2300P
2/0(60)
6(14)
37
VFP7-2370P
2/0(60)
4/0(100)
2(38)
45
VFP7-2450P
4/0(100)
2/0(60)
55
VFP7-2550P
75
VFP7-2750P
300(150)
90
VFP7-2900P
300(150)
400(200)
200V
class
110
VFP7-2110KP
400(200)
300
×
2
(150
×
2)
2(38)
4/0(100)
18.5
VFP7-4185P
8(8)
8(8)
22
VFP7-4220P
6(14)
30
VFP7-4300P
6(14)
4(22)
6(14)
37
VFP7-4370P
4(22)
10(5.5)
45
VFP7-4450P
2(38)
55
VFP7-4550P
2(38)
2/0(60)
6(14)
4(22)
75
VFP7-4750P
4/0(100)
90
VFP7-4900P
4(22)
110
VFP7-4110KP
132
VFP7-4132KP
4/0(100)
2/0(60)
160
VFP7-4160KP
300(150)
300(150)
2(38)
200
VFP7-4200KP
400
(100
×
2)
220
VFP7-4220KP
400(200)
300
×
2
(150
×
2)
4/0(100) or
2
×
2(38
×
2)
4/0(100)
280
VFP7-4280KP
400V
class
315
VFP7-4315KP
300
×
2
(150
×
2)
400
×
2
(200
×
2)
4/0(100) or
2/0(60
×
2)
300
(150)
(*1): Indicates wire sizes of input terminals R, S, T and output terminals U, V, W. Wiring distance is supposed to
be 30 m at maximum.
(*2): Cable sizes in this table is in case of 75 degree copper wire.
(*3): For the control circuit, use shielded wires whose size (cross-section) is 0.75 mm
2
or more.
(*4): For the earth cable, use wires larger than the specified ones in size (cross-section).
(*5): Do not connect more than two wires to a terminal block (except for terminal blocks of 2900, 2110K, 4160K
to 4315K and PA terminals of models that have only one PA terminal). If wiring with more than two wires is
needed, set a external relay terminal.
9. Selection of peripheral devices
