Mitsubishi Electric FR-A820-00046 Instruction Manual page 35

Installation and wiring
NOTES The above shows a selection example for the ND rating. For selecting the SLD rating, LD rating, or
HD rating, refer to the Technical News (MF-X-121) contained in the enclosed CD-ROM.
When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic
contactor according to the inverter model, and select cables and reactors according to the motor
output.
When the breaker on the inverter's input side trips, check for the wiring fault (short circuit), dam-
age to internal parts of the inverter etc. The cause of the trip must be identified and removed
before turning ON the power of the breaker.
400 V class
Motor
output
[kW]
0.4
0.75
1.5
2.2
3.7
5.5
7.5
11
15
18.5
22
30
37
45
55
75
90
110
132
160
185
220
250
280
Tab. 2-3:
Assumes the use of a Mitsubishi 4-pole standard motor with the power supply voltage of 400 V AC
50 Hz.
FR-A800
Molded case circuit breaker (MCCB) or
earth leakage circuit breaker (ELB)
Applicable inverter
model
Power factor improving (AC or DC)
FR-A840-00023(0.4K)
FR-A840-00038(0.75K)
FR-A840-00052(1.5K)
FR-A840-00083(2.2K)
FR-A840-00126(3.7K)
FR-A840-00170(5.5K)
FR-A840-00250(7.5K)
FR-A840-00310(11K)
FR-A840-00380(15K)
FR-A840-00470(18.5K)
FR-A840-00620(22K)
FR-A840-00770(30K)
FR-A840-00930(37K)
FR-A840-01160(45K)
FR-A840-01800(55K)
FR-A840-02160(75K)
FR-A840-02600(90K)
FR-A840-03250(110K)
FR-A840-03610(132K)
FR-A840-04320(160K)
FR-A840-04810(185K)
FR-A840-05470(220K)
FR-A840-06100(250K)
FR-A840-06830(280K)
Breakers and contactors (400 V class)
(NF, NV type)
reactor
Without With
5A 5A
5A 5A
10A 10A
10A 10A
20A 15A
30A 20A
30A 30A
50A 40A
60A 50A
75A 60A
100A 75A
125A 100A
150A 125A
175A 150A
200A 175A
⎯
225A
⎯
225A
⎯
225A
⎯
400A
⎯
400A
⎯
400A
⎯
500A
⎯
600A
⎯
600A
Peripheral devices
Input-side magnetic contactor
Power factor improving (AC or DC)
reactor
Without With
S-T10 S-T10
S-T10 S-T10
S-T10 S-T10
S-T10 S-T10
S-T10 S-T10
S-T21 S-T12
S-T21 S-NT21
S-T21 S-T21
S-N25 S-T21
S-N25 S-N25
S-N35 S-N25
S-N50 S-N50
S-N65 S-N50
S-N80 S-N65
S-N80 S-N80
⎯
S-N95
⎯
S-N150
⎯
S-N180
⎯
S-N220
⎯
S-N300
⎯
S-N300
⎯
S-N400
⎯
S-N600
⎯
S-N600
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