Mitsubishi Electric FR-A800 Series Instruction Manual page 66
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• 400 V class (440 V input power supply, with a power factor improving AC or DC reactor)
Applicable
inverter model
FR-A840-[]
00023(0.4K)
00038(0.75K)
00052(1.5K)
00083(2.2K)
00126(3.7K)
00170(5.5K)
00250(7.5K)
00310(11K)
00380(15K)
00470(18.5K)
00620(22K)
00770(30K)
00930(37K)
01160(45K)
01800(55K)
02160(75K)
02600(90K)
03250(110K)
03610(132K)
04320(160K)
04810(185K)
05470(220K)
06100(250K)
06830(280K)
*1
For the FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower, HIV cable (600 V grade heat-resistant PVC insulated wire) etc. with a
continuous maximum permissible temperature of 75°C. It assumes that the cables will be used in a surrounding air temperature of 50°C or less
and the wiring distance is 20 m or shorter.
For the FR-A820-03800(75K) or higher, FR-A840-02160(75K) or higher, LMFC (heat resistant flexible cross-linked polyethylene insulated cable)
etc. with a continuous maximum permissible temperature of 90°C or more. It is assumed that the cables will be used in a surrounding air
temperatures of 50°C or less and housed in an enclosure.
*2
For all the 200 V class capacities and FR-A840-01160(45K) or lower, THHW cable with a continuous maximum permissible temperature of 75°C.
It assumes that the cables will be used in a surrounding air temperature of 40°C or less and the wiring distance is 20 m or shorter.
For the FR-A840-01800(55K) or higher, THHN cable with a continuous maximum permissible temperature of 90°C. It is assumed that the cables
will be used in a surrounding air temperatures of 40°C or less and housed in an enclosure.
(For the use in the United States or Canada, refer to "Instructions for UL and cUL" in the Instruction Manual (Startup) or Instruction Manual
(Hardware).)
*3
For the FR-A820-00770(15K) or lower and the FR-A840-01160(45K) or lower, PVC cable with a continuous maximum permissible temperature
of 70°C. It assumes that the cables will be used in a surrounding air temperature of 40°C or less and the wiring distance is 20 m or shorter.
For the FR-A820-00930(18.5K) or higher and the FR-A840-01800(55K) or higher, XLPE cable with a continuous maximum permissible
temperature of 90°C. It is assumed that the cables will be used in a surrounding air temperatures of 40°C or less and housed in an enclosure.
(Selection example mainly for use in Europe.)
*4
Screws for terminals R/L1, S/L2, T/L3, U, V, W, PR, PX, P/+, N/-, and P1, and the screw for earthing (grounding).
The size of screws for terminals PR and PX on FR-A820-00340(5.5K) and FR-A820-00490(7.5K) is indicated in parentheses.
The size of the earthing (grounding) screw on FR-A820-00930(18.5K) or higher and FR-A840-04320(160K) or higher is indicated in parentheses.
The size of the screw for terminal P/+ for option connection on FR-A840-03250(110K) and FR-A840-03610(132K) is indicated in parentheses.
The line voltage drop can be calculated by the following formula:
Line voltage drop [V] =
Use a larger diameter cable when the wiring distance is long or when the voltage drop (torque reduction) in the low speed range
needs to be reduced.
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Crimp terminal
Terminal
Tightening
screw
torque
R/L1, S/
*4
size
(N·m)
L2, T/
L3
M4
1.5
2-4
M4
1.5
2-4
M4
1.5
2-4
M4
1.5
2-4
M4
1.5
2-4
M4
1.5
2-4
M4
1.5
2-4
M5
2.5
5.5-6
M5
2.5
5.5-5
M6
4.4
5.5-6
M6
4.4
8-6
M6
4.4
14-6
M8
7.8
22-8
M8
7.8
22-8
M8
7.8
38-8
M10
26.5
60-10
M10
26.5
60-10
M10 (M12) 26.5
60-10
M10 (M12) 26.5
80-10
M12 (M10) 46
100-12 100-12 100
M12 (M10) 46
150-12 150-12 125
M12 (M10) 46
150-12 150-12 150
M12 (M10) 46
100-12 100-12 2×100 2×100 2×100 60
M12 (M10) 46
100-12 100-12 2×100 2×100 2×125 60
× wire resistance [mΩ/m] × wiring distance [m] × current [A]
search engine
HIV cables, etc. (mm
R/L1,
U, V,
P/+,
U, V, W
S/L2,
W
P1
T/L3
2-4
2
2
2
2-4
2
2
2
2-4
2
2
2
2-4
2
2
2
2-4
2
2
2
2-4
2
2
2
2-4
2
2
3.5
5.5-6
3.5
3.5
3.5
5.5-5
5.5
5.5
5.5
5.5-6
5.5
5.5
8
8-6
8
8
14
14-6
14
14
22
22-8
22
22
22
22-8
22
22
22
38-8
38
38
38
60-10
60
60
60
60-10
60
60
60
60-10
60
60
80
80-10
80
80
80
100
100
125
150
150
150
1000
Cable gauge
2
*1
*2
)
AWG/MCM
PVC cables, etc. (mm
Earthing
R/L1,
R/L1,
U, V,
(grounding)
S/L2,
S/L2,
W
cable
T/L3
T/L3
2
14
14
2.5
2
14
14
2.5
2
14
14
2.5
2
14
14
2.5
2
14
14
2.5
2
14
14
2.5
3.5
12
14
2.5
3.5
12
12
4
5.5
10
10
6
5.5
10
10
6
8
8
8
10
14
6
6
16
14
4
4
25
14
4
4
25
22
2
2
50
22
1/0
1/0
50
22
1/0
1/0
50
22
3/0
3/0
50
22
3/0
3/0
70
38
4/0
4/0
95
38
250
250
120
38
300
300
150
2×4/0 2×4/0 2×95
2×4/0 2×4/0 2×95
2. INSTALLATION AND WIRING
2.5 Main circuit terminals
1
2
*3
)
Earthing
U, V,
(grounding)
W
2
cable
2.5
2.5
2.5
2.5
2.5
2.5
3
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
4
4
4
6
6
6
6
5
10
10
16
16
25
16
25
16
6
50
25
50
25
50
25
7
50
25
70
35
95
50
120
70
8
150
95
2×95
95
2×95
95
9
10
65
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