Mitsubishi Electric 800 Series Instruction Manual page 48

2.2
Main circuit terminals
 Cable gauge of main circuit terminals and earth (ground) terminals
Use an appropriate cable gauge to suppress the voltage drop to 2% or less.
If the wiring distance is long between the inverter and motor, the voltage drop in the main circuit will cause the motor torque to decrease especially at a low speed.
The following table indicates a selection example for the wiring length of 20 m.
 LD rating (Pr.570 Multiple rating setting = "1")
• 200 V class (220 V input power supply)
Terminal
Applicable inverter
screw
model
Size

FR-F820-00046(0.75K) to
M4
00105(2.2K)
FR-F820-00167(3.7K) M4
FR-F820-00250(5.5K) M4
FR-F820-00340(7.5K) M5
FR-F820-00490(11K) M5
FR-F820-00630(15K) M5
FR-F820-00770(18.5K) M6
FR-F820-00930(22K) M8 (M6)
FR-F820-01250(30K) M8 (M6)
FR-F820-01540(37K) M8 (M6)
FR-F820-01870(45K) M10 (M8)
FR-F820-02330(55K) M10 (M8)
FR-F820-03160(75K) M12 (M8)
FR-F820-03800(90K) M12 (M8)
FR-F820-04750(110K) M12 (M8)
• 400 V class (440 V input power supply)
Terminal
Applicable inverter
screw
model
Size

FR-F840-00023(0.75K) to
M4
00083(3.7K)
FR-F840-00126(5.5K) M4
FR-F840-00170(7.5K) M4
FR-F840-00250(11K) M4
FR-F840-00310(15K) M5
FR-F840-00380(18.5K) M5
FR-F840-00470(22K) M6
FR-F840-00620(30K) M6
FR-F840-00770(37K) M6
FR-F840-00930(45K) M8
FR-F840-01160(55K) M8
FR-F840-01800(75K) M8
FR-F840-02160(90K) M10
FR-F840-02600(110K) M10
FR-F840-03250(132K) M10 (M12)
FR-F840-03610(160K) M10 (M12)
FR-F840-04320(185K) M12 (M10)
FR-F840-04810(220K) M12 (M10)
FR-F840-05470(250K) M12 (M10)
FR-F840-06100(280K) M12 (M10)
FR-F840-06830(315K) M12 (M10)

For FR-F820-02330(55K) or lower and FR-F840-01160(55K) or lower, this cable gauge is with the continuous maximum permissible temperature of 75°C (HIV cable
(600 V class 2 vinyl-insulated cable), etc.). Assumes that the surrounding air temperature is 50°C or less and the wiring distance is 20 m or less.
For FR-F820-03160(75K) or higher and FR-F840-01800(75K) or higher, this cable gauge is with the continuous maximum permissible temperature of 90°C or higher
(LMFC (heat resistant flexible cross-linked polyethylene insulated cable), etc.). Assumes that the surrounding air temperature is 50°C or less and the wiring is in-
enclosure.

For all the 200 V class capacities and FR-F840-00930(45K) or lower, this cable gauge is with the continuous maximum permissible temperature of 75°C (THHW cable).
This is assumes a surrounding air temperature of 40°C or less and wiring distance of 20 m or less.
For FR-F840-01160(55K) or higher, this cable gauge is with continuous maximum permissible temperature of 90°C (THHN cable). This assumes a surrounding air
temperature of 40°C or lower and in-enclosure wiring. (For the use in the United States or Canada, refer to

For FR-F820-00770(18.5K) or lower and FR-F840-00930(45K) or lower, the cable gauge is with the continuous maximum permissible temperature of 70°C (PVC cable).
This assumes a surrounding air temperature of 40°C or less and wiring distance of 20 m or less.
For FR-F820-00930(22K) or higher and FR-F840-01160(55K) or higher, this cable gauge is with continuous maximum permissible temperature of 90°C (XLPE cable).
This assumes a surrounding air temperature of 40°C and in-enclosure wiring. (Selection example for use mainly in Europe.)

The terminal screw size indicates the size of the terminal screw for R/L1, S/L2, T/L3, U, V, W, P/+, N/-, P1, P3, and the screw for earthing (grounding).
The screw size for earthing (grounding) of FR-F820-00930(22K) or higher is indicated in parentheses.
The screw size for P/+ terminal for connecting an option to FR-F840-03250(132K) or FR-F840-03610(160K) is indicated in parentheses.
The screw size for earthing (grounding) of FR-F840-04320(185K) or higher is indicated in parenthesis.
Crimp terminal
Tightening
R/L1, R/L1,
torque N•m
S/L2, U, V, W S/L2,
T/L3 T/L3
1.5 2-4 2-4 2
1.5 5.5-4 5.5-4 3.5
1.5 5.5-4 5.5-4 5.5
2.5 5.5-5 5.5-5 14
2.5 14-5 14-5 14
2.5 22-5 22-5 22
4.4 38-6 22-6 38
7.8 38-8 38-8 38
7.8 60-8 60-8 60
7.8 80-8 60-8 80
26.5 100-10 100-10 100
26.5 100-10 100-10 100
46 150-12 150-12 125
46 150-12 150-12 150
46 150-12 150-12 150
Crimp terminal
Tightening
R/L1, R/L1,
torque N•m
S/L2, U, V, W S/L2,
T/L3 T/L3
1.5 2-4 2-4 2
1.5 2-4 2-4 2
1.5 5.5-4 5.5-4 3.5
1.5 5.5-4 5.5-4 5.5
2.5 8-5 5.5-5 8
2.5 14-5 8-5 14
4.4 14-6 14-6 14
4.4 22-6 22-6 22
4.4 22-6 22-6 22
7.8 38-8 38-8 38
7.8 60-8 60-8 60
7.8 60-8 60-8 60
26.5 60-10 60-10 60
26.5 80-10 80-10 80
26.5 100-10 100-10 100
26.5 150-10 150-10 125
46 150-12 150-12 150
46 100-12 100-12 2×100
46 100-12 100-12 2×100
46 150-12 150-12 2×125
46 150-12 150-12 2×150
Cable gauge
2
AWG/MCM
HIV cables, etc. (mm )

Earthing R/L1,
P/+,
U, V, W (grounding) S/L2,
P1
cable T/L3
2 2 2 14
3.5 3.5 3.5 12
5.5 5.5 5.5 10
5.5 14 5.5 6
14 14 8 6
22 22 14 4
22 38 14 2
38 38 22 2
60 60 22 1/0
60 80 22 3/0
100 100 38 4/0
100 100 38 4/0
125 125 38 250
150 150 38 2×4/0
150 2×100 60 2×4/0
Cable gauge
2
AWG/MCM
HIV cables, etc. (mm )

Earthing R/L1,
P/+,
U, V, W (grounding) S/L2,
P1
cable T/L3
2 2 2 14
2 3.5 3.5 12
3.5 3.5 3.5 12
5.5 5.5 5.5 10
5.5 8 5.5 8
8 14 8 6
14 22 14 6
22 22 14 4
22 22 14 4
38 38 22 1
60 60 22 1/0
60 60 22 1/0
60 80 22 1/0
80 80 22 3/0
100 100 38 4/0
125 150 38 250
150 150 38 300
2×100 2×100 60 2×4/0
2×100 2×125 60 2×4/0
2×125 2×125 60 2×250
2×150 2×150 60 2×300
page
Main circuit terminals
PVC cables, etc. (mm

R/L1, Earthing
U, V, W S/L2, U, V, W (grounding)
T/L3 cable
14 2.5 2.5 2.5
12 4 4 4
10 6 6 6
10 16 6 16
6 16 16 16
4 25 25 16
4 35 25 25
2 35 35 25
1/0 50 50 25
1/0 70 70 35
4/0 95 95 50
4/0 95 95 50
250 120 120 ―
2×4/0 150 150 ―
2×4/0 2×95 2×95 ―
PVC cables, etc. (mm

R/L1, Earthing
U, V, W S/L2, U, V, W (grounding)
T/L3 cable
14 2.5 2.5 2.5
14 2.5 2.5 4
12 4 4 4
10 6 6 10
10 10 6 10
8 16 10 16
6 16 16 16
4 25 25 16
4 25 25 16
2 50 50 25
1/0 50 50 25
1/0 50 50 25
1/0 50 50 25
3/0 70 70 35
4/0 95 95 50
250 120 120 70
300 150 150 95
2×4/0 2×95 2×95 95
2×4/0 2×95 2×95 95
2×250 2×120 2×120 120
2×300 2×150 2×150 150
21.)
WIRING
2
)

2
)

7