Mitsubishi FR-A800

Main circuit terminals
INSTALLATION AND WIRING
41
2
2.5.3 Applicable cables and the wiring length
Select a recommended cable size to ensure that the voltage drop will be 2% or less.
If the wiring distance is long between the inverter and motor, the voltage drop in the main circuit wires 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.
• 200 V class (220 V power reception (with 150% rated current for one minute))
• 400 V class (440 V input power supply (with 150% rated current for one minute))
Applicable
inverter
model
FR-A820-[ ]
Terminal
screw
size

Tightening
torque
N·m
Crimping
terminal
Cable gauge
HIV cables, etc. (mm
2
)
AWG/MCM
PVC cables, etc. (mm
2
)
R/L1,
S/L2,
T/L3
U, V,
W
R/L1,
S/L2,
T/L3
U, V,
W
P/+,
P1
Earthing
(grounding)
cable
R/L1,
S/L2,
T/L3
U, V,
W
R/L1,
S/L2,
T/L3
U, V,
W
Earthing
(grounding)
cable
00046(0.4K) to
00167(2.2K)
M4 1.5 2-4 2-4 2 2 2 2 14 14 2.5 2.5 2.5
00250(3.7K) M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 3.5 12 12 4 4 4
00340(5.5K) M5(M4) 2.5 5.5-5 5.5-5 5.5 5.5 5.5 5.5 10 10 6 6 6
00490(7.5K) M5(M4) 2.5 14-5 8-5 14 8 14 5.5 6 8 16 10 16
00630(11K) M5 2.5 14-5 14-5 14 14 14 8 6 6 16 16 16
00770(15K) M6 4.4 22-6 22-6 22 22 22 14 4 4 25 25 16
00930(18.5K) M8(M6) 7.8 38-8 38-8 38 38 38 14 2 2 35 35 25
01250(22K) M8(M6) 7.8 38-8 38-8 38 38 38 22 2 2 35 35 25
01540(30K) M8(M6) 7.8 60-8 60-8 60 60 60 22 1/0 1/0 50 50 25
01870(37K) M10(M8) 14.7 80-10 80-10 80 80 80 22 3/0 3/0 70 70 35
02330(45K) M10(M8) 14.7 100-10 100-10 100 100 100 38 4/0 4/0 95 95 50
03160(55K) M12(M8) 24.5 100-12 100-12 100 100 100 38 4/0 4/0 95 95 50
03800(75K) M12(M10) 24.5 150-12 150-12 125 125 125 38 250 250 — — —
04750(90K) M12(M10) 24.5 150-12 150-12 150 150 150 38 300 300 — — —
Applicable
inverter
model
FR-A840-[ ]
Terminal
screw
size

Tightening
torque
N·m
Crimping
terminal
Cable gauge
HIV cables, etc. (mm
2
)
AWG/MCM
PVC cables, etc. (mm
2
)
R/L1,
S/L2,
T/L3
U, V,
W
R/L1,
S/L2,
T/L3
U, V,
W
P/+,
P1
Earthing
(grounding)
cable
R/L1,
S/L2,
T/L3
U, V,
W
R/L1,
S/L2,
T/L3
U, V,
W
Earthing
(grounding)
cable
00023(0.4K) to
00126(3.7K)
M4 1.5 2-4 2-4 2 2 2 2 14 14 2.5 2.5 2.5
00170(5.5K) M4 1.5 2-4 2-4 2 2 3.5 3.5 12 14 2.5 2.5 4
00250(7.5K) M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 3.5 12 12 4 4 4
00310(11K) M5 2.5 5.5-5 5.5-5 5.5 5.5 5.5 5.5 10 10 6 6 10
00380(15K) M5 2.5 8-5 8-5 8 8 8 5.5 8 8 10 10 10
00470(18.5K) M6 4.4 14-6 8-6 14 8 14 8 6 8 16 10 16
00620(22K) M6 4.4 14-6 14-6 14 14 22 14 6 6 16 16 16
00770(30K) M6 4.4 22-6 22-6 22 22 22 14 4 4 25 25 16
00930(37K) M8 7.8 22-8 22-8 22 22 22 14 4 4 25 25 16
01160(45K) M8 7.8 38-8 38-8 38 38 38 22 1 2 50 50 25
01800(55K) M8 7.8 60-8 60-8 60 60 60 22 1/0 1/0 50 50 25
02160(75K) M10 14.7 60-10 60-10 60 60 60 22 1/0 1/0 50 50 25
02600(90K) M10 14.7 60-10 60-10 60 60 80 22 3/0 3/0 50 50 25
03250(110K) M10(M12) 14.7 80-10 80-10 80 80 80 38 3/0 3/0 70 70 35
03610(132K) M10(M12) 14.7 100-10 100-10 100 100 100 38 4/0 4/0 95 95 50
04320(160K) M12(M10) 24.5 150-12 150-12 125 150 150 38 250 250 120 120 70
04810(185K) M12(M10) 24.5 150-12 150-12 150 150 150 38 300 300 150 150 95
05470(220K) M12(M10) 46 100-12 100-12 2100 2100 2100 60 24/0 24/0 295 295 95
06100(250K) M12(M10) 46 100-12 100-12 2100 2100 2125 60 24/0 24/0 295 295 95
06830(280K) M12(M10) 46 150-12 150-12 2125 2125 2125 60 2250 2250 2120 2120 120