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1
.5 How to Use the Main Circuit Terminals
1
.5.1 Cables, wiring lengths, crimping terminals, etc.
The following selection example assumes the wiring length of 20m (65.62feet).
1) FR-S520-0.1K to 3.7K (-R) (-C)
FR-S520-0.1K to 3.7K-NA
Cables
PVC
Insulated
Cables
Crimping
Terminals
mm
2
AWG
mm
2
Applicable
Inverter
Model
Terminal
Screw
Size
Ti
g
htenin
g
Torque
N
m
R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W R, S, T U, V, W
FR-S520-0.1K
to 0.75K
M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5
FR-S520-
1.5K, 2.2K
M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5
FR-S520-3.7K
M4 1.5 5.5-4 5.5-4 3.5 3.5 12 12 4 2.5
2) FR-S540-0.4K to 3.7K (-R)
FR-S540-0.4K to 3.7K-NA (R)
FR-S540-0.4K to 3.7K-EC (R)
Cables
PVC
Insulated
Cables
Crimping
Terminals
mm
2
AWG
mm
2
Applicable
Inverter
Model
Terminal
Screw
Size
Ti
g
htenin
g
Torque
N
m
R, S, T
<L
1
, L
2
,
L
3
>
U, V, W
R, S, T
<L
1
, L
2
,
L
3
>
U, V, W
R, S, T
<L
1
, L
2
,
L
3
>
U, V, W
R, S, T
<L
1
, L
2
,
L
3
>
U, V, W
FR-S540-0.4K
to 3.7K
M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5
3) FR-S520S-0.1K to 1.5K (-R)
FR-S520S-0.2K to 1.5K-EC (R)
Cables
PVC
Insulated
Cables
Crimping
Terminals
mm
2
AWG
mm
2
Applicable
Inverter
Model
Terminal
Screw
Size
Ti
g
htenin
g
Torque
N
m
R, S
<L
1
, N>
U, V, W
R, S
<L
1
, N>
U, V, W
R, S
<L
1
, N>
U, V, W
R, S
<L
1
, N>
U, V, W
FR-S520S-
0.1K to 0.75K
M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5
FR-S520S-
1.5K
M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5
4) FR-S510W-0.1K to 0.75K (-R)
FR-S510W-0.1K to 0.75K-NA
Cables
PVC
Insulated
Cables
Crimping
Terminals
mm
2
AWG
mm
2
Applicable
Inverter
Model
Terminal
Screw
Size
Ti
g
htenin
g
Torque
N
m
R, S U, V, W R, S U, V, W R, S U, V, W
R, S
<L
1
, N>
U, V, W
FR-S510W-
0.1K to 0.4K
M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5
FR-S510W-
0.75K
M4 1.5 5.5-4 2-4 3.5 2 12 14 4 2.5