(2) Closed-Loop Connectors Size
Table
10
Closed Loop Connectors Sizes (JIS C 2805) (For 200 V/400 V classes)
Wire Size
Terminal Screw
Tightening Torque (N
•
m) Closed Loop Connectors
mm
2
AWG
Terminal Screw
Tightening Torque (N
•
m) Closed Loop Connectors
0.5
20
0.75
18
M3.5
M4
0.8 to 1.0
1 2 to 1 4
1.25 to 3.5
1 25 to 4
1.25
16
M4
1.2 to 1.4
1.25 to 4
2
14
M4
1.2 to 1.4
2 to 4
2
14
M5
2.1 to 2.5
2 to 5
3 5
12
M4
1.2 to 1.4
3.5 to 4
3.5
12
M5
2.1 to 2.5
3.5 to 5
5 5
10
M4
1.2 to 1.4
5.5 to 4
5.5
10
M5
2.1 to 2.5
5.5 to 5
8
8
M5
2.1 to 2.5
8 to 5
8
8
M6
3.6 to 5.1
8 to 6
14
6
M6
3.6 to 5.1
14 to 6
22
4
M8
8.2 to 10.2
22 to 8
30/38
3/2
M8
8.2 to 10.2
38 to 8
30/38
3/2
38 to 10
50/60
1/1/0
M10
18 to 23
60 to 10
80
3/0
M10
18 to 23
80 to 10
100
4/0
100 to 10
100
4/0
100 to 12
150
300
M12
31.5 to 39.5
150 to 12
200
400
200 to 12
Determine the wire size for the main circuit so that line voltage drop is within
2 % of the rated voltage. Line voltage drop is calculated as follows:
(If there is a possibility of excessive voltage drop, use a larger wire suitable to
the required length.)
Line voltage drop (V) =
3
p
×
wire resistance (
Ω
/km)
×
wire length (m)
×
cur-
rent (A)
×
10
-3
NOT
E
32