User Manual
EM303A General Purpose Inverter
31
3.2.6
Main Circuit Cable and Terminal Screw Size
See Table 3-3 for the specifications of main circuit cable and terminal screw.
Table 3-3 Main Circuit Cable and Terminal Screw Specifications
Model No.
of Inverter
Terminals
Terminal
Screw
Tightening
Torque
（
N.m
）
Cable
Size
（
mm2
）
Cable
Type
EM303A-0R7G/1R1P-3CB
，
,R,S,T,U,V,W,PB,
M3.5
1.2
～
1.5
1.5
750V
EM303A-1R1G/1R5P-3CB
M3.5
1.2
～
1.5
2.5
EM303A-1R5G/2R2P-3CB
M3.5
1.2
～
1.5
2.5
EM303A-2R2G/3R0P-3CB
M3.5
1.2
～
1.5
4
EM303A-3R0G/4R0P-3CB
M3.5
1.2
～
1.5
4
EM303A-4R0G/5R5P-3CB
M3.5
1.2
～
1.5
4
EM303A-5R5G/7R5P-3CB
M4
1.5
～
2.0
6
EM303A-7R5G/9R0P-3CB
M4
1.5
～
2.0
6
EM303A-9R0G/011P-3CB
M5
3.0
～
4.0
6
EM303A-011G/015P-3CB
M5
3.0
～
4.0
10
EM303A-015G/018P-3CB
M5
3.0
～
4.0
10
EM303A-018G/022P-3C
，
,U,V,W,
R,S,T,
M6
4.0
～
5.0
16
EM303A-022G/030P-3C
M6
4.0
～
5.0
16
EM303A-030G/037P-3C
M6
4.0
～
5.0
25
EM303A-037G/045P-3C
M8
9.0
～
10.0
25
EM303A-045G/055P-3C
M8
9.0
～
10.0
35
EM303A-055G/075P-3C
M10
17.0
～
22.0
35
EM303A-075G/090P-3C
M10
17.0
～
22.0
60
EM303A-090G/110P-3C
M10
17.0
～
22.0
60
EM303A-110G/132P-3C
M10
17.0
～
22.0
90
EM303A-132G/160P-3C
M10
17.0
～
22.0
90
EM303A-160G/185P-3C
M12
31.0
～
39.0
120
EM303A-185G/200P-3C
M12
31.0
～
39.0
180
EM303A-200G/220P-3C
M12
31.0
～
39.0
180
EM303A-220G/250P-3C
M16
45.0
～
55.0
240
EM303A-250G/280P-3C
M16
45.0
～
55.0
270
EM303A-280G/315P-3C
M16
45.0
～
55.0
270
EM303A-315G/355P-3C
2*M16
45.0
～
55.0
2*150
EM303A-355G/400P-3C
2*M16
45.0
～
55.0
2*150
EM303A-400G/450P-3C
2*M16
45.0
～
55.0
2*180
Remarks:
1.
See Table 0-1 and Table 0-2 for the terminals and cable selection of AC 220V input.
2.
Take the voltagedrop into consideration for selecting cable. Generally the voltagedrop
should be
＜
5V and calculated according to following formula:
Voltagedrop=
√
3* Cable resistance ratio (
Ω
/KM)*Cable length (m)*Rated current
(A)*10
-3
3.
If placed in plastic duct, the cable should be uprated by one level.
4.
The cable should be connected to the applicable cable and wiring terminal.
5.
The size of grounding cable should be the same as that of power cable when the size of
power cable is less than 16mm
2
. However, when it is>16mm
2
, the size of grounding
cable should not be less than half of 16mm
2
, but at least
16mm
2
.
