Chapter 9 Options
144
Ch
ap
ter 9
2.2kW
≥
200
≥
250
4kW
≥
130
≥
500
5.5kW
≥
90
≥
600
7.5kW
≥
75
≥
780
11kW
≥
50Ω
≥
1200
15kW
≥
40Ω
≥
1600
18.5kW
≥
25Ω
≥
2000W
22kW
≥
22Ω
≥
3000W
9-8.Main Circuit Breaker (MCCB), Contactor, Wire
9-8-1. Molded case circuit breaker (MCCB) or earth leakage circuit breaker (ELCB)
MCCB or ELCB as the power switch of the inverter also plays a protective role to the power
supply. Note: do not use MCCB or ELCB to control start/stop of the inverter. The capacity of the
circuit breaker is 1.5~2 times the rated current of the inverter.
9-8-2.Contactor
It's used to cut off power supply to prevent the failure to be expanded when the protection
function of the system is activated. The contactor can not be used to control the stop/start of the motor.
Model
breaker(A)
Input cable/output cable
(copper cable)mm2
Contactor rated working current A
(voltage 380V or 220V)
015G3
63A
6
50
018G3
100A
10
63
022G3
100A
10
80
030G3
125A
16
95
037G3
160A
25
120
045G3
200A
35
135
055G3
250A
50
170
075G3
315A
70
230
093G3
400A
70
280
110G3
400A
95
315
132G3
400A
95
380
160G3
630A
150
450
187G3
630A
95x2
500
200G3
630A
95x2
580
220G3
800A
150x2
630
250G3
800A
150x2
700
280G3
1000A
150x3
780
315G3
1200A
150x3
900
355G3
1280A
150x3
960
400G3
1600A
150x4
1035
450G3
1600A
185x3
1230
9-8-3.Cable
1.Power cables
The dimension of input power cable and motor cable should meet the local provision:
Input power cable and motor cable should bear the related load current.
The maximum rated temperature margin conditions of the motor cable should not be sustained
below 70 degrees.
Conductivity of the PE conductor and phase conductor capacity are the same(same cross-
sectional area),
About EMC requirements, see "EMC Guidance Content"
To meet the CE EMC requirements, a symmetrical shielded motor cable must be used (see figure