编号：
GR-UM-C -00
17
/
57
DANGER
It is forbidden to add load between inverter and breaker.
If the cable is thick, after tightening the cable do not shake it and ensure the cable is well-connected
and then start the inverter. Loose connection may cause overheat.
Preparation before connection:
1. Disconnect inverter DC switch and AC breaker or switch
2. When the AC wire is tightened, the torque of the PE grounding is 35kgf.cm, and the other torque is 50kgf.cm.
3. Measure the grid voltage and frequency. For detailed parameters, please refer to Chapter 10 Product Specifications.
AC circuit breaker specifications:
PV inverter model
Circuit breaker specifications
MAC 30KTL3-X LV
63A/400Vac
MAC 40KTL3-X LV
80A/400Vac
MAC 50KTL3-X LV
100A/400Vac
MAC 60KTL3-X LV
100A/400Vac
MAC 50KTL3-X MV
80A/ 480Vac
MAC 60KTL3-X MV
100A/480Vac
MAC 66KTL3-X MV
100A/480Vac
MAC 70KTL3-X MV
100A /480Vac
Cable specifications refer to the following table:
PV inverter
Cross-sectional area
（
mm
2
）
Recommended value
（
mm
2
）
Copper wire
Aluminum wire
Copper wire
Aluminum wire
MAC 30KTL3-X LV
10-35
25-50
16
25
MAC 40KTL3-X LV
25-35
35-50
30
35
MAC 50KTL3-X LV
25-35
35-50
35
50
MAC 60KTL3-X LV
25-35
35-50
35
50
MAC 50KTL3-X MV
25-35
35-50
30
35
MAC 60KTL3-X MV
25-35
35-50
35
50
MAC 66KTL3-X MV
25-35
35-50
35
50
MAC 70KTL3-X MV
25-35
35-50
35
50
Notice: The cable must be unbroken.
AC terminal wiring steps:
A. The following figure shows the AC terminal on the inverter. L1, L2, and L3 are three fire channels, and N is a nature
channel.
Note: The screws are matched with M8 screws.
B. Determine the stripping length according to the specifications of the crimping terminal (recommended 16-18mm), crimp
the wire and terminal with the crimping pliers, then pass the cable through the protective casing, lock it on the
corresponding AC terminal, and tighten the terminals Screw.
PC
