SUN2000 (8KTL-28KTL) 
Quick Installation Guide 
Huawei Proprietary and Confidential                                     
Copyright © Huawei Technologies Co., Ltd. 
 
7. Connecting DC Input Power Cables 
Step 1  Remove cable glands from the positive and negative connectors. 
Step 2  Remove the insulation layer with an appropriate length from the positive and negative power 
cables by using a wire stripper as show in Figure 1-27. 
PV power cables with a cross-sectional area of 4 mm
2
 are recommended. 
Figure 1-27 Connecting DC input power cables (1) 
 
 
Note: L2 is 2 to 3 mm longer than L1. 
PV power cables with a cross-sectional area of 4 mm
2
 are recommended. 
Step 3  Insert the positive and negative power cables into corresponding cable glands. 
Step 4  Insert the stripped positive and negative power cables into the positive and negative metal 
terminals respectively and crimp them using a clamping tool. Ensure that the cables are 
crimped until they cannot be pulled out by force less than 400 N, as shown in Figure 1-28.