manual:pws2-30k:electrical_connection [Sinexcel ESS knowledge base]

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====== Electrical Connection ======
PWS2-30K-NA electrical wiring should strictly following the following requirements. Please read the following carefully. 
<WRAP center round danger 60%>
 **DANGER**\\	Before electrical connection, please ensure that all switches of energy storage system are in “OFF” . Otherwise, the high voltage of the inverter might cause an electric shock risk. 
</WRAP>

<WRAP center round warning 60%>
**WARNING**\\	Incorrect wiring operation might cause operator casualties or permanent equipment damage. \\ 
Only qualified professional can conduct wiring work. \\ 
Before electrical connection, remember that the inverter has 2 supplies. Electrical operator should wear protective devices such as helmet, insulated shoes and protective gloves. 
</WRAP>

<WRAP center round warning 60%>
 **CAUTION**\\	The cable colors mentioned in all electrical connection diagrams in this chapter are for reference only. Cable selection should comply with local cable standard. 
</WRAP>

===== Bottom view=====
{{:manual:pws2-30k:微信图片_20220321142840.png?600|}}
^No.	^Description^
|1	|DC waterproof tube +	|
|2	|DC waterproof tube -	|
|3	|Ethernet waterproof terminal	|
|4	|RS-485 waterproof terminal	|
|5	|R-EPO waterproof terminal|
|6	|AC waterproof tube|
|7	|AC disconnect|
|8	|Fan box|

=====  Bottom cover removal =====

To ensure electric safety, the electric wiring terminal of the case is closely blocked by the bottom cover. Before wiring, remove the bottom cover.\\ 
{{:manual:pws2-30k:image134_remove_bottom_cover.png|}}

===== Power terminals =====
The power terminals of PWS2-30K is shown in the image below. 

The cable colors, grounding, wiring should consist to the local electrical code. 

{{:manual:pws2-30k:image138_cable_installation.png|}}

The recommended cable size:
  * Line: AWG 8
  * Neutral: AWG 8
  * PE: AWG 8
  * DC: AWG 4 (better consult your battery manufacturer)


<WRAP center round tip 60%>
In some contries, such as United States, cables shall always be enclosed by conduits. In this case, the waterproof caps should be removed.
</WRAP>


=====  Bottom cover restore =====
After power cables installed properly, the bottom cover should be reinstalled.