Table of Contents
Electrical Connection
PWS2-30K-NA electrical wiring should strictly following the following requirements. Please read the following carefully.
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.
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.
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.
Bottom view
| 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.
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.
The recommended cable size:
- Line: AWG 8
- Neutral: AWG 8
- PE: AWG 8
- DC: AWG 4 (better consult your battery manufacturer)
In some contries, such as United States, cables shall always be enclosed by conduits. In this case, the waterproof caps should be removed.
Bottom cover restore
After power cables installed properly, the bottom cover should be reinstalled.