Cable Connection; Connect Cables To The Ac Grid Side And Off-Grid Side - Redx RX Series User Manual

5 Cable Connection

5.1 Connect cables to the AC grid side and off-grid side

RX-2505AC has terminals for on and off-grid. As shown in Figure 5-1, the left terminal is the off-grid
terminal (EPS) and the right terminal is the on-grid terminal. An independent AC circuit breaker must be
configured for each circuit to safely disconnect then system. When selecting the external cable, consider
the hole in the cable gland.The table below is a recommendation for cable selection. Engineers should
refer to local standards to select cables. Cable length is generally 2 to 10 meters, long cable will lead to
voltage drop from the rated value, consequently requiring an increase of the cross-sectional area.
Recommended specifications of AC circuit breaker:
The following table lists the recommended specifications of AC cables:
Model
RX-2505AC
Rev 20220606
Table 5-1 – Circuit breaker sizing
Model
RX-2505AC
Table 5-2 – Cable sizing
Cross-sectional area (mm2)
Range Best
4-6 4
Figure 5-1 – Battery 240V terminals and covers
Table 5-3 – Battery 240V terminal cover details
1
RX-2505AC terminals
AC circuit breaker recommendation
Cable outer diameter(mm2)
Range
10-14
GRID/EPS wiring cover
RX2505AC
25A
Best
14
2
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