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1 Reply
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36
XP
68
Honor
It’s important to connect your AC input and outputs correctly to ensure the MultiPlus-II 230V functions safely and effectively.
Here’s how to do it:
Identifying AC Terminal Blocks:
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Locate the AC terminal blocks on the printed circuit board. You’ll find these detailed in Appendix A of the manual.
AC Input Connection (‘AC-in’):
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Connect the AC input cable to the terminal block labeled ‘AC-in’.
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Connect the wires from left to right in the order of “N” for Neutral, “PE” for Protective Earth, and “L” for Phase.
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Ensure not to invert the neutral and phase wires when making these connections.
AC Input Protection: The AC input must be protected by a correctly rated fuse or magnetic circuit breaker:
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32 A for the 3 kVA model
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50 A for the 5 kVA model
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100 A for the 8 kVA and 10 kVA models
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Size the cable cross-section accordingly, and if your input AC supply is rated lower, downsize the fuse or circuit breaker to match.
AC Output Connection (‘AC-out-1’):
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The AC output cable can be directly connected to the terminal block ‘AC-out’.
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Connect the wires from left to right in the order of “N” for Neutral, “PE” for Protective Earth, and “L” for Phase.
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Include an earth leakage circuit breaker and a fuse or circuit breaker rated for the expected load in series with the output.
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Size the cable cross-section to accommodate the potential combined output of up to 45 A (the sum of a 32 A input current and a 13 A contribution from PowerAssist).
AC Secondary Output (‘AC-out-2’):
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This output is used for loads that should only operate when AC power is available on ‘AC-in-1’, such as electric boilers or air conditioners.
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Connect the secondary loads to ‘AC-out-2’.
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These loads will be disconnected during battery operation and reconnected after a 2-minute delay once AC power is restored on ‘AC-in-1’ to allow any generator to stabilize.
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