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Victron MultiPlus 24 5000 120-100 Manual

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EN NL FR DE ES SE Appendix
4.3 Connection of the AC cabling
The MultiPlus is a safety class I product (supplied with a ground terminal for
safety purposes). Its AC input and/or output terminals and/or
grounding point on the outside of the product must be provided with
an uninterruptible grounding point for safety purposes.
The MultiPlus is provided with a ground relay (relay H, see appendix B) that
automatically connects the Neutral output to the chassis if no external
AC supply is available. If an external AC supply is provided, the ground
relay H will open before the input safety relay closes. This ensures the
correct operation of an earth leakage circuit breaker that is connected to
the output.
- In a fixed installation, an uninterruptable grounding can be secured by
means of the grounding wire of the AC input. Otherwise the casing must be
grounded.
- In a mobile installation (for example, with a shore current plug),
interrupting the shore connection will simultaneously disconnect the
grounding connection. In that case, the casing must be connected to the
chassis (of the vehicle) or to the hull or grounding plate (of the boat).
- In case of a boat, direct connection to the shore ground is not
recommended because of potential galvanic corrosion. The solution to this
is using an isolation transformer.
The terminal blocks can be found on the printed circuit board, see Appendix A. The shore or mains cable must be connected to the
MultiPlus with the aid of a three-wire cable.
- AC-in (see appendix A)
The AC input cable can be connected to the terminal block “AC–in”.
From left to right: “PE” (earth), “N” (neutral) and “L” (phase). Maximum torque: 6 Nm.
The AC input must be protected by a fuse or magnetic circuit breaker rated at 100A or less, and cable cross-section must be
sized accordingly. If the input AC supply is rated at a lower value, the fuse or magnetic circuit breaker should be down sized
accordingly.
- AC-out-1 (see appendix A)
The AC output cable can be connected directly to the terminal block "AC-out". Maximum torque: 6 Nm.
With its PowerAssist feature the MultiPlus can add up to 5kVA (that is 5000 / 230 = 22A) to the output during periods of peak power
requirement. Together with a maximum input current of 100A this means that the output can supply up to 100 + 22 = 122A.
An earth leakage circuit breaker and a fuse or circuit breaker rated to support the expected load must be included in series
with the output, and cable cross-section must be sized accordingly. The maximum rating of the fuse or circuit breaker is 122A.
- AC-out-2 (see appendix A)
A second output is available that disconnects its load in the event of battery operation. On these terminals, equipment is connected that
may only operate if AC voltage is available on AC-in, e.g. an electric boiler or an air conditioner. Maximum torque: 6 Nm.
The load on AC-out-2 is disconnected immediately when the MultiPlus switches to battery operation. After AC power becomes available
on AC-in, the load on AC-out-2 will be reconnected with a delay of approximately 2 minutes. This to allow a genset to stabilise.
AC-out-2 can support loads of up to 50A. An earth leakage circuit breaker and fuse rated at max. 50A must be connected in series with
AC-out-2.
Note: Loads connected to AC-out-2 will be taken into account in the PowerControl / PowerAssist current limit setting. Loads directly
connected to the AC supply will not be included in the PowerControl / PowerAssist current limit setting.
… 11 …


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