Victron energy PMP482305000 Manuel page 11

4.3 Connection of the AC cabling
The MultiPlus-II 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-II 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.
Torque: 2 Nm
The terminal blocks can be found on the printed circuit board, see Appendix A.
Do not invert neutral and phase when connecting the AC.
AC-in
•
The AC input cable can be connected to the terminal block 'AC–in'.
From left to right: "N" (neutral), "PE" (earth) and "L" (phase)
This product can cause a DC current in the external protective earthing conductor. Where a residual current-operated
protective (RCD) or monitoring (RCM) device is used for protection in a case of direct or indirect contact, only an RCD or
RCM of Type B is allowed on the supply side of this product
The AC input must be protected by a fuse or magnetic circuit breaker rated at 32A 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
The AC output cable can be connected directly to the terminal block 'AC-out'.
From left to right: "N" (neutral), "PE" (earth) and "L" (phase)
With its PowerAssist feature the Multi can add up to 3kVA (that is 3000 / 230 = 13A) to the output during periods of peak power
requirement. Together with a maximum input current of 32A this means that the output can supply up to 32 + 13 = 45 A.
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.
• AC-out-2
See section 4.4.4.
4.4 Optional Connections
A number of optional connections are possible:
4.4.1 Remote Control
The product can be remotely controlled in two ways.
With an external switch (connection terminal H, see appendix A). Operates only if the switch on the MultiPlus-II is set to "on".
•
With a Multi Control panel (connected to one of the two RJ48 sockets B, see appendix A). Operates only if the switch on the
•
MultiPlus-II is set to "on".
4.4.2. Programmable relay
The product is equipped with a programmable relay.
The relay can be programmed for all kinds of other applications however, for example as a starter relay for a generator.
4.4.3 Programmable analog/digital input/output ports
The product is equipped with 2 analog/digital input/output ports.
These ports can be used for several purposes. One application is communication with the BMS of a lithium-ion battery.
4.4.4 Auxiliary AC output (AC-out-2)
Intended for non-critical loads and directly connected to the AC input. With current measurement circuit to enable PowerAssist.
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