Parallel Connection; Three-Phase Connection - Victron energy MultiPlus 12/500/20-120V Manual

4.4.5. Parallel connection

The MultiPlus can be connected in parallel with several identical devices. To this end, a connection is established between the
devices by means of standard RJ45 UTP
require subsequent configuration, see the
In the event of connecting MultiPlus units in parallel, the following requirements must be met:
• A maximum of six units can be connected in parallel.
• Only identical devices may be connected in parallel.
• The DC connection cables to the devices must be of equal length and cross-section.
• If a positive and a negative DC distribution point is used, the cross-section of the connection between the batteries and the DC
distribution point must at least equal the sum of the required cross-sections of the connections between the distribution point
and the MultiPlus units.
• Place the MultiPlus units close to each other, but allow at least 10 cm for ventilation purposes under, above and beside the
units.
• UTP cables must be connected with an
• A battery-temperature sensor need only be connected to one unit in the system. If the temperature of several batteries is to
be measured, you can also connect the sensors of other MultiPlus units in the system (with a maximum of one sensor per
MultiPlus). Temperature compensation during battery charging responds to the sensor indicating the highest temperature.
• Only one means of remote control (panel or switch) can be connected to the system.

4.4.6. Three-phase connection

The MultiPlus can also be used in a 3-phase wye (Y) configuration. To this end, a connection between the devices is made by
means of standard RJ45 UTP cables and RJ45-splittera splitter (the same as for parallel operation). The system (MultiPlus units
plus an optional control panel) will require subsequent configuration, see the
see the previous Parallel connection [11]
Note: The MultiPlus is not suitable for a 3-phase delta (Δ) configuration.
Page 11
MultiPlus
cables. The system (one or more MultiPlus units plus an optional control panel) will
Configuration [13] chapter.
RJ45-splitter from one unit to the other (and to the remote panel).
Parallel connection diagram.
chapter.
Configuration [13] chapter. For the prerequisites
Installation