BlackMax – Installation Manual
RE_PROD_0005 Version 4
Page 12 of 32
Issue Date 23/03/2021
Step 4.
Electrical connections
BlackMax is designed to be a plug and play unit. However, this limits the output to 15A
(approximately 3kW). To unleash the full power of the BlackMax, it must be hardwired to a remote
switchboard, which contains a MEN and earth stake. To do so, open up the unit as explained in
“Opening the BlackMax”, remove the clear cover on the AC side by undoing the 2 screws holding it
in place. This allows access to the terminal blocks, GPO’s, breakers, earth and neutral bars.
Earthing the Unit: The unit should be earthed to an appropriate earth stake. The earth cable can be
connected to the earth bar (or terminal block) inside the unit.
MEN Link: There is a MEN link installed in the BlackMax. If an external switchboard contains a MEN
link, then the one inside the BlackMax should be removed & the BlackMax hard wired to the main
switchboard.
4.1. Solar
For ease installation, the BlackMax comes with its own PV isolation device
and pre-terminated MC4 connectors on the inside of the unit.
To connect the solar power, insert the unterminated cables (coming from the
PV array) into the system and then terminate the correct MC4’s on the cables.
With the BlackMax PV isolator still in the off position, connect the PV cables
to the unit, check for correct polarity and V
OC
on the isolator terminals.
4.2. Battery
The batteries are shipped inside the unit and can be found in the rear section. For transportation or
maintenance purpose, the batteries can be accessed from the top by lifting the lid or the rear by
removing the back-plate.
Installation
Before any electrical connections are made, check all internal connections are secure and
have not come loose during transport.
Ensure that all breakers and isolators, as well as those supplying power to the unit, are
turned OFF.
Installing an PV array with voltage or current values above the inverter rating will damage the
BlackMax unit and will void warranty.
When exposed to light, photovoltaic (PV) array supplies D.C. voltage to the PCE
