Studer Innotec SA
next3
22 V 1.3 © Studer-Innotec SA next3 Tech manual
5.1.2
General recommendations
The connection of the next3 charger is an important step of the installation. The next 3 is
designed to be robust and is electronically protected against overloads, short-circuits,
overheating, polarity reversal of the battery and polarity reversal of the PV.
Be aware of the following general guidelines:
• It may only be carried out by qualified professionals, aware of the rules and regulations in
force. The installation must always comply with the local standards.
• The cross-sections of the cables connected to its terminals must comply with local regulations
even if indications are given in following chapters.
• The installation materials such as cables, connectors, distribution boxes, fuses, etc. must be
adapted and must be conform to the applicable laws and regulations, specially about fire
hazards.
• All cables in use should be isolated with PVC, TFE, PTFE, FEP, neoprene or polyimide. Make sure
that connections are correctly tightened and that each wire is connected at the right place.
The next3 falls within protection class I. It has a PE connection terminal. It is mandatory that a
protective earth is connected to the AC-Source and/or AC-Loads PE terminals. An additional
protective earth is located at the bottom of the unit.
The connection compartment of the next3 must remain permanently closed while
the device is operating.
Before opening, check that all voltage sources (AC, battery and PV) have been
disconnected or switched off and wait for at least 2 minutes before opening the
equipment. It is imperative to close the protection cover on the connection
terminals after each servicing.
Before connecting or disconnecting the entry or exit cables AC-Source, AC-Loads and AC-
Flex, the installer must be sure that there is no voltage present in the cables OR on the
terminals.
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