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4. Installation
4.2.1 Protective devices
To ensure proper protection from overloads, output short-circuits or electrical shocks, it is necessary to install adequate
automatic residual-current and thermal-magnetic breakers upstream of the UPS on the input line. In case there is a sepa-
rate bypass line, the residual current earth leakage protection system must be common for the AC input and bypass lines
and must be installed upstream.
The protective devices must be selected according to the indications in the tables shown in chapter 11.
CAUTION
The equipment can cause a d.c. current in the PE conductor. Where a residual current-operated protective device (RCD) is
used for protection against electrical shock, only an RCD of Type B is allowed on the supply side of this product.
4.2.2 Disassembly of the distribution panel
To carry out all the electrical connection operations, it is necessary to unscrew the screws that fix the distribution panel
to the cabinet. The screws must be saved to close the distribution panel at the end of the installation (hex socket M6x20
screws along with M6 toothed washers).
Unscrew also the screws that fix the plexiglass protection panel and save them to close the panel and the end of the
installation (Phillips pan head M4x10 screws).
The following pictures show how to disassemble the panels:
KEOR MOD 125
KEOR MOD 250
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