User Instructions

www.pulsar.pl EN54C RED POWER plus
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4. Installation.
4.1. Requirements.
The PSU is to be mounted by a qualified installer, holding relevant permits and licenses (applicable and
required for a given country) for ~230 V in and low-voltage installations.
As the power supply is designed for a continuous operation and is not equipped with a power-
switch, therefore, an appropriate overload protection in the power supply circuit should be provided. Moreover,
the user should be informed how to disconnect the power supply unit from the mains supply (usually by
assigning an appropriate fuse in the fuse box). One switch should only protect one power supply. The electrical
system shall follow valid standards and regulations. The power supply should operate in a vertical position in
order to provide free and convectional air flow through ventilating holes of the casing.
As the PSU cyclically runs a periodic battery test, during which the resistance in the battery circuit is
measured, pay attention to the proper connection of cables to the terminals. Installation cables should be firmly
connected to the battery side terminals and to the power supply connector. If necessary, it is possible to
permanently disconnect the battery from the power supply systems by removing the F
BAT
fuse.
The side walls of the housing include the embossings, which should be used to carry out installation
cables. Use a blunt instrument to make an opening for cable gland from the outside of the housing. Then,
carefully mount the cable gland, protecting the PSU from water penetration, in the opening.
Fig. 4. The method of forming an opening for cable gland.
The PSU is fitted with PG9 and PG11 cable glands. Gland size should be chosen depending on the
cross-section of the cable. Single cable gland can be used for only one wire.
Fig. 5. Recommended types and sections of installation cables PG9 and PG11 for cable glands.