Uninterruptible power supply Supply MEg101.4
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6/ INSTALLATION AND PUTTING IN OPERATION
If the uninterruptible power supply MEg101.4 is used in ways other than origi-
nally intended, the protection provided by the power supply may be impaired.
e uninterruptible power supply MEg101.4 is a Class A product designed
for industrial environments. It may cause radio interference in other environ-
ments.
e power supply MEg101.4 unit is placed only in vertical position and is always
installed on DIN rail (35 mm) in the case or under the terminal cover panel so that
protection rating, re resistance, mechanical impact resistance for the required
environment can be reached. Due to protection against electrical injury and me-
chanical impact resistance improvement require overlapping the terminals cover
by the cover panel.
e uninterruptible power supply MEg101.4 may only be installed by the per-
son authorized to work with input voltage and equipped with personal protection
equipment against electrical injury and familiarized with the instruction manual.
e denotation of supply terminals in the POWER L and N section applies to AC
mains supply and the denotation + and – applies to DC supply voltage.
e power supply MEg101.4s with the external lead-acid accumulator is delivered
unconnected. When handling the accumulator, its output terminals must not be
short-circuited. When installing the MEg101.4 set with the external accumulator,
the correct polarity must be respected. In case of incorrect connection of the
accumulator to the power supply terminals (terminal 35 is + pole, terminal 36 is
–pole), the fuse FU2 (2.5 A) will burn out. In case of short-circuit of the accumu-
lator terminals (terminals 35 and 36) the fuse FU3 (0.16 A) will burn out.
Regardless of the power supply voltage direction or way of grounding (DC or AC,
none or one grounded pole), it is neccessary to connect both supplying wires via
fuse switch-disconnector according to Fig. 4.
It is also neccessary to place the fuse switch-disconnector as close as possible and
as easily reachable as possible.
e uninterruptible power supply MEg101.4 is installed always on the DIN rail TS 35.
e MEg101.4 is always in vertical position with ventilation openings on upper side and
the inscription on the unit's panel is readable from left to right, see Fig. 3.
Power supply MEg101.4 wiring is in Fig. 4.
