Technical data

9 Mechanical data
MASTERGUARD Series SIII
UPS Systems from 60 to 800 kVA
16
10 Environmental conditions
MKA4CAT0UKSIII/Rev. 11-11/2004/UK
The enclosure shall be installed with at
least 400 mm of free space between
the device and roof of the enclosure in
order to allow cooling air to exit
unhindered.
9.3 Cable entry
Cable entry shall be from the bottom
or bottom-side of the cabinet. Top
cable entry shall be available as an
option.
9.4 Enclosure design
All enclosure surfaces of the enclosure
shall be finished with an
electrostatically applied epoxy coat.
The coating shall have a thickness of at
least 60 microns. Standard colour of
the enclosure shall be RAL 7035 (light
grey).
9.5 Access to integrated subassem-
blies
All internal subassemblies shall be
accessible for typical and most
frequent maintenance from the front
of the unit via hinged doors. Rear
access shall not be required for
installation or servicing. The UPS shall
be forkliftable from the front after the
removal of the bottom trim panels.
9.1 Enclosure
The UPS shall be housed in a space-
saving modular enclosure with front
doors and removable panels
(protection as standard to IP 20). The
enclosure shall be made of zintec
coated sheet steel. The doors shall be
lockable.
9.2 Ventilation
Forced redundant air cooling will
ensure that all the components are
operated within their specification.
Airflow shall be controlled according to
demand. The cooling air entry shall be
in the base and the air exit at the top of
the device.
The UPS shall be capable of
withstanding any combination of the
environmental conditions listed below.
It shall operate without mechanical or
electrical damage or degradation of
operating characteristics.
10.1 Ambient temperature
0° to 40°C
Maximum average daily temperature
(24 hr) 35°C
Maximum temperature (8 hr) 40°C
10.2 Relative humidity
Up to 90% (non condensing) for
temperature of 20°C.
10.3 Altitude
The maximum altitude without
derating shall be 1000 metres above
sea level or 1500 metres at 25°C. The
derating shall be 1.2% for every 100
metres above 1000 metres.
Tecnico-SIII-MG 10-11-2004 8:22 Pagina 16