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2+2 Automatic Transfer Switch Instructions for installation & use Applies to the following models: Part
no. System Max Number
of Number of voltage current inputs outputs 90096 230VAC 20amps 2 2 |
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System overview The transfer switch has two
inputs & two outputs, as represented schematically below: |
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Output 2 is fed
from the transfer switch, which is powered from input 2, unless input 1 is
present. When input 1 is
present, it is always routed through to output 2, & so is called the
primary, or priority input. Output 1 is
supplied directly from input 1, for convenience, & is often used to power
a battery charger when input 1 is an incoming mains supply. Critical loads,
requiring backup should the primary power fail (input 1), would normally be
connected to output 2, with the backup power source supplying input 2. |
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Installation The transfer
switch must be located in a dry area, not subject to spray or water exposure. Remove the cover
to expose the unit mounting holes, ensuring that power is not connected
whilst the cover if off. Mating plugs are
supplied with the unit; the blue plugs are for the input sockets & the
grey plugs are for the outputs. The plugs are
marked with L, N & earth symbols and should be wired as follows: -
live
conductor (brown) to the L terminal -
neutral
conductor (blue) to the N terminal -
earth
conductor (green/yellow) to the terminal marked E or marked with the earth
symbol. Never apply
power to the unit while the access cover is removed. The maximum
current that may pass through the unit is 20amps, & the sources of supply
should incorporate protection devices (fuses or MCB’s) to disconnect if this
rating is exceeded. The trip current of these devices should also be selected
protect the installation wiring, which may require devices of lower current
rating than 20amps. |
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User information The connectors
on the transfer switch are not intended to be used to regularly connect &
disconnect load equipment & power sources. Following installation, they
would normally be left connected. The connectors provide for ease of
maintenance & also allow output 2 loads to be temporarily moved to output
1 should the need arise. Green indicator
lamps adjacent to each connector show that power is present on their
associated connectors. WARNING: Never rely on these lamps to
indicate power present if the unit cover is to be removed – always remove all
plugs from the unit to ensure that there are no exposed hazardous voltages. The unit is
fully automatic in operation, so no user intervention is required. |
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Copies of this manual Electronic
copies of this manual are available from the technical support section of our
website: http://www.antares.co.uk/technical/public_area/inverters_and_transfer-switches.htm |
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Contact details Chiltern Hill Chalfont St
Peter Gerrards Cross Buckinghamshire SL9 9UQ Telephone: +44
1753 890888 Facsimile: +44
1753 891260 e-mail: info@antares.co.uk website: http://www.antares.co.uk technical support: http://www.antares.co.uk/technical/index.htm |
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© 2008 |
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