5
a. Connect the electrical appliances to converter
(1) Check the speci
fi
cations of the electrical appliances to be used with the converter, make sure that
the combined total wattage ratings of all the appliances to be used simultaneously with the
converter won't exceed the maximum peak capacity of the converter.
Note that the sockets may only be loaded up to 15 amps. 15 amps correspond to 1650 Watts for
the USA socket and to 3300 Watts for the EU and UK sockets. To prevent overloading of the sockets,
all three sockets are equipped with 15 amp circuit breakers.
(2) Furthermore note that the voltage converter should not be loaded with more than 80%
unattended or for a longer periods.
(3) Make sure all appliances are turned off before connection.
(4) Connect your appliance or appliances to the converter. If your appliances voltage rating is 110 volt AC,
then connect it to the 110 volt screw terminal output or the US 110 volt socket. If your appliances
voltage rating is 230 volt AC, then connect it to the 230 volt screw terminal output or the EU or UK
220 volt socket, corresponding the input plug of your device.
Ensure that the total starting power needed does not exceed the rated maximum output power of
the converter. Depending on the device the starting current can exceed the nominal power of a
device many times over.
(5) Caution: This is not an isolating transformer, there is no galvanic isolation between the primary and
secondary circuit. Always make sure that your connected appliances are connected to the ground
of your converter.
Always use the appropriate socket for connecting your equipment to the converter: the USA Nema
output for Type A and B plugs, the EU Schuko output for Type C and F plugs, and the UK output for
Type G plugs. Never connect an EU Schuko (Type F) or Type E plug to the UK socket!
If your device has an earth connection and you connect the device via the screw terminals, you have
to connect it to the earth connection of the transformer.
2. Operation of the Voltage Converter
b. Connect converter to electrical mains
The 110 volt and the 220 volt screw terminal connections function as both input and output.
For step down operation, connect the voltage converter to a 230 volt power supply via the 230 volt
connection. For step up operation, connect the voltage converter to a 110 volt power supply
via the 110 volt connection.
Caution:
Always make sure that your converter is connected to the ground. Always use the
appropriate L, N and G connections to connect your converter to the grid. This is not an isolating
transformer, primary and secondary side share the same ground.
Bronson WTI Series
Step-up/Step-down Toroidal Core Voltage Converter
Instruction Manual
