Transfer Switches For Portable Generators

A transfer switch prevents electricity fromcause severe damage to equipment, as well as
flowing simultaneously between your portabledeath to those who might be working to restore
generator and the utility grid. It is mounted nextpower in your vicinity.
to your home circuit breaker box and canThe transfer switch contains several circuits and
operate manually or automatically.the electrician can assign each circuit to a different
In the event of a blackout, you can powerload. This provides efficient management of usage
several appliances to include the refrigerator,and extends the effectiveness of the portable
television, lights and even your sump pump.generator. When the utility power goes out, you
However, you must first position the generatorsimply plug your generator into the transfer
into place no less than 15 feet from your homeswitch, start it up, and flip the transfer switch
to prevent carbon monoxide consumption.from the Utility position to the Generator position.
One way to provide power is to run extensionFor convenience, you might wish to purchase a
cords from the generator to your lights andremote power inlet box to be installed in a location
appliances. This can be inconvenient and unwieldyaway from the actual transfer switch unit itself.
while making it difficult to operate some criticalThis would permit plugging into a separate
circuits like the furnace fan or well pump.receptacle that is positioned closer to the
Another way is to connect the portable generatoroperating generator. You can then have a shorter
directly to your household wiring by installing aand less cumbersome master cord running from
manual transfer switch. This will permit the use ofthe generator all the way to the switch panel
only one cord to provide electricity to several orinside the house.
all of your most important household circuits,In summary, the procedure works like this:
including the furnace fan and well pump. Bear inWhen the utility company power goes out:
mind the National Electrical Code mandates that a
transfer switch be properly installed for safety1. Plug the generator cord into the transfer switch
precautions.or optional power inlet box.
By way of comparison, permanently installed2. Turn all circuit breakers in the transfer unit to
standby generators come with transfer switchesthe off position.
that automatically kick in when the utility power3. Start the generator and give it time to warm
goes down. Conversely, the transfer switch forup.
portable generators is an additional cost item that4. Flip the main breakers in the transfer unit to
can average $200 to $500 depending on the totalthe Generator position.
circuitry and wattage requirements.5. Turn on the desired circuits individually to
It is highly recommended that you engage theprevent overloading the generator.
services of a licensed electrician to install theOnce power is restored:
transfer switch and connect it with the main
breaker box. Although most transfer kits come1. Turn the main breakers in the transfer unit
with excellent instructions for the do-it-yourselfback to Utility Power.
person, you always run the risk of creating a2. Turn on any other circuits that were turned off.
back-feed through the utility lines should you3. Turn off the generator.
innocently make an error while wiring. This can4. Disconnect the cords.