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Electrical Wire and Cable
Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Wiring and Installing Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable

Generator Transfer Switch

generator-transfer-switch
Summary: See how a transfer switch ensures a safe isolation of the electric utility company and your home generator.


The Generator Transfer Interlock Safety Switch




Manual Transfer Switches

Generators smaller then 4,000 watts are in most instances not capable of powering a home during a power outage because they can not provide the needed power for electrical loads such as motors, well pumps and ventilation blowers on a central heating system.

Home Generator Transfer Switch
A typical home supplied with 200-amp electric service can actually support a load of approximately 45,000 watts (45kW) of electric demand.

manual-transfer-switch A Manual Transfer Switch

This illustration shows a manual transfer switch. Notice that the handle will only allow contact with one source of electricity at a time and also has a center position which stops the flow of electricity all together.

Portable Generator Transfer Switch
When portable generators are used for homes they too must have a transfer switch unless the outlet or cord being used from the generator will power an isolated device or load that is not connected to the home electrical wiring system. "Cheater cords" should never be used to back-feed a homes electrical system because this can create extremely hazardous conditions in your home and for electrical utility workmen and most likely damage your portable generator when normal power is restored.

30 amp transfer switch

The 30 amp transfer switch is very common because this is one of the most widely sold sizes of portable generators.

A transfer switch will prove to be a wise investment whether you choose a manual transfer switch or a fully automatic transfer switch.




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More About Generator Transfer Interlock Safety Switches






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Learn more about How to Wire Generators and Transfer Switches
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Electrical Tip

The Safest Way to Test Electrical Devices and Identify Electric Wiring!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester, [amazon.com], I use for the detection of Standard Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

Questions and Answers about Wiring a Generator