Altering Generator Transfer Switch Connections
The Importance of Properly Sizing a Generator and Transfer Switch: The amperage size of the plug has internal protection in place and changing sizes of any of these parts would greatly affect the integrity of the circuit design and could cause some potential damage.
Understanding Generator and Transfer Switch Sizing
Electrical Question: I need to be able to plug my generator with a 3 prong locking 125/250v 30amp receptacle into my transfer switch which has a “4” prong locking 125/250 volt 50 amp plug.
- Is that possible or do I need to change the transfer switch plug? I can email pics of both if needed.
Background: Rob, a Homeowner from Lithia, Florida
Thanks for your electrical wiring question Rob.
The Importance of Properly Sizing a Generator and Transfer Switch
- You should not change the size of the transfer switch plug.
- You must understand that the amperage size of the plug has internal protection in place and changing sizes of any of these parts would greatly affect the integrity of the circuit design and could cause some potential damage.
- The transfer switch is sized based on the loads that it will be connected to.
- There is nothing mentioned here about the connected loads.
- The decision to alter any of this equipment without seeing the full design is not recommended.
The Following will assist you with your Generator and Transfer Switch
Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
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.
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