The safe way to use a portable generator
Generator Interlock and Transfer Switch in Orem, UT, Same Day
Running extension cords through a window, or worse, plugging a generator into a dryer outlet, is dangerous. A backfed generator can shock utility crews working on the line. An interlock kit or manual transfer switch lets your portable generator power real circuits in your panel, safely. Our Orem electricians often install these same day ahead of storm season. Emergency at night? An electrician near you answers 24 hours a day.
How an interlock keeps everyone safe
When the grid is down, your generator must never send power back onto the street wires. That backfeed can injure line workers and damage your generator when power returns.
An interlock is a metal plate on your panel. To turn on the generator breaker, you must first turn off the main. It is simple and very reliable.
A manual transfer switch is a small separate panel with switches for chosen circuits. It does the same job in a different way.
Interlock, transfer switch or standby generator?
Three ways to keep power on. Each fits a different budget and need.
| Interlock kit | Manual transfer switch | Standby generator | |
|---|---|---|---|
| How you start it | Roll out generator, flip breakers | Roll out generator, flip switches | Starts by itself |
| Circuits you can run | Any, within generator size | Only pre-wired circuits | Essentials or whole home |
| Works if you are away | No | No | Yes |
| Typical cost level | Lowest | Moderate | Highest |
Want hands-off backup? See Standby Generator Installation.
Portable generator safety tips
A generator is a lifesaver in an outage, if you use it right.
Outside only
Run it at least 20 feet from doors and windows. Carbon monoxide kills.
Use the inlet
Plug into the inlet box with a rated generator cord, never a homemade cord.
Main off first
With an interlock, always turn off the main before the generator breaker.
CO alarms inside
Make sure working CO alarms are on every level. See Smoke and CO Detector Installation.
What installation looks like
Most hookups take a few hours.
Match your generator
We check its plug and wattage so the inlet and breaker fit.
Install inlet and interlock
A weatherproof inlet goes outside and the interlock or switch goes on your panel.
Label and teach
We label circuits, test with your generator and show you the steps.
Round out your outage plan
These services make storm season easier.
Helpful guides from our blog
See all home electrical guidesGenerator transfer switch questions
Is a generator interlock legal?
Yes, when it is a listed interlock made for your panel and installed with a permit by a licensed electrician.
Can I plug my generator into a dryer outlet?
No. That is backfeeding through a so-called suicide cord. It can shock utility workers and start fires.
What size generator works with an interlock?
Many homeowners use portable generators that can run essentials. We match the inlet and breaker to your generator's output.
Interlock or transfer switch, which is better?
An interlock lets you choose any circuit and costs less. A transfer switch limits you to pre-wired circuits but some people find it simpler.
Does an interlock or transfer switch need a permit?
Yes. It is panel work. We file the permit and handle the inspection.
Can I upgrade to a standby generator later?
Yes. Many homeowners start with an interlock, then add a standby generator later.
Make your portable generator useful
We install a safe inlet and interlock so your generator can power the circuits that matter.
Licensed through Utah DOPL and fully insured. Learn about our team.