Generator Interlock Kit Installation · Lexington, KY
Generator Interlock Kit Installation in Lexington, KY
A generator interlock kit is a mechanical slide on the main panel that prevents the main breaker and the generator breaker from being on at the same time. With an exterior power inlet, it lets a portable generator power chosen circuits without backfeeding the utility.
- Call now to check electrician availability in your area
- Independent, licensed electricians
- Serving Chevy Chase, Ashland Park, Bell Court and more
Why generator interlock kit installation comes up in Lexington
The February 2003 ice storm left much of Lexington without power for days, and winter storms still bring outages. A portable generator wired through an outdoor inlet and a breaker interlock lets homeowners run the furnace blower, refrigerator, sump pump and lights without back-feeding Kentucky Utilities' lines, which protects crews during restoration. The interlock is a mechanical plate that keeps the main and generator breakers from being on together.
The generator must run outdoors, away from windows and doors. Permits come from the Division of Building Inspection. Horse-farm properties on the edge of town may need well pumps included.
- In winter the furnace blower, sump pump and refrigerator are the usual priorities, which a portable generator can run through an exterior inlet and panel interlock.
- Permits in Lexington
- Lexington and Fayette County share a merged urban county government, and electrical permits come from its Division of Building Inspection. Kentucky licenses electricians through the state Department of Housing, Buildings and Construction.
- Electric utility
- Kentucky Utilities (KU)
Signs to look for
- You own or plan to buy a portable generator
- Outages in your area last hours or days
- You need to keep a sump pump, furnace or well pump running
- You want backup power without a standby generator
How the work is done
1. Match the panel
The electrician confirms an interlock kit is listed for your panel model.
2. Install the inlet
An exterior power inlet box is mounted near where the generator will run, away from windows.
3. Install interlock and breaker
The generator breaker and interlock are installed in the main panel.
4. Test and inspect
Changeover is tested and the work is inspected.
What moves the price in Lexington
Electricians set their own prices. Older homes may have knob-and-tube, ungrounded outlets and small services, often found during renovations.
- Interlock kit availability for your panel
- Inlet amperage (30 or 50 amp)
- Distance from panel to inlet
- Generator cord length and type
- Permit fees
Generator Interlock Kit Installation in Lexington: questions
Do I need a permit for generator interlock kit installation in Lexington?
Usually, yes. Lexington and Fayette County share a merged urban county government, and electrical permits come from its Division of Building Inspection. Kentucky licenses electricians through the state Department of Housing, Buildings and Construction. The electrician normally pulls the permit and schedules the inspection.
Is the utility involved in Lexington?
If the work affects the meter or service, the electrician coordinates with Kentucky Utilities (KU), which owns the meter and service drop.
Is an interlock kit legal?
Yes, when it is listed for your panel and installed with a permit; it is a recognized way to prevent backfeeding.
Interlock kit or transfer switch?
An interlock uses your existing panel and lets you pick circuits; a transfer switch has dedicated circuits or switches automatically with a standby generator.
What can a portable generator run?
Typically a furnace blower, refrigerator, sump pump, lights and a few outlets, depending on its wattage.
Where should the inlet go?
Outside, near a safe spot to run the generator, well away from doors, windows and vents.
Related help in Lexington
Generator Interlock Kit Installation in other cities
Need generator interlock kit installation in Lexington?
Call now and we connect you with a licensed electrician who serves your ZIP code.

