Interlock Kits & Transfer Switch Installation (Inspected & Code-Compliant)

Generator Installation in Kent & Sussex County, Delaware

Power outages in Kent and Sussex County are common during coastal storms, high winds, and winter weather.
If you own a portable generator, the most important decision isn’t the generator itself — it’s how you connect it safely to your home.LR Electrical LLC provides professional generator interlock kit and transfer switch installation throughout:

Safe Generator Connection Installation

Improper generator connections are one of the most dangerous electrical hazards we see.
We install:
30-amp generator systems
50-amp generator systems
Interlock kits
Manual transfer switches
Exterior generator inlet boxes
Every installation is designed to:
✔ Prevent backfeeding
✔ Protect utility workers
✔ Meet Delaware electrical code
✔ Pass third-party inspection

The 2 Most Dangerous Generator Mistakes

Using Multiple Extension Cords

Extension cords are a temporary emergency solution — not a safe permanent setup.
Risks include:
Overloaded cords
Fire hazards
Voltage drop
No breaker protection
Limited circuit access

Backfeeding Without an Interlock or Transfer Switch

Plugging a generator into a dryer outlet or backfeeding a panel without a proper safety device is illegal and extremely dangerous.
It can:
Send power back to utility lines
Electrocute line workers
Damage your panel
Void insurance coverage
Fail required inspection
A properly installed interlock kit or transfer switch prevents this hazard completely.

30-Amp vs 50-Amp Generator Systems

30-Amp System

Best for:
Refrigerator
Sump pump
Basic lighting
Essential outlets
Ideal for smaller homes needing limited backup.

50-Amp System

Best for:
Larger homes
Well pumps
Kitchen circuits
Garage circuits
More flexibility during outages
A 50-amp system is the most common
installation we perform in Kent and Sussex County.

Interlock Kit vs Transfer Switch Installation

Interlock Kit Installation (Most Popular)

An interlock kit mounts directly onto your existing electrical panel and mechanically prevents the main breaker and generator breaker from being on at the same time.

Benefits
Cost-effective
Clean appearance
Full panel flexibility
Faster installation (2–4 hours)
Important: Some older panels cannot safely accept an interlock kit. If so, a panel upgrade may be required.

Manual Transfer Switch Installation

A transfer switch is installed next to your electrical panel. Selected circuits are rewired into the switch.
Benefits:
Dedicated circuit control
Easier load management
Compatible with more panel types
Because circuits must be re-routed and re-terminated, installation requires more labor (4–6 hours).

Generator Installation Cost in Kent & Sussex County

50-Amp Interlock Kit Installation

Typical range:
$1,400 – $1,700
Includes:
50A breaker
Exterior 50A inlet box
Up to 25 ft of 6/3 copper wiring
Panel mounting hardware
Clear circuit labeling
System testing
Coordination with required third-party inspection

50-Amp Manual Transfer Switch Installation

Typical range:
$1,800 – $2,400
Includes:
Separate switch panel
Circuit re-routing
Additional wiring
Extended installation time
Testing and labeling
Transfer switch installations require more labor and materials, which explains the higher cost.

When a Panel Upgrade May Be Required

Some older electrical panels:
Are incompatible with interlock kits
Lack breaker space
Are discontinued or unsafe
If needed, we will explain options before moving forward.

Financing Available

We offer financing through Wisetack to help homeowners install generator connection systems without large upfront payments.
Ask us about available payment options during your estimate.

Why Homeowners in Kent & Sussex County Choose LR Electrical LLC

✔ 123+ Five-Star Reviews
✔ Licensed & Insured in Delaware
✔ Experienced in Generator Safety Installations
✔ Clean, Professional Work
✔ Transparent Pricing
✔ Third-Party Inspected Installations
We focus on safe, professional generator hookups that protect your home long term.

Frequently Asked Questions.

How much does generator installation cost?

Most 50-amp interlock installations range from $1,400–$1,700. Transfer switches typically range from $1,800–$2,400.

Do I need a permit?

Installations must be inspected by a third-party agency to meet Delaware electrical code.

Is an interlock kit safe?

Yes, when installed properly and inspected.

Can I install a generator without a safety device?

No. Backfeeding is dangerous and illegal.

Schedule Generator Installation in Kent or Sussex County

If you’re preparing for storm season or recently purchased a portable generator, now is the time to install a safe, code-compliant connection system.