In stock items ship same day if ordered online before 12 EST

In stock items ship same day if ordered online before 12 EST

Interlock Kit K-9110 | Interlock Kit


364 in stock


Have a question or don’t see a kit for your panel? We make custom Interlock Kits for any panel or solar scenario – call (804) 531-3359 or Contact Us!

This Kit performs like a manual transfer switch for Square D electrical panels with the following features:

  • Space between breaker columns: 1/2"
  • Main breaker sits directly on top of the breaker stack in the RIGHT breaker column
  • 100-125 amp two pole breaker
  • Main breaker toggle action: horizontal (left-right) throw direction ON & OFF
  • Compatible with Square D QO Type breakers


  • Install a two pole generator breaker directly below the main breaker in spaces: 6 & 8
  • Page four of the installation instructions includes a list of contents included in Kit K-9110

Interlock Kits similar to this kit include: K-9010, K-9011, K-9210, K-9310, K-9410

Kit Installation Instructions

Compatible Breaker Box Catalog Numbers: QO612L100DF , QO816L100DF

Additional information

Weight 1 lbs
Catalog #:

QO612L100DF, QO816L100DF – other compatible catalog #'s may not be listed here yet. Use the details listed in "Description" to help match your kit!