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-5110


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

  • Space between breaker columns: 1/2"
  • Gap between main breaker and breaker columns below: 1" or more
  • 100-125 amp main breaker
  • Main breaker toggle action: horizontal (left-right) throw direction ON & OFF
  • Main breaker centered over both breaker columns
  • Compatible with: QO breakers


  • Install a two pole generator breaker in the top two spaces of the right column: spaces 2 & 4
  • Page four of the installation instructions includes a list of contents included in Kit K-5110

Kit Installation Instructions

Additional information

Weight 1 lbs
Catalog #:

QO124M100PC, QO11624L125GRB, QO120M100C, QO120M100RB, HOM1224M100PC, HOM2040M100PRB, HOM1224L125PC, QOC32UF, HOMC20M100C, HOMC21UC, QOC12U, HOMC24UC – other compatible catalog #'s may not be listed here yet. Use the details listed in "Description" to help match your kit!