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-4010/5


716 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 mounts to Siemens / ITE / Murray Fits pre/post March 2020 electrical panels and requires:

  • Space between breaker columns: 1/2"
  • Gap between main breaker and columns below, is: 7/8" - 1 1/2"
  • 150-200 amp main breaker
  • Main breaker toggle action: horizontal (left-right) throw direction ON & OFF
  • Main breaker offset from the center: 7/8 to the left
  • Fits new Plug on Neutral panels
  • Fits convertible main panels


  • Install a generator breaker at the top of the right column: spaces 2 & 4 (top two spaces in the right column)
  • Page four of the installation instructions includes a list of contents included in Kit K-4010/5


Additional information

Weight 1 lbs
Catalog #:

LC4040B1200,P3040B1200, PN40040B1200, PN4040B1200C, PN4040L1200Type 1, PN4040L1200C , G3040B1200 Type 1, G3040B1200CU Type 1, G3040L1200 Type 1, G3040L1200CU Type 1, LC3040B1200 Type 1, LC3040B1200CU Type, S4040B1200 Type 1, G4040B1200 Type 1, G4040B1200CU Type 1, G4040L1200CU Type 1, G4040L1200 Type 1, PN3040B1200, PN3040B1200C, PN3040L1200, PN3040L1200C, SN3030B1150, SN3040B1150
Other compatible catalog #'s may not be listed here yet. Use the details listed in "Description" to help match your kit!