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Westinghouse Interlock Kits

These Westinghouse kits are specially made to work with the Westinghouse electrical panel on your home. Each kit acts just like a manual transfer switch, allowing you to connect your generator to your home’s electrical panel quickly and safely. Relative to regular transfer switches, our Interlock kits also take less time to install so you can expect to pay less for the installation. Not sure which kit is the right one for you? Call us. We’ll answer any questions you’ve got, and we’ll be happy to connect you to the right kit for your electrical panel.

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This Kit mounts to Siemens, GE, Square D, Cutler Hammer, Thomas & Betts, Challenger, Crouse-Hinds, and Westinghouse electrical panels; requires:

  • Horizontal (left-right) throw
  • Two two-pole breakers
  • Works in all four corners
Main: two-pole; generator: two-pole. Fits any feed-through panel with two double-pole 1" breakers.

Kit Installation Instructions
This Kit performs like a manual transfer switch for Westinghouse, Thomas & Betts, and Challenger electrical panels; requires:

  • Horizontal (left-right) throw
  • Two-handle breaker
  • Offset 1¼" left of center of breaker columns
  • Distance from columns: 1" (above)
Space between breaker columns: ½"; two panel spaces required for this Kit.

Kit Installation Instructions
This Interlock Kit mounts to Westinghouse, Thomas & Betts, and Challenger electrical panels and requires:

  • Vertical (up-down) throw
  • Four-handle breaker
  • Centered under both breaker columns
  • Distance from columns: 1¼" (below)
Space between breaker columns: ½"; two panel spaces required for this Kit.

Kit Installation Instructions
This Kit performs like a manual transfer switch for Westinghouse, Thomas & Betts, and Challenger electrical panels with the following features:

  • Vertical (up-down) throw
  • Two-handle breaker
  • Offset to the left of the breaker column
  • Distance from column: 4½" (above)
Single column of breakers; two panel spaces required for this Kit.

Kit Installation Instructions