Kohler KEP Service Entrance Rated Automatic Transfer Switches Wiring Diagrams (tp6919)

These Kohler KEP service-entrance rated ATS units sit between the utility feed and the building, usually in plant rooms, data centers, or commercial sites where power can’t go down. This wiring-diagram set is what I’d grab when I need to trace control wiring, verify power lugs, and confirm how the generator, utility, and load connections are supposed to be routed. If, for example, the switch won’t transfer back to utility after a storm, this is the document I’d use to follow the sensing circuits and interlocks and isolate whether the problem is in the harness, the controller connections, or a field-added retrofit.

Applications & Use Cases

• Trace conductor paths to verify correct routing after replacing or extending a harness.
• Match terminal labels and connector points when tying in a new generator or utility feed.
• Isolate nuisance trips or failure-to-transfer issues by continuity-testing suspect circuits.
• Confirm proper grounding and bonding points during installation or inspection.
• Check compatibility and pin logic when adding monitoring, remote start, or retrofit controls.

FAQ

Q: Can I use this on a tablet at the switchgear room?

A: Yes, but I’d keep a zoomable PDF handy so you can enlarge terminal labels and wire tags on-site.

Q: Should I still print it if I have it on my phone?

A: For real troubleshooting, a clean printed copy is easier to mark up while you test and verify circuits.

Safety Note

Always de-energize and lock out all sources before opening the enclosure or handling any wiring.