Cummins OTEC400, 400A Non-Service Rated Transfer Switch, 120/240V Single-Phase, NEMA3R | A066Y106

Cummins OTEC400 Transfer Switch, 120/240V Single Phase, NEMA3R Enclosure
$ 4,126.00

Cummins 400A Transfer Switch, OTEC Series, 120/240V Single-Phase, Non-Service Entrance Rated, NEMA3R Enclosure - OTEC transfer switches are designed for operation and switching of electrical loads between primary power and standby generator sets.  They are suitable for use in emergency, legally required, and optional standby applications.  The switches monitor both power sources, signal generator set startup, automatically transfer power, and return the load to the primary power source once a stable utility is available.

The fully integrated controller is designed for practical functionality, with LED indicators and digital pushbuttons for ease of operator use.


  • Easy Service/Access - Plug connections, door-mounted controls, ample access space, compatible terminal markings simplify access.
  • Microprocessor Control - Fully-featured PowerCommand® 40 microprocessor control is standard with all features, settings and adjustments software-enabled for ease of setup and accuracy.
  • Advanced transfer switch mechanism - Bi-directional linear motor actuator provides virtually friction-free, constant-force, straight-line transfer switch action with no complex gears or linkage.
  • Manual operation - Manual operating handles, shielded termination, and over-center contact mechanisms allow effective manual operation under de-energized conditions.
  • Positive Interlocking - Mechanical and electrical interlocking prevent source-to-source connection through the power or control wiring.






120/240V Single-Phase




Non-Service Entrance Rated


Automatic Transfer Switch

Model OTEC400 A040C975