Cummins Power Generation A040C975
Cummins Power Generation A040C975
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Cummins OTEC400 - 400-Amp PowerCommand® Outdoor Automatic Transfer Switch



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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Ships in 3-4 Weeks
Factory items ship direct from the manufacturer. Shipping times vary.
Shipping Details
  • Free to Lower 48 States
  • Lift Gate Service Available - Free Lift Gate Learn More
*We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States
$51 / Month
With our 82 months 10.99% APR*
82 fixed monthly payments required.
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Lift Gate Service
All products weighing more than 100 lbs. ship via semi-truck. We recommend ordering the Lift Gate Service to safely lower the product to the curb. If you have a loading dock or forklift, you do NOT need a Lift Gate service. If you are a residential customer, you must have at least 2-4 able-bodied people present to unload the product. Learn More
Learn More Installation
Cummins OTEC400 - 400-Amp PowerCommand® Outdoor Automatic Transfer Switch
Cummins OTEC400 - 400-Amp PowerCommand® Outdoor Automatic Transfer Switch
Model: A040C975
How-To Articles




Amp Rating


Load Mgmt.

Not Compatible



  • 400-Amp Outdoor Automatic Transfer Switch
  • For use w/ Cummins Onan Liquid Cooled Standby Generators
  • Designed For Standard Installation
  • Requires a sub-panel for overload protection
  • PowerCommand® Microprocessor Controller
  • LEDs display mode, power source & transfer switch status
  • Easy-to-use pushbuttons activate control test, exercise time etc.
  • Exerciser Clock
  • Integral engine exerciser allows for 7, 14, 21 or 28-day cycle
  • Mechanical & Electrical Interlocking Design
  • Prevents source-to-source connection through power/control wire
  • Can Be Manually Operated In An Emergency
  • Allows effective manual operation under de-energized conditions
  • Corrosion-Resistant NEMA 3R Enclosure
  • Approved for indoor or outdoor installations
  • Lockable enclosure provides added security
  • Easy Service & Access
  • Door mounted controls, single-plug harness & field programmable
California residents see
Warning: This product can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size) which is known to the State of California to cause Cancer, and Lead which is known to the State of California to cause Developmental Harm.
For more information go to:


Product Specs
120/240 Single-Phase
60 Hertz
Rated Watts
96000 Watts
Rated Amps
400 Amps
Transfer Switch Style
Standard Installation
ATS Load Prioritizing
Not Compatible
ATS Load Shedding
Not Compatible
ATS Poles
2 Poles
ATS Service Disconnect
Max Utility Input
400 Amps
Max Generator Input
400 Amps
Maximum Wattage
96000 Watts
UL Listed
225 Pounds
Consumer Warranty
1 Year
Product Length
59 Inches
Product Width
27.5 Inches
Product Height
16.5 Inches


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Cummins OTEC400 - 400-Amp PowerCommand® Outdoor Automatic Transfer Switch
Cummins Power Generation A040C975
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