Thermo King 15kW Undermount Genset
The Thermo King undermount genset supplies the 440-480 volt, three-phase, 60 Hz power a refrigerated container needs while it is away from shore power. It bolts under a container chassis rather than clipping to the container itself, which keeps the front wall clear and the overall height down. Listed at $9,500.
Thermo King Undermount Genset Specifications
Output: 460/230 V AC, 3-phase, 60 Hz
Engine: Thermo King diesel, compliant with interim Tier 4 requirements
Weight: 1,480-1,495 lb depending on build
Fuel tank: 75 or 80 US gallons
Battery: 12 V, 925 cold cranking amps at 0°F
Controls: SG+ microprocessor controller with stable voltage control
Cooling: heavy-duty cooling system for sustained high-ambient operation
Safety: guarded rotating parts and enclosed electrical connections
Price: $9,500
Run Time From a 75-80 Gallon Tank
A 15 kW container genset burns roughly 0.7 to 1.1 gallons an hour depending on how hard the reefer is working — a frozen setpoint in a hot ambient sits at the top of that band, a chilled setpoint in mild weather at the bottom. On 75 to 80 gallons that is somewhere between three and four and a half days of continuous running, which comfortably covers a coast-to-coast drayage move without a refuelling stop.
Why Stable Voltage Control Matters
A reefer container’s control electronics are unforgiving about supply quality. A genset whose output voltage sags when the compressor starts and overshoots when it stops will eventually trip the container’s protection or damage its controls. The SG+ controller holds output within tolerance through those load steps, which is the difference between a genset that powers a reefer and a generator that merely produces electricity.
Applications
Reefer container drayage, port and intermodal haulage, and any operation whose chassis pool is dedicated to refrigerated work. If your containers move between chassis, a clip-on genset is the more flexible answer.
Freight
Ships on a flatbed with forklift loading; freight is quoted to your delivery ZIP code. Contact us for engine hours and availability.
