Send us a quick message!
Call for guaranteed low pricing and quantity discounts!
Prime Rating: 12 kW (12 kVA)
Standby Rating: 13 kW (13 kVA)
60 Hertz, 3600 RPM
Single Phase, 1.0 Power Factor
120V - 50A (2 sets)
240V - 50A

| Performance Data | ||
| Prime Rating | 12 kW | |
| Standby Rating | 13 kW | |
| Generator RPM | 3600 | |
| Voltage - Single Phase | 120/240 V | |
| Generator Design | Revolving field, Self-ventilated, Drip-proof, Single bearing | |
| Voltage Regulation (No Load to Full Load) | ±0.5% | |
| Power Factor | 1.0 | |
| Armature Connection | Series | |
| Excitation | Brushless with AVR | |
| No. Poles | 2-pole | |
| Frequency | 60 Hz | |
| Frequency Regulation (steady state load) | ±3-5% | |
| Sound Level (Full Load at 23 ft.) | 68 dB(A) | |
Notice: Features and equipment specifications are subject to change without notice.
![]()

![]()
Standard Features:
![]()
Optional Features:
![]()
Control Panel Instrumentation:
![]()
| Generator Specifications | |
| Type | 2-Pole, revolving field, self ventilated, drip-proof, single bearing |
| Excitation | Brushless with AVR |
| Number of Leads | 4 Leads |
| Frequency | 60 Hz |
| Insulation | Class F |
Generator RPM |
3600 |
| Power Factor | 1.0 |
| Armature Connection | Series |
| Voltage Regulation | ±0.5% |
| Sound Level dB(A) | 68 |
| Engine Specifications | |
| Make | Kubota |
| Model | D902 |
| Emissions | EPA Tier 4 Certified |
| Design | 3 Cylinder, 4-cycle, water cooled, Swirl Chamber |
| Displacement | 898cc |
| Bore | 2.83 in. (72 mm) |
| Stroke | 2.89 in. (73.6 mm) |
| SAE Gross Horsepower | 24.8 hp |
| Starting System | Electric |
| Battery | 12V 45Ah x 1 |
| Oil Capacity | 0.95 gal (3.6 L) |
| Coolant Capacity | 0.92 gal (3.5 L) |
| Fuel System | |
| Fuel Tank Capacity | 13.5 gal (51.1 L) |
| Diesel Fuel at % of Load | gal/hr (L/hr) |
| 100% | 1.4 (5.2) |
| 75% | 1.1 (4.4) |
| 50% | 1.0 (3.8) |
| 25% | 0.8 (3.1) |
| Weights and Measurements | |||
| Housing (mm) | A |
B |
C |
56 in (1422) |
34 in (863) |
28 in (711) |
|
| Appx. Dry Weight | 858 lbs (389 kg) |
||
| Appx. Wet Weight | 964 lbs (437 kg) |
||
| Max. Lifting Capacity | 1,600 lbs (735 kg) |
||
![]()
Kubota Engine:
24 months or 2000 hours from date of purchase (whichever occurs first).
Generator:
24 months or 2000 hours from date of purchase (whichever occurs first).
Trailer:
12 months excluding normal wear items.
![]()
Generator is not intended for use in enclosed areas or where free flow of air is restricted.
Backfeed to a utility system can cause electrocution and/or property damage. Do not
connect to any building’s electrical system except through an approved device.
Specifications are subject to change without notice.
![]()
WhisperWatt TLG12SPX Spec Sheet