Kubota Commercial Power Generators
Kubota KJ & SQ Series
Portable Commercial Power Generators
DEPENDABLE POWER
Brushless Alternator
This brushless, self-excitation type alternator is designed to be used in a wide variety of difficult starting conditions. Its Load Acceptance Module (LAM), enables the engine to accept larger load impacts and to regain its rated speed more quickly. Its convertable (50Hz) electronic regulator is powered independently from the voltage detection circuit, therefore regulation is not affected by distortions generated by the load.
Transistor Automatic Voltage Regulator (AVR)
All KJ Series generators are equipped with a transistor AVR to regulate a stable flow of current. In addition, any local condition can be matched by using the voltage adjustment.
Reduced Sound and Vibration
Kubota's low noise design features quieter engines with the TVCS combustion system, as well as sound attenuated enclosures which effectively reduce all sound levels. Integral vibrations have also been reduced by adding rubber isolating pads in critical areas.
INCREASED SAFETY
Automatic Shutdown Mechanism
Should any abnormality occur in oil pressure or water temperature, this mechanism automatically stops the engine before it can be damaged.
Emergency Unit
Kubota gathered the emergency relay, timer relay, and safety relay into one unit to save space, simplify the wiring scheme, and to improve protection against water, dust, and vibration. An external key switch is part of the standard control system for KJ-generators. In addtion, a manual engine shutdown lever is avaailable as an emergency backup.
Protective Design
All rotating parts of the generator have been enclosed in a sturdy cabinet for maximum operator safety.
Kubota's untiring quest for quality led to the development of a new line of heavy-duty 4-pole generators, the KJ Series. The power source is Kubota's own Super 03 Series diesel engines with emission levels far below the set standard according to CARB ULGE regulations. KJ Series ensure a much quieter, more efficient, and much longer service life anywhere you need fast safe and economical electrical power. Every generator in this series is designed, assembled, and tested to guarantee maximum performance and compatibility. KJ Series' alternator and the engine production plants have been approved and awarded ISO 9002 certification by Lloyd's Register Quality Assurance (LRQA). When the label reads Kubota, quality is assured.
EASE OF OPERATION & PORTABILITY
Convinient Front Panel Control
All switches and lamps are conveniently located in the center of the front panel for maximum accessibility.
Transportability Enhanced by Twin Point Lifting Eye
Twin point lifting eye makes it easy to transport all KJ Series generators.
SIMPLE MAINTENANCE
Ease of Access
Oil, fuel, water, and filters are all located on one side for easy maintenance.
Automatic Air Bleeding
Air bubbles which can rob the engine of its power are automatically removed from the fuel line.
Easy-to-Mount & Remove Battery Pack
The battery pack, loacted in the rear of the generator, can be easily removed through the back panel.
CLEANER, QUIETER AND MORE RELIABLE SUPER 03 DIESEL ENGINES
- Kubota's original TVCS combustion system improved air/fuel mixture, resulting in cleaner engine emissions which comply with US CARB ULGE regulations.
- Sound levels during load and no-load operations are kept to a minimum with Kubota's world renown diesel engine development technology and the superb TVCS combustion system.
- Super glow system comes as standard equipment to shorten preheating time and quicken engine start ups in cold temperature.
- Sturdy built Super 03 Series engines promise great reliability and long service life with advantages to meet most any application.
- In addition, the Super 03 Series is also designed against asbestos pollution.
| Kubota Model | KJ-S130V | KJ-S170F | KJ-T130D | KJ-T180V | KJ-T230F | |
| Generator | Type | Revolving field, self-generating brushless AC generator | ||||
| Frequency (Hz) | 50 | |||||
| Rated output (kVA) | 12.5 | 17 | 12.5 | 18 | 23 | |
| Rated output (kW) | 12.5 | 17 | 10 | 14.4 | 18.4 | |
| No. of phases | 1 | 3 | ||||
| Voltage (V) | 240 | 240 | 240 / 415 | 240 / 415 | 240 / 415 | |
| Amps | 52.1 | 70.8 | 17.4 | 25 | 32 | |
| Power Factor | 100 | 80 | ||||
| No. of Poles | 4 | |||||
| Rating | Continuous | |||||
| Insulation class | H | |||||
| Drive | Direct drive | |||||
| Engine | Type | Vertical, water-cooled, 4-cycle diesel engine | ||||
| Model | V2203 | F2803 | D1703 | V2203 | F2803 | |
| No. of cylinders | 4 | 5 | 3 | 4 | 5 | |
| Bore ラ stroke (mm) | 87ラ92.4 | |||||
| Total displacement (mm) | 2197 | 2746 | 1647 | 2197 | 2746 | |
| Revolutions per minute (rpm) | 1500 | |||||
| Continuous rated output (kW) | 23 | 28.7 | 17.2 | 23 | 28.7 | |
| Lubricating oil | API service class CC or CD 10W30 | |||||
| Oil capacity | 8.7 | 10.5 | 6.3 | 8.7 | 10.5 | |
| Coolant capacity | 7.9 | 9.4 | 6.9 | 7.9 | 9.4 | |
| Set | Fuel | Diesel No.2 | ||||
| Fuel tank capacity | 37 | 60 | 37 | 37 | 60 | |
| Fuel consumption | 4.6 | 6.2 | 3.4 | 4.7 | 6.3 | |
| Starting method | Electric | |||||
| Battery capacity | 70 | |||||
| Dimension (LラWラH) | 1518ラ650ラ971 | 1643ラ740ラ996 | 1423ラ650ラ971 | 1518ラ650ラ971 | 1643ラ740ラ996 | |
| Dry weight (Kg) | 505 | 630 | 470 | 505 | 600 | |
| Sound level @7m (dB) | 75 | 76 | 73 | 75 | 76 | |
| Emergency Stop Mechanism | In case of abnormal oil pressure or water temperature | |||||
| Security measures | Door, fuel cap, control panel protection and radiator cap are lockable | |||||
| Control Panel | A.C. Voltmeter | ァ | ァ | ァ | ァ | ァ |
| Frequency Meter | ァ | ァ | ァ | ァ | ァ | |
| A.C. Ammeter | ァ | ァ | ァ | ァ | ァ | |
| No Fuse Breaker | ァ | ァ | ァ | ァ | ァ | |
| Pilot Lamp | ァ | ァ | ァ | ァ | ァ | |
| Warning Lamp | ァ | ァ | ァ | ァ | ァ | |
| Main Switch | ァ | ァ | ァ | ァ | ァ | |
| A.C. Voltmeter Phase Selector | - | - | ァ | ァ | ァ | |
| Voltmeter adjuster | ァ | ァ | ァ | ァ | ァ | |
| A.C. Ammeter Phase Selector | - | - | ァ | ァ | ァ | |
| Hour meter | ァ | ァ | ァ | ァ | ァ | |
| Outlet 500V 3-Phase (32Amp) 5-PIN | - | - | ァ | ァ | ァ | |
| Outlet 250V Single Phase (15Amps) 3-PIN Flat | ァァァァ | ァァァァ | ァァァ | ァァァ | ァァァ | |
[ ァ Standard Feature, ゥ Optional Feature ]
SQ Series Features
- Liquid cooled Kubota, 1800-rpm diesel engines ensure long life, reliability, and low cost operation. Easy cold weather starting.
- Automatic safety shutdowns for high coolant temperature and low oil pressure. Load center and engine access doors equipped with safety interlocks.
- Single side servicing for ease of maintenance. Automatic air bleed fuel system. Convenient oil and coolant drain extensions.
- Brushless alternators with class H insulation reduce service and maintenance requirements.
- Excellent voltage regulation ± 1.5% no load to full load.
- Switchable voltage on SW models provides voltage and phase needed for your application at the flick of a switch.
- Covered load center contains GFCI, temporary power and other singlephase receptacles. Receptacles separate from terminals. Three phase terminal lugs accept pigtails or ring terminals.
- Conveniently grouped circuit breaker protection for all terminals and receptacles.
- Weather proof, sound attenuated enclosure features lockable panels to secure internal battery, base mounted fuel tank and other components. Allows for safe, unattended operation.
- Twin-point center lifting eyes, four tie-down points for easy transport.
- Skid or trailer mounted Forklift slots in base. Highway legal trailers with 50 gallon fuel tanks available.
| SQ1120-AUS | 11.2kVa,11.2kW, 240Volt AC, 4 pole 1500rpm,3 cylinder D1703 diesel engine, super quite 61dB |
| SQ1150-AUS | 15.0kVa, 15.0kW, 240Volt AC, 4 pole 1500rpm, 4 cylinder V2203 diesel engine, super quite 63dB |
| SQ3140-AUS | 14.0kVa, 11.2kW, 415/240Volt AC, 4 pole 1500rpm, 3 cylinder D1703 diesel engine, super quite 61dB |
| SQ3200-AUS | 20.0kVa, 16.0kW, 415/240Volt AC, 4 pole 1500rpm,4 cylinder V2203 diesel engine, super quite 63dB |
| SQ3300-AUS | 30.0kVa, 24.0kW, 415/240Volt AC, 4 pole 1500rpm, 4 cylinder V3300 diesel engine, super quite 64dB |











