JCB G45 QS
The JCB G45QS is a compact professional-grade diesel generator set designed to provide prime and standby electrical power for construction sites, manufacturing and warehouse facilities, service areas, engineering infrastructure and other commercial applications.
The generator provides up to 44.8 kVA / 35.8 kW of standby power and approximately 41 kVA of prime power at 50 Hz. Its compact dimensions, integrated fuel tank and QS sound-attenuated enclosure make the generator particularly suitable for operation directly on construction and industrial sites.
The JCB G45QS can be used as an emergency standby power source in the event of a mains failure or as a prime power source at locations where permanent utility power is unavailable.
- Technical specifications
- Additional information
| Type | Diesel generator |
| Standby rating | 44.8 kVA / 35.8 kW |
| Prime rating | 40.7 kVA / 32.5 kW |
| Rated frequency | 50 Hz |
| Voltage | 230–400 V |
| Engine speed | 1500 rpm |
| Displacement | 11.3 L |
| Fuel tank capacity | 81 L |
| Fuel consumption at 100% load | 9.68 L/h |
| Fuel consumption at 75% load | 7.86 L/h |
| Fuel consumption at 50% load | 5.64 L/h |
| Total coolant capacity | 7.60 L |
| Fuel type | Diesel |
| Dimensions (L*W*H) | 2250*840*1350 mm |
| Maximum dry weight | 1000 kg |
The JCB G45QS combines compact dimensions, fuel efficiency and sufficient output for a wide range of electrical equipment. It can supply power to electric tools, pumps, lighting systems, engineering equipment, temporary site facilities, administrative buildings, small production equipment and other electrical consumers.
The integrated 77-litre fuel tank supports extended autonomous operation without frequent refuelling. JCB specifies fuel consumption of 7.06 L/h, helping operators accurately plan fuel requirements and generator operating costs.
A key advantage of the model is its QS (Quiet Series) sound-attenuated configuration. The enclosure incorporates high-density sound-absorbing material, lockable maintenance access doors and a control-panel viewing window. The current JCB specification lists a noise level of 66 dB(A).
For convenient operation and servicing, the generator features a Deep Sea Electronics control panel, central lifting point, fork pockets, integrated bunded fuel tank and easy access to routine service points. These features simplify transportation around the site, installation and scheduled maintenance.
The JCB G45QS is a practical solution for construction, industrial and infrastructure applications requiring a compact, mobile and efficient source of prime or standby electrical power.
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