4b3.3 q range generator product

4B3.3 Q Range

Frequency (Hz) 50
Certification CE, UKCA
Rated for kW kVA
Standby 35-53 44-66
Prime 32-48 40-60


Agriculture Commercial Industrial Construction Healthcare Prime Power Residential Home Standby Small Business Standby Standby Power


This Cummins commercial generator set is a fully integrated power generation system, providing optimum performance, reliability, and versatility for Stationary Standby and Prime Power applications.

What makes the 4B3.3 special

The powerful, compact Cummins 4B3.3 combines amazing low noise performance with high efficiency – emissions are so low it achieves St3A standards. With more than 18h* runtime, autonomy is high too.
(*at 75% PRP).

Cummins has designed, engineered and manufactured the new Cummins 4B3.3 for adaptable power. Built in Europe to fully support its customers and their power needs.

Backed by powerful support

We start supporting you as soon as you contact us, with a Cummins expert dedicated to you and technical support all the way. Behind the 4B3.3 is a dedicated European sales team meaning faster delivery and greater availability to support your power needs.

Engine 4BTAA3.3-G14: 4 cycle, In-line, 4 cylinder diesel, turbocharged after-cooled
Bore 95 mm
Stroke 115 mm
Displacement 3.3 l
Cylinder block Cast iron, in-line, 4 cylinder 
Starting voltage 12 Volts DC
Fuel system Direct Injection
Standard cooling system 55 ºC ambient radiator with coolant recovery system
Alternator Stamford UC series, Brushless, 4 pole, single bearing, revolving field 
Controller PS0600, microprocessor-based , provides enhanced reliability and performance 
Battery capacity 75Ah
Fuel tank 200 l
Sound power level – LwA (enclosed) Measured: 92 dB(A)
Guaranteed: 95 dB(A)
Generator Model Hz Prime kVA / kW Standby kVA / kW Title
C44D5EQ 50 40 / 32 44 / 35 4B3.3 Q Range
C55D5EQ 50 50 / 40 55 / 44 4B3.3 Q Range
C66D5EQ 50 60 / 48 66 / 53 4B3.3 Q Range
  • Engine: Rugged 4 cycle industrial diesel 4B3.3 series delivers reliable power, low emissions and fast response to load changes.
  • Alternator: Stamford UC series Class H with low reactance 2/3 pitch windings
  • Controller: PS0600: simple operator interface with manual and remote start/stop control and shutdown fault indication  
  • Open and Enclosed: Versions available
  • Performance (LAT): Designed to work at high ambient temperature without derate
  • Fuel tank: 200 l with 110% spillage catchment guarantying up to 23h autonomy at 75% PRP*
    • *See product sheet for specific model autonomy
  • Emissions compliance: Stage IIIA
  • Lifting and logistics: Optimized handling and storage needs with single lifting point
  • Sound attenuated: Quiet in operation with just 92dBA sound power level and fully CE and UCKA compliant.
  • Paint: Enhanced APNR painting system
  • Optimized subsystems: Very simple to operate
  • Battery: Flooded/SLI technology battery
  • Battery charger: Included as standard equipment to ensure engine is always ready to start
  • Coolant heater: Included as standard equipment to ensure engine start during low ambient temperatures 
  • Easy to maintain: Easy service. Get it back in service faster, reducing downtime to a minimum
  • Cummins reliability: 
    • Performance you can depend on even at high altitudes and extreme temperatures
    • Extended coverage is available on the comprehensive worldwide warranty

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