40kVA, Single Phase, Standby Diesel Generator with Cummins Engine

Model No.: ED40CuYE-OPEN

The Cummins powered ED40CuYE-OPEN is a 40 kVA three phase standby diesel generator. Complete with Crossley SLG series single bearing, 4-pole, brushless alternator with a brushless, rotating field design and are self-excited with power derived from main output windings using the Automatic Voltage Regulator (AVR).

Welling and Crossley Cummins powered generating sets are fully integrated power generation systems that are stringently tested to provide optimum performance, reliability, and versatility for standby applications.


Alternator Model: Crossley SLG Series
Electric Power: Single Phase
Active Rating: 40 kVA at 0.8 pf (Standby)
Power: 32 kW
Voltage: 240 V
Frequency: 50 Hz


Engine Model: Cummins 4BT3.9G2
Engine Speed: 1500 rpm
Cylinder No.: 4TA
Cubic Capacity: 3.9 L
Bore / Stroke: 102 x 119 mm
Compression Ratio: 18.0 : 1
Aspiration: Turbocharged
Starter Voltage: 24 V
Flywheel ( Max. Continuous Power): 40 kW
Combustion Air Flow: 3.4 m³/min
Cooling Air Flow: 136 m³/min
Cooling System: Radiator Cooled
Heat Rejection to Cooling System: 32 kW
Exhaust Gas Flow: 8 m³/min
Exhaust Gas Temperature: 550°C
Fuel Type: Diesel
Fuel Tank Capacity: 120 L
Approx. Fuel Consumption (Continuous): 9.2 L/hr
Approx. Fuel Consumption (Standby): 10 L/hr


Dimensions (L x W x H): 1900 x 900 x 1500 mm (L x W x H)
Weight: 1050 kg

*Specifications are subject to change without notice

The control starting system is fitted standard.
Starting is remote or local to the machine with push Start/Stop button and includes the following digital indicators:

  • Oil Pressure
  • Engine Temperature
  • Frequency
  • Volts and Amps
  • Shut Down for low oil & temperature
  • Emergency stop button
  • Output circuit breaker
  • Static Battery Charger

The control system can also be configured to operate with an Automatic Transfer Switch with logic.

  • Heavy duty fabricated steel baseframe

The complete generating set is mounted as a whole onto a heavy duty fabricated steel baseframe. Anti-vibration pads are fixed between the engine and alternator feet, and the baseframe, ensuring complete vibration isolation of the rotating assembly.

  • Bunded Fuel Tank (AS 1940-2004 compliant)

The fuel tank is fully bunded and complies fully with relevant sections in AS 1940-2004. It has a secondary containment compound with a capacity as big or bigger than that of the tank, and is made of surface coated steel. This compound is designed to sufficiantly retain spillage and enable recovery of any spillage. For more information regarding AS 1940-2004 compliance refer to the standard, or contact us.

  • Battery Charger

This trickle charge battery charger ensures that your generator can start up when needed. It has both 12v and 24v charging capabilities.

  • Control Panel with Emergency Stop button

This control panel monitors the controls of a single unit to achieve automatic start/stop, data measuring/monitoring, alarm protection and three remote systems (remote control, remote measuring and remote communication). The controller adopts large liquid crystal display (LCD) and has a 32 bit micro-processor with precision parameters for measuring, fixed value adjustment, time setting and threshold adjustment.

  • Prime or Standby Power

Standby: kVA @ 0.8 pf These ratings are applicable for supplying continuous electrical power (at variable loads) in the event of a utility power failure. No overload is permitted on these ratings. Minimum output from alternators are peak continuous rated (as defined in 1SO 8528-3 @ 27°C. Annual hour limitation: 500 hours).

Prime (continuous): kVA @ 0.8 pf. (Divide standby rating by 1.1). Available for continuous electrical output. There is no hour limitation. 10% overload is available 1 hour in 12. The generating set and this specification is designed for environmental conditions of up to 27°C, up to 152.4 m above sea level and up to 60% relative humidity. Ratings at 0.8 pf.
For ratings outside this range, please contact us.

  • Additional Protection Alarms
  • Jacket Heater
  • Automatic Transfer Switch (ATS)
  • Trailer mounted
  • Load Banks
  • Auxiliary Fuel Tanks
  • Genuine Spare Parts
  • Special Builds Welcome!

Additional information