40kW Diesel Generator Set

A 40kW diesel generator is priced by engine platform, configuration and alternator choice. At this rating H&C builds the Cummins R-DC50D5/S (4BTA3.9-G2 engine), rated 40 kW / 50 kVA prime and 44 kW / 55 kVA standby at 50Hz (1500 rpm). The price moves with the enclosure (open skid, soundproof canopy or containerized), the alternator (Stamford S1L2-R1 or Leroy-Somer TAL-A42-G for the R-DC50D5/S), the controller and options such as ATS, and with the destination country and freight terms. Send your voltage, frequency and destination country and we will confirm the R-DC50D5/S price within 24 hours.

At 75% load a 40kW diesel generator consumes 7.6 L/h; at 100% load it rises to 10.1 L/h. The 4BTA3.9-G2 engine in the R-DC50D5/S works out at 213 g/kW·h per ISO 3046-1. Actual consumption on the R-DC50D5/S varies about ±5% with ambient conditions, load profile and fuel quality. At a diesel price of $1.0/L, running at 75% load costs roughly $8 per hour.

A 40kW set is sized for small business and light-industrial backup: shops, restaurants, offices, telecom base stations and light construction tools. Standby is 44 kW / 55 kVA, which leaves starting margin for motor loads on top of the base load. Tell us your connected load and the largest motor you need to start and we will confirm whether 40kW or the next rating up fits better.

H&C supplies the 40kW rating on one engine platform: Cummins (R-DC50D5/S with the 4BTA3.9-G2 engine, 213 g/kW·h). Units ship as open skid, weatherproof silent canopy or 20ft/40ft container; the silent canopy for the R-DC50D5/S holds ≤75 dB(A) at 7m. All R-DC50D5/S units are built to 50Hz (1500 rpm) as standard, with custom controls and ATS available on request.