Denyo DCA 45ESI – 45 kVA Super Silent Diesel Generator

The Denyo DCA-45ESI is a compact, super-silent diesel generator designed for continuous, reliable power on construction sites, rental fleets and standby applications. Delivering around 37 kVA prime output in a fully sound-proofed canopy, it combines low fuel consumption, very low noise (about 60 dB(A) at 7 m) and Denyo’s heavy-duty build quality.

The machine uses a turbocharged Isuzu BB-4JG1T industrial diesel engine matched to a brushless, AVR-controlled alternator for stable voltage and frequency, even under fluctuating loads. A large base fuel tank gives long run-time, while the compact footprint and forklift pockets make it easy to transport and position on site.

• Prime (continuous) output: approx. 37 kVA / 29.6 kW, 3-phase, 50 Hz

• Standby output: approx. 38.9 kVA

• Rated voltage: configurable 190–220 / 380–440 V, 3-phase, 4-wire, power factor 0.8 (lagging)

• Engine: Isuzu BB-4JG1T, 4-cylinder, water-cooled, direct-injection, turbocharged diesel

• Engine output: about 34.2 kW @ 1500 rpm (≈46.5 hp)

• Fuel tank capacity: 100 L

• Fuel consumption: roughly 6.8 L/h at 75% load (50 Hz), giving long run-time on a single tank

• Alternator: brushless, 4-pole, AVR-controlled, voltage regulation within approx. ±0.5%

• Dimensions (L × W × H): about 1900 × 880 × 1250 mm

• Dry weight: approx. 916 kg

• Sound level: around 60 dB(A) @ 7 m (50 Hz, high-speed no-load) – super-silent class

  Main features & benefits

  • Super-silent, low-vibration enclosure – meets strict noise regulations, ideal for residential or night-time work.

  • Denyo heavy-duty design – robust canopy, industrial Isuzu engine and high-grade alternator for long, reliable service in rental and construction environments.

  • Low running cost – efficient engine and generous 100 L tank reduce refuelling stops and operating cost.

  • Stable power quality – AVR-controlled alternator keeps voltage within a tight band, suitable for tools, pumps, lighting and many sensitive loads.

  • Easy transport & installation – compact footprint with forklift pockets and lifting points, ready for site or trailer mounting.

  • Parallel operation capability (series feature) – many DCA-series sets allow paralleling with matching units for temporary higher load demand (with appropriate paralleling equipment).