70 kVA
66 kVA
66 kVA Three Phase Silent Diesel Generator
66 kVAThree PhaseDiesel4BTAA3.9-G2
A 66 kVA three-phase silent diesel generator on a turbocharged aftercooled Cummins engine. A common specification for clinics, medium retail centres and light industrial units. Aftercooling improves efficiency and reduces thermal load, which matters on sites that run for extended periods.
Explore related ranges: silent diesel generators and Cummins generators.
R 179 300
Excl. VAT
In stock — delivery 3–5 working days
- Nationwide delivery, offloaded and positioned
- SANS 10142-1 compliant installation available
- Certificate of Compliance issued on handover
- 12-month warranty · genuine parts held in stock
Full specification
All values are rendered as crawlable text, never hidden inside tabs.
Ratings
| Prime power | 66 kVA |
|---|---|
| Standby power | 73 kVA |
| Output | 52.8 kW |
| Phase | Three Phase |
| Voltage | 230/400 V |
| Frequency | 50 Hz |
| Power factor | 0.8 |
Engine
| Brand | Cummins |
|---|---|
| Model | 4BTAA3.9-G2 |
| Cylinders | 4 |
| Displacement | — |
| Aspiration | Turbocharged aftercooled |
| Cooling | Radiator and fan |
| Rated speed | 1500 rpm |
Alternator
| Brand | Mecc Alte |
|---|---|
| Voltage regulation | ± 1% |
| Insulation class | H |
| Protection | IP23 |
Control panel
| Controller | Deep Sea DSE6020 |
|---|---|
| AMF / ATS | Included |
| Transfer time | 10–15 s |
| Remote monitoring | Optional |
Fuel & running
| Tank capacity | 350 L (bunded) |
|---|---|
| At 50% load | 7.7 L/h |
| At 75% load | 11.3 L/h |
| At 100% load | 14.5 L/h |
| Runtime at 75% | ≈ 31 hours |
Physical & compliance
| Dimensions | 3250 × 1100 × 1800 mm |
|---|---|
| Dry weight | 975 kg |
| Noise level | 72 dB at 7 m |
| Canopy | Silent, weather-resistant, lockable |
| Warranty | 12 months |
What this generator will run
Indicative loads at 66 kVA / 52.8 kW.
- Lighting & small power circuits5 kW
- Commercial refrigeration & cold room12 kW
- HVAC — packaged units15 kW
- Three-phase motors (largest 15 kW)10 kW
- Passenger lift7 kW
- IT, servers & comms4 kW
Running costs at a glance
Adjust the diesel price to match your area.
R
- Consumption at 75% load
- 11.3 L/h
- Cost per hour
- R 265,55
- Cost per 8-hour day
- R 2 124,40
- Cost per month at 4 h/day
- R 23 368,40
Indicative only. Actual consumption varies with load profile, altitude and ambient temperature. Reference full-day cost at 8 h: R 2 124,40; continuous shift month ≈ R 46 736,80.
Frequently asked questions
Answers are plain text on the page for search engines and buyers alike.
What will a 66 kVA generator actually run?
At about 52.8 kW of prime power, this unit covers mixed commercial loads — lighting, HVAC packages, refrigeration, lifts and IT — provided the largest motor starts are within the set’s surge capacity. We size final selections against your measured or estimated load profile.
Is installation included with the 66 kVA Three Phase Silent Diesel Generator?
Supply can be unit-only or turnkey. SANS 10142-1 compliant installation, AMF integration and a Certificate of Compliance on handover are available nationwide. Ask for a site-specific quote.
How noisy is the silent canopy?
This set is rated at approximately 72 dB(A) at 7 m under standard test conditions. Site layout, barriers and load profile affect the figure you hear on the ground.
What warranty and parts support do I get?
Standard cover is 12 months. Genuine Cummins and alternator parts are held for common service intervals, with regional breakdown response across Southern Africa.
Can I finance or lease this generator?
Yes. We work with asset-finance partners on outright purchase, lease and rent-to-own structures for qualifying businesses. Procurement and tender packs are available on request.
More from the range
Related generators
60 kVA
60 kVA
60 kVA Three Phase Prime Power Silent Diesel Generator
Three PhaseDieselPerkins
In stock
R 156 000
Excl. VAT
60 kVA
60 kVA Three Phase Trailer Mounted Diesel Generator
Three PhaseDieselPerkins
Lead time 4 weeks
R 218 000
Excl. VAT