40 kVA
45 kVA
45 kVA Three Phase Silent Diesel Generator
45 kVAThree PhaseDiesel4B3.9-G2
A 45 kVA three-phase silent diesel generator on a Cummins 4B3.9-G2. Sized for medium retail, small clinics and light industrial units. A common step up where a 40 kVA set leaves too little headroom for motor starting current.
Explore related ranges: silent diesel generators and Cummins generators.
R 144 900
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
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Ratings
| Prime power | 45 kVA |
|---|---|
| Standby power | 50 kVA |
| Output | 36 kW |
| Phase | Three Phase |
| Voltage | 230/400 V |
| Frequency | 50 Hz |
| Power factor | 0.8 |
Engine
| Brand | Cummins |
|---|---|
| Model | 4B3.9-G2 |
| Cylinders | 4 |
| Displacement | — |
| Aspiration | Turbocharged |
| 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 | 140 L (bunded) |
|---|---|
| At 50% load | 5.2 L/h |
| At 75% load | 7.7 L/h |
| At 100% load | 9.9 L/h |
| Runtime at 75% | ≈ 18 hours |
Physical & compliance
| Dimensions | 2500 × 1000 × 1450 mm |
|---|---|
| Dry weight | 745 kg |
| Noise level | 70 dB at 7 m |
| Canopy | Silent, weather-resistant, lockable |
| Warranty | 12 months |
What this generator will run
Indicative loads at 45 kVA / 36 kW.
- Lighting & small power circuits4 kW
- Commercial refrigeration & cold room8 kW
- HVAC — packaged units10 kW
- Three-phase motors (largest 15 kW)7 kW
- Passenger lift5 kW
- IT, servers & comms3 kW
Running costs at a glance
Adjust the diesel price to match your area.
R
- Consumption at 75% load
- 7.7 L/h
- Cost per hour
- R 180,95
- Cost per 8-hour day
- R 1 447,60
- Cost per month at 4 h/day
- R 15 923,60
Indicative only. Actual consumption varies with load profile, altitude and ambient temperature. Reference full-day cost at 8 h: R 1 447,60; continuous shift month ≈ R 31 847,20.
Frequently asked questions
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What will a 45 kVA generator actually run?
At about 36 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 45 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 70 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.
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