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300 kVA

300 kVA Three Phase Silent Diesel Generator

300 kVAThree PhaseDieselNTA855-G1B

A 300 kVA three-phase silent diesel generator on the Cummins NTA855-G1B, one of the most widely supported industrial engines in Africa. Specified for full shopping centres, medium data centres and mine infrastructure. Deep Sea DSE6120 AMF panel with remote monitoring available.

Explore related ranges: 300 kVA generators, silent diesel generators and Cummins generators.

R 510 000

Excl. VAT

Lead time 5 weeks

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  • Nationwide delivery, offloaded and positioned
  • SANS 10142-1 compliant installation available
  • Certificate of Compliance issued on handover
  • 24-month warranty · genuine parts held in stock

Full specification

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Ratings

Prime power300 kVA
Standby power330 kVA
Output240 kW
PhaseThree Phase
Voltage230/400 V
Frequency50 Hz
Power factor0.8

Engine

BrandCummins
ModelNTA855-G1B
Cylinders6
Displacement6-cyl
AspirationTurbocharged aftercooled
CoolingRadiator and fan
Rated speed1500 rpm

Alternator

BrandStamford
Voltage regulation± 1%
Insulation classH
ProtectionIP23

Control panel

ControllerDeep Sea DSE6120
AMF / ATSIncluded
Transfer time10–15 s
Remote monitoringOptional

Fuel & running

Tank capacity600 L (bunded)
At 50% load34.9 L/h
At 75% load51.3 L/h
At 100% load65.7 L/h
Runtime at 75%≈ 12 hours

Physical & compliance

Dimensions4600 × 1700 × 2250 mm
Dry weight3550 kg
Noise level76 dB at 7 m
CanopySilent, weather-resistant, lockable
Warranty24 months

What this generator will run

Indicative loads at 300 kVA / 240 kW.

  • Lighting & small power circuits24 kW
  • Commercial refrigeration & cold room54 kW
  • HVAC — packaged units66 kW
  • Three-phase motors (largest 15 kW)45 kW
  • Passenger lift33 kW
  • IT, servers & comms18 kW

Running costs at a glance

Adjust the diesel price to match your area.

R
Consumption at 75% load
51.3 L/h
Cost per hour
R 1 205,55
Cost per 8-hour day
R 9 644,40
Cost per month at 4 h/day
R 106 088,40

Indicative only. Actual consumption varies with load profile, altitude and ambient temperature. Reference full-day cost at 8 h: R 9 644,40; continuous shift month ≈ R 212 176,80.

Frequently asked questions

Answers are plain text on the page for search engines and buyers alike.

What will a 300 kVA generator actually run?

At about 240 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 300 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 76 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 24 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

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