Cummins C28D5

Cummins C28D5

Standby:
27.5 kVA
Voltage:
380‑415 V
Prime:
25 kVA
Frequency:
50Hz
Engine:
Cummins X2.5‑G2
Amps Per Phase:
39.6
Alternator:
Stamford S0L2‑P1
Control Panel:
Cummins PowerStart 0600

The Cummins C28D5 is a compact and powerful 28 kVA silent diesel generator built for reliable three‑phase standby and prime power applications.

Equipped with the Cummins X2.5‑G2 naturally aspirated 3‑cylinder engine operating at 1 500 rpm, it delivers a prime rating of 25 kVA (20 kW) and standby rating of 27.5 kVA (22 kW). The Stamford S0L2‑P1 brushless alternator ensures stable output with ± 1% voltage regulation and droop frequency control. The PowerStart 0600 control panel provides automatic start/stop, robust metering, fault diagnostics, and AMF capability.

Designed for silent operation under enclosed or open configurations, the C28D5 features a large 150 L base fuel tank, low noise canopy (~77 dB(A) at 1 m), and meets ISO, CE standards. It’s ideal for commercial, industrial, and data center usage.

Engine Specs

Engine Model
X2.5‑G2 (3‑cyl, naturally aspirated)
Rated Speed
1 500 rpm
Bore × Stroke
91.4 × 127 mm
Compression Ratio
18.5 : 1
Lube Oil Capacity
7.3 L
Overspeed Limit
1 725 rpm

Alternator Specs

Model
Stamford S0L2‑P1
Insulation Class
H
Voltage Regulation
± 1 % (no load to full load)
Frequency Regulation
Droop
Random Frequency Variation
± 0.25 %

Control Panel Specs

Controller Model
PowerStart 0600
Display
LCD with LED indicators
Functions
Auto/manual start, metering, fault annun., AMF, remote start
Starting Voltage
12 V DC

Fuel & Consumption

Fuel Tank Capacity
150 L
Fuel Consumption @Full Load
≈ 6.5 L/hr (standby) / 6.0 L/hr (prime)

Cooling & Air

Coolant Capacity
≈ 7 L (with radiator)
Combustion Air Flow
2.30 m³/min
Ambient Rating
50 °C

Exhaust

Exhaust Temp
660 °C
Max Back Pressure
3.38 kPa

Dimensions & Weight

Open Set (L×W×H)
1 667 × 930 × 1 282 mm
Enclosed Set (L×W×H)
2 082 × 987 × 1 524 mm
Dry Weight (Open)
≈ 694 kg
Dry Weight (Enclosed)
≈ 716 kg

Standards & Accessories

Voltage Regulation
± 1 %
Governor Type
Mechanical
Certification
ISO, CE/UKCA
Optional Extras
Coolant heater, battery charger, ATS, extended fuel tank
Warranty
2 years or 500 h standby / 1 year unlimited prime

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Cummins C28D5 Silent Diesel Generator