Cummins C550D5QB
- Standby:
- 550 kVA
- Voltage:
- 400 V
- Prime:
- 500 kVA
- Frequency:
- 50Hz
- Engine:
- Cummins M15‑G8
- Amps Per Phase:
- 792
- Alternator:
- Stamford S5L1S‑D4
- Control Panel:
- Cummins PowerCommand 2.2
The Cummins C550D5QB Q‑Range generator delivers 550 kVA (440 kW) standby and 500 kVA (400 kW) prime power at 50Hz. Powered by the Cummins M15‑G8 turbocharged, charge‑air cooled engine and a Stamford S5L1S‑D4 alternator with ±1 % voltage regulation.
Controlled by the PowerCommand 2.2 microprocessor system for auto start/stop, diagnostics, protection, and full metering. Enclosed in a sound‑attenuated, weatherproof canopy compliant with CE/UKCA. Optional extras include extended fuel tank (995 L), battery charger, coolant heater, and ATS.
Engine Specs
Engine Model
M15‑G8 (inline‑6, turbocharged & charge‑air cooled)
Rated Speed
1500 rpm
Bore × Stroke
130 × 163 mm
Compression Ratio
17 : 1
Lube Oil Capacity
≈ 75 L
Governor Type
Electronic (PGI)
Alternator Specs
Model
Stamford S5L1S‑D4
Insulation Class
H
Voltage Regulation
± 1 %
Frequency Regulation
Isochronous control
Control Panel Specs
Controller Model
PowerCommand 2.2
Display
LED + LCD metering
Functions
Auto/manual start, AMF, diagnostics, metering
Starting Voltage
24 V DC
Fuel & Consumption
Fuel Tank Capacity
995 L (base tank)
Fuel Consumption @ Full Load
≈ 91.8 L/hr
Cooling & Air
Combustion Air Flow
≈ 31.7 m³/min (standby), ≈ 29 m³/min (prime)
Ambient Rating
50 °C
Exhaust
Guaranteed Sound Power Level (Enclosed)
106 dB(A)
Sound Pressure Level at 1 m / 7 m
≈ 85 / 75 dB(A)
Standards & Accessories
Certifications
Unregulated / CE / UKCA
Optional Features
Battery charger, coolant heater, extended tank, ATS
Warranty
2 years or 500 h standby / 1 year unlimited prime