BAUDOUIN APD550BD Diesel Generator – 50Hz
The Aksa APD550BD Diesel Generator is a 550 kVA standby / 500 kVA prime power generator powered by a Baudouin 6M21G550/5 diesel engine. Designed for reliable 400/231V, 50Hz three-phase power, it features ECU governing, Aksa AK 6400 brushless alternator technology, DSE 7320 AMF control, and durable construction for commercial and industrial standby power applications.
Brand: BAUDOUIN
Aksa APD550BD Diesel Generator ? 550 kVA Standby Power
The Aksa APD550BD Diesel Generator is a diesel generating set designed for reliable standby and prime power applications. Powered by a Baudouin 6M21G550/5 diesel engine, this generator provides dependable 400/231V, 50Hz three-phase power for commercial, industrial, and infrastructure use.
With a standby rating of 550 kVA / 440 kW and a prime rating of 500 kVA / 400 kW, the APD550BD is suitable for sites requiring dependable medium-to-high capacity backup power.
Key Features
- 550 kVA standby power and 500 kVA prime power
- Powered by a Baudouin 6M21G550/5 diesel engine
- 6-cylinder inline engine configuration
- Turbocharged and air-to-air aftercooled engine design
- ECU governor system for precise engine control
- High Pressure Common Rail fuel system
- Aksa AK 6400 alternator
- Class H insulation system
- SX440 Automatic Voltage Regulator
- Deep Sea Electronics DSE 7320 AMF control module
- Integrated fuel tank with 700 litre capacity
- Available in open type or MS 70 sound attenuated canopy configuration
Engine Specifications
| Engine Brand | Baudouin |
|---|---|
| Engine Model | 6M21G550/5 |
| Engine Configuration | 6-cylinder, inline |
| Engine Speed | 1500 rpm |
| Aspiration & Cooling | Turbocharged and air-to-air aftercooled |
| Total Displacement | 12.54 litres |
| Bore x Stroke | 127 x 165 mm |
| Compression Ratio | 15.2:1 |
| Standby Engine Power | 490 kW / 657 HP |
| Prime Engine Power | 450 kW / 603 HP |
| Governor System | ECU |
| Injection System | Direct injection |
| Fuel Pump Type | HPCR High Pressure Common Rail |
| Operating Voltage | 24 Vdc |
| Battery Capacity | 2 x 120 Ah |
| Charge Alternator | 70 A |
| Oil Capacity | 40 litres |
| Coolant Capacity | 25 litres engine only / 62 litres total |
| Cooling Fan Air Flow | 474 m?/min |
| Exhaust Gas Flow | 114.8 m?/min |
| Fuel Consumption at 100% Prime Load | 109.5 L/hr |
| Fuel Consumption at 75% Prime Load | 75.3 L/hr |
| Fuel Consumption at 50% Prime Load | 51 L/hr |
| Block Heater | 1 x 3000 W |
Power Ratings
| Voltage | Standby Power | Prime Power | Standby Current |
|---|---|---|---|
| 400/231 V | 550 kVA / 440 kW | 500 kVA / 400 kW | 794 A |
| Frequency | 50 Hz | ||
| Phase | 3 Phase | ||
| Power Factor | 0.8 | ||
Alternator Specifications
| Alternator Manufacturer | Aksa |
|---|---|
| Alternator Model | AK 6400 |
| Alternator Power | 500 kVA |
| Voltage | 400 V |
| Frequency | 50 Hz |
| Phase | 3 Phase |
| AVR | SX440 |
| Voltage Regulation | ?1% |
| Insulation System | Class H |
| Protection | IP22 |
| Rated Power Factor | 0.8 |
| Alternator Weight | 1393 kg |
| Cooling Air | 62.1 m?/min |
Control System
The APD550BD is equipped with an Auto Mains Failure control panel featuring the DSE 7320 control module. This system monitors mains supply and generator operation, automatically starting and stopping the generating set when required.
- DSE 7320 generator control and AMF module
- MODBUS communication support
- Main status and instrumentation LCD display
- Menu navigation buttons
- Mains and generator transfer buttons
- Status LEDs and fault alarm LEDs
- Static battery charger
- Control circuit fuses
- Emergency stop push button
- Control panel mounted on generator frame or output power terminal module
Monitoring Functions
- Generator voltage monitoring
- Generator current monitoring
- Generator frequency monitoring
- Engine speed monitoring
- Engine oil pressure monitoring
- Engine coolant temperature monitoring
- Battery voltage monitoring
- Running hours display
- Mains supply monitoring
- Generator output and load monitoring
Protection Features
- Low oil pressure protection
- High coolant temperature protection
- Over speed and under speed protection
- Under/over generator voltage protection
- Under/over generator frequency protection
- Battery voltage warning
- Charge failure warning
- Fail to start protection
- Fail to stop warning
- Emergency stop shutdown
- High and low fuel level alarm options
- Earth fault protection option
Dimensions and Fuel Tank Capacity
| Open Type Dimensions | 3187 x 1550 x 2040 mm |
|---|---|
| Open Type Fuel Tank Capacity | 700 litres |
| Canopy Model | MS 70 |
| Sound Attenuated Type Dimensions | 4434 x 1606 x 2496 mm |
| Sound Attenuated Type Fuel Tank Capacity | 700 litres |
Standard Specifications
- Heavy-duty water-cooled Baudouin diesel engine
- Radiator with mechanical fan
- Protective grilles for fan and rotating parts
- Electric starter and battery charge alternator
- Lead-acid starting batteries with cables
- Engine canopy
- Base frame with integrated fuel tank and anti-vibration mounts
- Flexible fuel system hoses
- Single-bearing Class H alternator
- Industrial exhaust silencer and flexible steel bellows supplied separately for open sets
- Control panel in corrosion-resistant sheet steel enclosure
- Polyester powder-coated control panel finish
Applications
The Aksa APD550BD is suitable for commercial buildings, industrial facilities, manufacturing plants, warehouses, healthcare facilities, telecom infrastructure, data centres, construction sites, farms, and emergency backup power systems where reliable diesel standby or prime power is required.
Optional Equipment
- Fuel-water separator filter
- Oil heater
- Anti-condensation heater
- Oversized alternator
- PMG excitation and AVR
- Main line circuit breaker
- Automatic synchronising and power control system
- Parallel operation system with mains
- Transition synchronisation system
- Remote control panel
- Remote annunciator panel
- Remote communication via modem
- Earth fault protection
- Charge ammeter
- Three or four pole contactors
- Three or four pole motorised circuit breakers
- Automatic fuel filling system
- Manual oil drain pump
- Electrical and mechanical fuel level sensors
- Weather protective or sound attenuated enclosure
- Motorised inlet and outlet louvers
- Maintenance tool kit
- 1500 / 3000 hours maintenance kit
- Low-temperature oil and antifreeze option
- Residential silencer
- Spark arrester silencer
- Critical silencer
- Catalytic converter
- ISO container option
- Galvanised canopy coating
- Marine-grade paint
The Aksa APD550BD Diesel Generator is built for reliable medium-to-high capacity power generation, combining Baudouin diesel engine technology, Aksa AK 6400 alternator performance, DSE 7320 AMF control, and durable construction for dependable standby and prime power applications.
| Standby KVA | 401-999 KVA |
|---|






