32kW 40kkVA Cummins Industrial Generator Set 4BT3.9-G1

Generator Set Specifications

Item	Specification
Product Name	32kW 40KVA Cummins Industrial Generator Set 4BT3.9-G1
Genset Model	TPD44C5-1
Engine Model	4BT3.9-G1
Engine Brand	Cummins
Series	DCEC Cummins
Prime Power	40 kVA / 32 kW
Standby Power	44 kVA / 35 kW
Frequency	50Hz
Rated Speed	1500 rpm
Voltage	400/230V
Phase / Wire	3 phase, 4 wire
Power Factor	0.8 lagging
Duty	Prime power
Application	Industrial diesel generator set
Controller Model	DSE7320 MKII recommended
Circuit Breaker	3-pole molded case circuit breaker
Cooling Package	Engine-mounted radiator and fan
Open Type Dimension	1900 x 750 x 1350 mm
Open Type Weight	750 kg
Silent Type Dimension	2250 x 1000 x 1540 mm
Silent Type Weight	1150 kg

Engine Specifications

Item	Specification
Engine Brand	Cummins
Engine Series	DCEC Cummins
Engine Model	4BT3.9-G1
Cylinder Arrangement	4L inline
Displacement	3.9 L
Bore x Stroke	102 x 120 mm
Fuel Consumption	10 L/h
Rated Speed	1500 rpm
Aspiration	Turbocharged
Cooling System	Water-cooled with radiator
Governor Type	Electronic governor
Fuel System	Direct diesel fuel injection
Starting System	24V DC electric start
Fuel Type	Diesel

Alternator Specifications

Item	Specification
Recommended Alternator Class	Stamford equivalent 40kVA brushless alternator
Alternator Rating	40 kVA prime / 44 kVA standby matched output
Alternator Type	Brushless synchronous alternator
Voltage	400/230V
Phase / Wire	3 phase, 4 wire
Frequency	50Hz
Rated Speed	1500 rpm
Power Factor	0.8 lagging
Rated Current	About 58 A at 400V, 3 phase
AVR	Automatic voltage regulator
Voltage Regulation	+/-1% under steady-state load
Insulation Class	Class H
Protection Class	IP23
Winding Pitch	2/3 pitch
Bearing Type	Single bearing
Coupling	SAE direct coupling

32kW 40KVA Cummins Industrial Generator Set 4BT3.9-G1 is suitable for farms, small factories, workshops, irrigation stations, telecom rooms, commercial buildings, and site backup power that need reliable 50Hz diesel generator set output.
The TPD44C5-1 configuration provides 40 kVA / 32 kW prime power and 44 kVA / 35 kW standby power, giving about 9% standby kW reserve for motor starting, pump loads, compressor loads, HVAC equipment, and emergency backup demand.
The Cummins 4BT3.9-G1 engine uses a 4-cylinder inline 3.9L platform, giving this 32kW generator set dependable displacement and load response for industrial power applications.
Fuel consumption is 10 L/h at rated output, equal to about 0.312 L/kWh at 32kW load; for an 8-hour working shift, diesel planning is about 80 L, helping customers estimate daily operating cost before purchase.
The open type generator set footprint is about 1.43 m2 with 750 kg weight, making it practical for generator rooms, equipment shelters, trailers, and industrial power systems.
The silent type generator set footprint is about 2.25 m2 with 1150 kg weight, giving customers a lower-noise Cummins generator set option for commercial backup power, outdoor standby power, farms, and construction sites.
Compared with choosing an oversized 50KVA generator set for a 20kW to 30kW working load, this 40KVA generator set can reduce equipment size, installation space, and fuel storage pressure while keeping standby reserve.
The recommended DSE7320 MKII DeepSea controller supports AMF auto-start, generator monitoring, shutdown protection, alarm display, and easier daily operation for customers who need automatic backup power during grid failure.
The 40kVA brushless alternator configuration with 400/230V, 3 phase 4 wire, 0.8 power factor, AVR voltage regulation, Class H insulation, and IP23 protection supports pumps, fans, compressors, lighting, HVAC, and general industrial loads.

Bespoke Manufacturing

Engineered to Your Exact Specifications

From standard backup power to complex multi-megawatt parallel systems, we customize every aspect of your generator set to ensure peak performance in your specific operational environment.

Open Skid Type

Standard configuration for indoor plant rooms. Features a heavy-duty fabricated steel base frame with built-in anti-vibration mounts.

Silent Canopy

Weatherproof and highly sound-attenuated (down to 65dB(A) @ 7m). Built with cold-rolled steel and fire-retardant acoustic foam.

Mobile Trailer

Single or dual-axle designs with mechanical/air brakes and lighting systems. Ideal for mining, construction, and rental applications.

Containerized

ISO standard 20ft/40ft containers for high-capacity units (500kVA+). Offers ultimate protection and simplifies global shipping.

Core Components

Alternator Upgrades

Partnering with Stamford, Leroy Somer, and Mecc Alte. We offer custom configurations including:

PMG Excitation System
IP44/IP55 Protection
Anti-condensation Heaters
Heavy-duty Winding

Intelligent Controllers

Equipped with Deep Sea (DSE), ComAp, or SmartGen modules, enabling advanced power management:

Remote SCADA Monitoring
Auto Mains Failure (AMF)
Multi-unit Synchronization
Cloud-based Diagnostics

Comprehensive Solutions

Beyond hardware, our engineering team provides end-to-end services to ensure your power system integrates seamlessly into your project.

Extreme Climate Prep

Engine water/oil pre-heaters for cold regions, and sand-proof louvers with heavy-duty air filters for deserts.

Parallel & Sync Systems

Design and manufacture of synchronization panels to run multiple generator sets in parallel for large loads.

Custom ATS Panels

Automatic Transfer Switches tailored to your grid voltage, ensuring seamless switching during power outages.

Testing & Certification

Rigorous Factory Acceptance Testing (FAT) with load banks. Support for CE, ISO9001, and SGS third-party inspections.

Open Type

Length (L)

1900 mm

Width (W)

750 mm

Height (H)

1350 mm

Dry Weight

750 kg

Silent Type

Length (L)

2250 mm

Width (W)

1000 mm

Height (H)

1540 mm

Dry Weight

1150 kg

Dimensional & Assembly (DA) Drawing

Available upon request

32kW 40kkVA Cummins Industrial Generator Set 4BT3.9-G1

Technical Data Sheet

Generator Set Specifications

Engine Specifications

Alternator Specifications

Engineered to Your Exact Specifications

Open Skid Type

Silent Canopy

Mobile Trailer

Containerized

Core Components

Alternator Upgrades

Intelligent Controllers

Comprehensive Solutions

Extreme Climate Prep

Parallel & Sync Systems

Custom ATS Panels

Testing & Certification

Open Type

Silent Type

Dimensional & Assembly (DA) Drawing

Before confirming this configuration

Get a Custom Quote

Request a quote

32kW 40kkVA Cummins Industrial Generator Set 4BT3.9-G1

Technical Data Sheet

Generator Set Specifications

Engine Specifications

Alternator Specifications

Engineered to Your Exact Specifications

Open Skid Type

Silent Canopy

Mobile Trailer

Containerized

Core Components

Alternator Upgrades

Intelligent Controllers

Comprehensive Solutions

Extreme Climate Prep

Parallel & Sync Systems

Custom ATS Panels

Testing & Certification

Open Type

Silent Type

Dimensional & Assembly (DA) Drawing

Before confirming this configuration

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Get a Custom Quote

Request a quote