Cummins 4BTA3.9-G2 45kW/56kVA 50Hz Diesel Generator Set

50Hz Cummins  45kW/56kVA  Diesel Generator Set

1. Technical Parameter

2. Core Product Features

The Cummins 4BTA3.9-G2 45kW/56kVA diesel generator set is a high-performance turbocharged medium-power power generation equipment upgraded on the basis of classic Cummins B-series engines. It adopts genuine Cummins turbocharged power core and high-standard brushless alternator configuration, balancing strong power output, stable operation and reliable quality. As a mainstream 56kVA turbocharged industrial diesel generator in the market, it is widely recognized in industrial standby, engineering temporary power supply and commercial emergency power guarantee fields, with comprehensive performance far exceeding ordinary same-power domestic generator sets.

2.1 Turbocharged Power Core, Strong Load Capacity

Equipped with the original 4BTA3.9-G2 inline four-cylinder water-cooled turbocharged engine, this unit adopts professional turbocharging technology to increase air intake volume and fuel combustion efficiency, bringing more sufficient power reserve than naturally aspirated models. The rated prime power reaches 45kW/56kVA, and the standby emergency power is up to 50kW/62kVA, which can easily cope with short-term peak load impact and variable load operation. Matched with a high-purity copper brushless self-excited alternator, equipped with H-grade ultra-high temperature resistant insulation material and IP23 dust and splash proof protection structure, the equipment will not experience voltage drift or frequency instability under long-term variable load conditions. The built-in high-precision AVR automatic voltage regulation system ensures stable 50Hz standard power output, which can support 24-hour continuous operation and frequent start-stop switching, fully adapting to harsh industrial working conditions.

2.2 Reasonable Fuel Consumption, Stable and Economical Operation

In terms of energy consumption control, the 4BTA3.9-G2 model has standardized and reasonable fuel consumption performance, with a full-load fuel consumption of 12.9L/H. Relying on BYC precision fuel supply pump and mechanical constant speed governor, the diesel atomization is uniform and combustion is fully utilized, avoiding invalid fuel waste caused by incomplete combustion. Compared with high-power generators with excessive fuel consumption and low-power equipment with insufficient power reserve, this45kW industrial backup generator has excellent cost performance in medium-power scenarios. For users who need long-term standby power, intermittent off-grid power supply and peak power regulation, its stable fuel consumption and durable operation can effectively control daily operating costs.

2.3 Brushless Maintenance-free Design, Low Failure Rate

The whole machine adopts advanced brushless self-excited power generation structure, completely abandoning the vulnerable carbon brush and slip ring parts of traditional brushed generators. This design fundamentally reduces mechanical wear and daily maintenance workload, realizing long-term maintenance-free operation in conventional working environments. The H-grade insulation effectively resists high-temperature aging, electrical breakdown and moisture erosion, greatly extending the service life of the alternator winding. The IP23 protection grade can isolate daily dust accumulation, debris invasion and light rain splash, adapting to indoor generator room fixed installation and outdoor simple awning placement. The integrated shock-absorbing base optimizes equipment vibration and operating noise, with compact overall structure and small footprint, convenient for installation, fixation and mobile transfer.

2.4 Complete Safety Protection, High Environmental Adaptability

This turbocharged Cummins emergency diesel generator is equipped with a full set of intelligent safety protection mechanisms, covering low oil pressure alarm, high water temperature shutdown, overload protection, overvoltage and undervoltage protection, overspeed protection and other functions. Once abnormal working conditions occur, the unit will automatically alarm and cut off power supply to avoid equipment burnout and safety accidents. The standard 24V DC electric start system has a high one-time start-up success rate, supporting manual start and automatic mains linkage switching operation. The optimized circulating water cooling system ensures stable heat dissipation in high-temperature working environments, and the Euro 2 emission standard ensures low exhaust emissions, meeting the environmental protection and safety operation requirements of industrial parks, commercial zones and rural construction scenarios.

3. Main Application Scenarios

With sufficient power reserve, stable performance and strong environmental adaptability, the Cummins 4BTA3.9-G2 56kVA diesel generator set covers industrial production, commercial supporting, field engineering, agricultural breeding and public facility emergency fields. It is a universal and reliable power supply equipment suitable formedium-power factory emergency power supply and outdoor engineering off-grid temporary power generation.

3.1 Small and Medium Industrial Production Sites

It is the preferred standby power equipment for machining workshops, packaging factories, food processing plants, plastic factories and small and medium-sized manufacturing enterprises. Industrial production has high requirements for power supply continuity and stability, and sudden mains power failure or power limitation will directly cause production line shutdown and economic losses. This 45kW medium-power turbocharged generator has strong load carrying capacity, which can quickly take over the power supply to ensure the normal operation of production equipment, workshop ventilation systems, water supply and drainage equipment and monitoring systems, effectively avoiding production interruption losses.

3.2 Commercial Complex & Office Supporting Scenarios

Suitable for large supermarkets, shopping malls, office buildings, hotel resorts, catering service centers and property communities. These commercial and residential supporting scenarios have dense electrical equipment and complex power consumption types. In case of peak power consumption tension, grid maintenance or sudden power outage, the unit can start up quickly and switch power supply automatically, ensuring the normal operation of lighting, central air conditioning, office equipment, elevator emergency power supply and fire control systems, maintaining uninterrupted commercial services and normal community operation.

3.3 Outdoor Field Engineering & Temporary Construction

For municipal road construction, bridge engineering, railway auxiliary construction, communication base station maintenance and field exploration projects without mains power coverage, this mobile turbocharged diesel generator set serves as the main power supply equipment. It features stable power output, strong anti-interference ability and convenient transportation and installation, which can meet the long-term power demand of medium-sized construction machinery, field office equipment and on-site monitoring devices, solving the power supply blank of outdoor off-grid operation.

3.4 Agricultural Breeding & Rural Off-grid Scenarios

It is widely used in large-scale livestock and poultry breeding farms, agricultural product processing bases, rural centralized workshops and remote rural areas with unstable power grids. Rural power grids are prone to voltage fluctuation, frequent power outages and power limitation in peak seasons. The unit can be used as daily standby and main power supply to ensure the continuous operation of breeding constant temperature equipment, ventilation systems, agricultural processing machinery and rural public lighting, avoiding livestock death and material waste caused by power failure.

3.5 Public Facility Emergency Backup Scenarios

It can be used as emergency backup power for township hospitals, community service centers, schools, fire control stations and environmental monitoring stations. In sudden power outage emergencies, the unit can respond quickly to provide stable power support for medical rescue equipment, teaching equipment, fire alarm linkage systems and environmental monitoring equipment, ensuring the normal operation of public basic facilities and guaranteeing regional public service safety and emergency response capacity.

4. Core Product Purpose

Positioned as ahigh-power-reserve Cummins turbocharged diesel generator, the 4BTA3.9-G2 model focuses on solving medium and high load power supply demands in multiple scenarios, with core purposes covering industrial emergency guarantee, off-grid main power supply, power grid peak regulation and public safety backup, featuring high practicability and wide scene compatibility.

First, it undertakes industrial and commercial mains power failure emergency backup power supply. It is mainly used to respond to sudden power grid outages, seasonal power limitation and grid maintenance power cuts in industrial parks and commercial areas, quickly take over power supply, avoid enterprise production shutdown and commercial service interruption, and provide reliable power safety guarantee for daily operation of enterprises.

Second, it serves as long-term prime power supply for off-grid and weak power grid areas. For remote rural areas, field operation bases, mountain engineering projects and areas with unstable grid voltage, the unit can operate continuously as the main power generation equipment, stably output 50Hz standard voltage, and meet the daily production, processing and living power demand of users.

Third, it realizes power grid peak shaving and auxiliary power supply. In summer and winter peak power consumption periods and regional power tension stages, the generator set can be started for auxiliary power supply to make up for the insufficient capacity of the mains power grid, effectively preventing equipment overload shutdown and production delay caused by power shortage.

Finally, it provides special industry safety emergency power guarantee. It supports uninterrupted emergency power supply for fire control systems, building elevators, medical emergency devices, environmental monitoring equipment and security monitoring systems in various scenarios, meeting the safety operation specifications of construction, medical, environmental protection and breeding industries.

5. Common FAQ

Q1: What is the difference between prime power and standby power of Cummins 4BTA3.9-G2 generator in actual use?

The 45kW/56kVA prime power is the long-term continuous operating power of the unit, supporting 24-hour uninterrupted operation and suitable for daily off-grid main power supply and long-term industrial standby power consumption. The 50kW/62kVA standby power is short-term emergency peak power, only applicable for temporary overload power supply in sudden power failure scenarios, and long-term operation under standby load is strictly prohibited. In actual engineering use, it is recommended to control the long-term operating load within 80% of the prime power, which can effectively reduce equipment wear, stabilize fuel consumption and prolong the service life of the 56kVA turbocharged diesel generator.

Q2: What are the advantages of 4BTA3.9-G2 turbocharged generator compared with same-power naturally aspirated models?

The biggest advantage of the 4BTA3.9-G2 model is the turbocharged power boost design. Compared with ordinary naturally aspirated generators of the same power, it has higher combustion efficiency, stronger instantaneous load response capacity and more sufficient power reserve. When encountering sudden load increase, it will not experience stalling or voltage drop. Meanwhile, the optimized fuel supply system makes the fuel combustion more fully, with more stable comprehensive fuel consumption. In addition, the turbocharged engine has stronger power performance in high-altitude and low-pressure environments, adapting to more complex working conditions, which is incomparable to naturally aspirated generator sets.

Q3: What working environments can the IP23 4BTA3.9-G2 generator adapt to?

Equipped with IP23 professional protection grade and H-grade high-temperature resistant insulation, this industrial generator has excellent environmental adaptability, working stably in the temperature range of -20℃ to +45℃. It is suitable for fixed indoor installation in factory generator rooms, commercial equipment rooms and community machine rooms, and also adaptable to outdoor temporary placement with rainproof and dustproof facilities. The IP23 protection structure can effectively resist daily dust accumulation, light rain splash and small particle invasion, fully meeting the open working conditions of construction sites, breeding farms and rural projects. It only needs to avoid long-term exposure to heavy rain immersion and strong corrosive gas environments to ensure long-term stable and trouble-free operation.