RST Electric delivers a high-capacity 300kW 380V Load Bank built for rigorous AC power system validation. Designed for large-scale generator testing, UPS commissioning, and industrial power applications, this 300kW 380V AC Load Bank offers precise resistive loading with advanced step control and multiple protection features. Its robust construction and forced air cooling enable continuous operation under full load, while the intuitive HMI and remote communication interfaces (RS485/Modbus) provide flexible control. Trust RST Electric for reliable, custom-engineered load bank solutions backed by years of manufacturing expertise. Request a quote today for tailored voltage and enclosure options.
The 300kW AC Resistive Load Bank from RST Electric is a heavy-duty testing instrument designed for demanding power validation environments. Operating at 380V AC (50/60Hz), this 300kW 380V Load Bank features a customizable step load configuration with a minimum increment of 5kW, enabling precise simulation of electrical loads. The unit integrates a high-accuracy CET PMC meter for real-time monitoring of key parameters including voltage, current, power, and frequency. Built with a cold-rolled steel chassis and automatic fan cooling, it ensures stable performance even during extended test cycles. Optional remote control via PC software or Modbus-RTU allows seamless integration into automated test systems. Ideal for power stations, data centers, and renewable energy projects, this load bank combines durability with advanced functionality.
Technical Specification
Model
300kW-380V
Model
300kW-380V
Load Type
Resistive
Rated voltage
AC380V 50/60Hz
Number of phases
3P4W
ResistivePower
300kW
Aux. Voltage
AC380VAC, 3P4W,50/60Hz
Load step
5kW*2+10kW*2+20kW+50kW*5
Min step load:5Kw
Load step is customizable
Protection
Short circuit protection, over-current protection, over-voltage protection, fan air volume protection, Over tempprotection
MeasurementParameters
Display basic functions such as voltage, current, active power, reactive power, apparent power, power factor, frequency, etc.
Cooling method
Forced air cooling, automatic load loading and automatic shutdown of the fan when the load stops
LoadingAccuracy
±3%
Chassis construction
Customized sheet metal chassis
Movement method
Support top lifting and bottom forklift transportation.
Working system
Continuous work
Noise
≤ 82dB,@3 meters
Air direction
Bottom in, Top out.
Display accuracy
0.5 class
Control mode
Local:HMI
Remote:PC software/RS485/Modbus-RTU
Dimension
W1150mm×D1300mm×H1650mm
Equipment material
Cold plate plastic spraying
Weight
About450kg
Color
Customized
Protection level
IP20
Meters
CET PMC-53AE-5925AXE
Other
European standard socket(16A)
Product Advantages
Our 300KW 380V Load Bank features high-precision loading capabilities, with a loading accuracy of ±3%. Coupled with precise step control, it can provide you with stable and reliable test data, meeting the precise requirements for various power equipment tests. We adopt a heavy-duty chassis design and equip it with industrial-grade components, which are sturdy and durable, effectively extending the equipment's service life and suitable for long-term continuous operation scenarios.
We incorporate multi-layer safety protection design in the product, which can effectively prevent various abnormal situations such as overload, overvoltage, and overheating, providing comprehensive safety and equipment integrity during the testing process. At the same time, the product supports Modbus-RTU, RS485 communication protocols and computer remote control, enabling automated testing, with convenient and efficient operation; it is locally equipped with an HMI human-machine interface, presenting clear and intuitive data display, with simple operation, which can significantly improve testing efficiency.
Application Scenario
In the power station and power grid field, the 300KW 380V Load Bank is an essential equipment for the commissioning and load testing of generators and grid-connected devices, ensuring the stable operation of the equipment. In data centers, it can verify the performance of UPS and the full-load reliability of backup power supplies, ensuring the safety of power supply in data centers. In renewable energy systems, it can be used to test solar inverters, wind turbine converter units, and energy storage inverters, helping to optimize the performance of new energy equipment. In the field of AC charging infrastructure, it can evaluate the performance of electric vehicle charging stations and AC sockets, ensuring charging safety. At the same time, it is also applicable to aircraft power systems and can be used for ground power device testing and various aerospace-related power testing scenarios.
Drawing and dimensions
About Package
Every 300kW 380V Load Bank from RST Electric is carefully packaged for international shipping. The unit is wrapped in waterproof film, secured with heavy-duty strapping, and placed in a custom wooden case designed to withstand the rigors of sea and air transport. Our commitment to professional packaging ensures your equipment arrives safely and on time, ready for deployment.
About RST Electric
We Are the Source Factory
● Direct Manufacturer based in China, ensuring competitive pricing and quality control.
● No intermediaries — you deal directly with the production team.
● Factory-direct advantages for all 300kW 380V Load Bank orders.
Professional Manufacturing
● Specialized in high-power 300kW 380V Load Bank and custom test solutions.
● State-of-the-art production lines with ISO-standard quality management.
● In-house R&D and three automated factories covering 7000+ square meters.
Global Supply Experience
● Proven Supplier to clients in USA, Europe, Southeast Asia, Middle East, and beyond.
● Deep expertise in generator, UPS, data center, and renewable energy testing.
If you have any enquiry about quotation or cooperation, please feel free to email or use the following inquiry form. Our sales representative will contact you within 24 hours.
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