Our products

Performance and Technical Specifications
 
Our liquid-cooled load banks are available in capacities ranging from 30 kW to 500 kW and can be scaled and combined to meet the requirements of your infrastructure. Compatible with both pure water and glycol, they ensure temperature control accuracy of ±0.5°C for reliable and reproducible test results.
 
Test before installation: no surprises during commissioning
 
Validating your cooling infrastructure before installing equipment is a best practice that many data centers adopt too late. Our liquid cooling load banks simulate the actual thermal load of your racks to test CDU units, chillers, and cooling loops under conditions that mirror real-world operation. Leaks, pressure drops, thermal inefficiencies—everything is identified early on, when addressing issues is still cost-effective.
 
Liquid-cooled load banks
 

The energy requirements of data centers are growing; newNew servers incorporate increasingly powerful CPUs and graphics cards, reaching power densities so high that air cooling is no longer sufficient to properly cool the racks. That is why, today, nearly 40 % of data centers have adopted liquid cooling technology in one form or another. Our liquid-cooled load banks enable you to meet these new requirements for testing and validating data center infrastructures under realistic conditions that accurately reflect actual operations.

3 key features of the line:

Quiet operation
No more heat emission
Reduced auxiliary power requirements

Secure your infrastructure before your servers arrive

Before installing servers and critical IT equipment, the reliability of the electrical and cooling infrastructure must be flawless. Commissioning using load banks is a key step in ensuring the future performance and availability of your data center. These full-scale tests validate electrical and thermal performance, identify potential risks, and ensure the safety of the facilities before integrating sensitive, high-value equipment. The result: a data center that is ready to operate and reliable from day one.

3 key features of the product line:
– Testing as close as possible to the servers’ final location
– Ease of implementation
– Flexibility and scalability

Our data center solutions

For data centers that combine liquid and air cooling, our rack-mount load banks work in conjunction with our liquid-cooled load banks. For projects with specific requirements, check out our custom load banks as well.

Resistive load bank: How does it work?
 
A resistive load bank converts electrical energy into heat via resistors, thereby simulating a purely active load. This is the industry-standard solution for testing equipment with a predominantly resistive load: generators, UPS systems, and backup power supplies. Easier to implement than a resistive-reactive bench, it meets the vast majority of testing needs in industrial and commercial settings.
 
What type of test is this for?
 
Delta-Resistel resistive load banks are used at three key stages: during commissioning to verify the actual performance of the equipment; during routine maintenance to ensure that generators and UPS systems can handle their rated load; and at the factory for acceptance testing prior to delivery.
 
Reliable solutions for electrical testing and maintenance.
 

Delta-Resistel resistive load banks are designed to ensure the performance, reliability, and safety of your electrical systems. Used to test generators, uninterruptible power supplies (UPS), and power distribution systems, our equipment simulates real-world loads to verify the proper operation of your systems under controlled conditions.

Thanks to their robust design and high-quality components, our load banks offer optimal heat dissipation, high load accuracy, and ease of use, making them suitable for maintenance operations as well as factory or on-site testing.

Delta-Resistel offers a comprehensive range of solutions, from portable load banks to high-power systems.

Optimized to meet the demands of the industrial, commercial, and energy sectors, our resistive load banks are the ideal solution for testing, monitoring, and safeguarding your electrical equipment while ensuring compliance with current standards.

3 key features of the line:

Quiet operation
Robust design
Features

 
Our related solutions
 
Does your system include inductive loads or a combination of active and reactive loads? For data center projects, also check out our rack-mountable load banks or our custom load banks if your needs go beyond our standard ranges.

Resistive, reactive: what’s the difference?
A resistive load bank simulates a purely active load and covers most common tests. However, in reality, most industrial electrical systems combine active and inductive loads: motors, transformers, and variable-speed drives. A resistive test bench alone cannot reproduce these conditions. The resistive-reactive test bench adds the inductive component to test under variable power factors, as closely as possible to the actual operating conditions the equipment will experience.

The container format: test it anywhere, even under challenging conditions
Our resistive-reactive test benches are available in containerized formats for projects that require them. Self-contained and portable, they can be installed directly on-site without the need for dedicated infrastructure, making them ideal for construction sites, remote locations, or temporary installations. The container protects the equipment from outdoor conditions and allows for quick deployment, no matter where your installation is located.

A clear picture of your facilities’ performance
Delta-Resistel resistive/reactive load banks combine resistive and reactive loads to accurately replicate the actual operating conditions of electrical installations. They enable testing of equipment (generators, inverters, data centers) under varying power factors by simulating the stresses associated with inductive loads.
Designed for demanding environments, our test benches guarantee reliable, accurate, and representative testing, ensuring the performance, stability, and compliance of your critical installations.
An ideal solution for testing under real-world conditions, whether during commissioning or maintenance.

4 key features of the range:

Adjustable power factor
Simulation of real-world loads
Precise and modular control
Robust and secure design

Our related solutions
For tests involving purely active loads, our resistive load banks are easier to deploy. For data center projects specifically, check out our liquid-cooled data center load banks. And if your needs go beyond standard configurations, our custom load banks are designed for just that.

Our load banks: a bespoke solution

Delta-Résistel is also a global expert in the market for bespoke resistive/capacitive load banks, suitable for all power ratings and for both AC and DC current. Its strengths are well recognised: ergonomic, modular, robust and compact.

Load banks suitable for all applications

This expertise enables us to design equipment suited to all requirements:

• In terms of performance (power, power factor – unity or otherwise). We offer load banks up to 11 MVA and above on request.
• Electrical networks (HV and LV, aeronautical standards 200V 400Hz…), our load banks range from 400 V to 24 kV, and higher on request.
• Installation constraints: tunnel load banks, natural ventilation load banks or forced horizontal or vertical ventilation load banks…
• Choice of technologies: expanded metal, woven, tubular…
• Types of loads: resistive / inductive / capacitive
• Load management: intelligent control system and monitoring device
• Mobility and handling requirements: mobile load bank, trailer-mounted load bank, fitted with castors
• Customisation requirements