Description
The ABB HIES208441R is a high-power 2.5 Ohm Water Cooled Resistor designed for industrial power conversion and drive applications. It is used for energy dissipation and dynamic braking functions in high-power variable speed drive systems, helping control DC bus voltage during regenerative braking operations.
The water-cooled construction provides efficient thermal management for continuous high-power operation. This type of resistor is commonly applied in ABB drive systems, braking units, load applications, and industrial power control equipment where large amounts of regenerated energy must be safely dissipated.

HIES208441R.. ABB
Product Specifications
| Parameter | Description |
|---|---|
| Brand | ABB |
| Model | HIES208441R |
| Series | ABB Water-Cooled Braking Resistor |
| Product Name | 2.5 OHM Water Cooled Resistor |
| Product Type | High Power Braking / Load Resistor |
| Resistance Value | 2.5 Ω |
| Cooling Method | Water Cooled |
| Application Function | Dynamic braking energy dissipation |
| Rated Power | Approx. 500 kW continuous power class |
| Maximum Voltage | Up to 1000 VDC |
| Tolerance | ±5% |
| Thermal Resistance | Approx. 0.15 °C/W |
| Housing Material | Stainless steel with protective coating |
| Mounting Type | Floor-mounted / panel-mounted |
| Compatible Systems | ABB variable speed drives and braking systems |
| Operating Temperature | -20°C to +70°C |
| Place of Manufacture / Origin | Sweden |
| Product Status | Legacy Industrial Spare Part |
| Dimensions | Approx. 650 × 200 × 300 mm |
| Weight | Approx. 45 kg |
| Country of Origin | Sweden |
| Power Requirements | External water cooling system required |
Key Features
✅ Original ABB high-power resistor component
✅ 2.5 Ohm resistance value for braking applications
✅ Water-cooled design for improved heat dissipation
✅ Suitable for high-current industrial drive systems
✅ Designed for demanding continuous-duty applications
✅ Supports maintenance of ABB legacy power conversion equipment
Applications
• ABB variable frequency drive systems
• Dynamic braking units
• Industrial motor drive systems
• Marine propulsion drive systems
• Mining and heavy machinery applications
• Power conversion and energy recovery systems
• Industrial load banks
Frequently Asked Questions
❓ Q: What is the ABB HIES208441R used for?
A: The HIES208441R is a water-cooled braking resistor used to absorb and dissipate regenerative energy from high-power drive systems.
❓ Q: Is HIES208441R a control module?
A: No. It is a passive power component used for electrical energy dissipation, not a PLC, DCS, or controller module.
❓ Q: What is the resistance value of this ABB resistor?
A: The resistance value is 2.5 Ohms.
❓ Q: Why does this resistor use water cooling?
A: Water cooling allows efficient removal of heat generated during high-power braking operation, improving thermal stability and enabling higher power handling.
❓ Q: Which ABB products commonly use water-cooled braking resistors?
A: These resistors are commonly associated with ABB high-power drive systems, braking units, and industrial power conversion equipment.
Recommended ABB Related Models
- ABB HIES208440R – Water Cooled Resistor, 5.0 Ohm version.
- ABB HIES208442R – Water Cooled Resistor, 1.0 Ohm high-power version.
- ABB HIES208443R – Industrial Resistor variant for power dissipation applications.
- ABB HIES208444R – Water Cooled Braking Resistor, 2.5 Ohm variant.
- ABB HIES208445R – High-power water cooled resistor.
- ABB HIES308461R0012 – 2.5 Ohm Water Cooled Resistor.
- ABB NBRW Series Water Cooled Braking Units – Dynamic braking assemblies.
- ABB ACS600 MultiDrive Water Cooled Units – High-power drive platform.
- ABB ACS800 Water Cooled Drive Systems – Industrial drive systems with braking solutions.
- ABB ACS880 MultiDrive Series – Modern high-performance drive platform.
- ABB DCS800 Drive Systems – Industrial DC drive solutions.
- ABB ACS1000 Medium Voltage Drives – Medium voltage drive platform.
- ABB ACS5000 Medium Voltage Drives – High-power industrial drive systems.
- ABB Braking Chopper Units – DC bus energy management modules.
- ABB Power Conversion Systems – Industrial energy conversion equipment.



