Stable 500kW Load
Applies repeatable resistive load for UPS, generator, switchgear, and power distribution tests.
500KW Liquid-Cooled Load Bank
A 500kW resistive load bank for data center power verification, CDU commissioning, cooling loop validation, and integrated acceptance testing before critical IT equipment goes live.
500kWRated resistive test capacity
LiquidHeat rejection through water or glycol loop
PLC/HMILocal and remote control options
Purpose-built for data center power and cooling tests
The 500kW liquid-cooled load bank converts electrical power into a controlled thermal load and carries that heat away through a closed liquid loop. Commissioning teams use it to check electrical capacity and cooling performance under repeatable site conditions.
Air-cooled load banks release heat into the room. This liquid-cooled configuration moves most of that heat into the coolant circuit, which makes it a better fit for high-density data halls, CDU FAT/SAT work, UPS and PDU validation, and integrated system commissioning.
Zeltron configures each unit around the project voltage, frequency, load step resolution, coolant type, fitting standard, communication protocol, and protection thresholds. Before shipment, the unit can be tested against the project test plan so the site team has fewer surprises during integration.
Closed-loop Heat Removal
Transfers heat into the liquid circuit instead of pushing the full thermal load into the room.
Precise Step Control
Supports staged loading, ramp tests, soak tests, and emergency unload procedures.
Project-specific Build
Cabinet layout, fittings, control protocol, and protection logic can be matched to the site design.
Technical Specifications
The parameters below describe a typical 500kW liquid-cooled resistive load bank. Final values should be confirmed against the project voltage, site conditions, and cooling loop design.
| Rated Capacity | 500kW resistive load, configurable according to project test duration and ambient/coolant conditions. |
|---|---|
| Voltage Options | AC 380V / 400V / 415V / 480V / 690V, 3 phase, 50Hz or 60Hz. Other voltage classes available on request. |
| Load Step Resolution | Typical 1kW, 5kW, 10kW, 25kW or 50kW staged control. Custom step matrix available for ramp and stability tests. |
| Load Element | Industrial stainless steel or alloy resistive elements selected for liquid-cooled heat exchange performance. |
| Cooling Medium | Water, glycol mixture or compatible engineered coolant after material compatibility review. |
| Cooling Interface | Flanged or quick-connect inlet/outlet connections. DN size, pressure rating and fitting standard selected by project. |
| Control System | PLC with HMI touch screen. Local manual operation, automatic test sequence and optional PC remote monitoring. |
| Communication | Modbus RTU, Modbus TCP, Ethernet TCP/IP or project-specific integration protocol. |
| Measurement | Voltage, current, power, frequency, load step status, coolant temperature, flow, pressure and alarm status. |
| Protection Functions | Emergency stop, over-voltage, over-current, phase loss, over-temperature, low flow, high pressure and leakage alarm options. |
| Cabinet Structure | Steel enclosure with lifting points, service doors, cable entry, coolant manifold area and optional caster or skid base. |
| Operating Environment | Indoor equipment room, test lab or factory acceptance area. Outdoor/weatherproof configuration available by request. |
| Documentation | Electrical schematic, operation manual, FAT checklist, calibration record and project-specific test report template. |
Control and Monitoring
Operators can run manual load steps, automatic sequences, and soak tests from the HMI or a remote supervisory system.
Local operationHMI touch screen
Remote controlTCP/IP or Modbus
Test recordExportable data
Emergency responseFast unload logic
Safety features for commissioning sites
Protection logic covers both the power circuit and the liquid circuit, reducing the risk of uncontrolled heat, coolant interruption, or abnormal electrical conditions during long-duration tests.
Electrical Protection
Over-current, phase loss, over-voltage and short-circuit protection can be integrated with project switchgear logic.
Thermal Protection
Load is reduced or stopped when temperature thresholds, flow conditions, or coolant pressure exceed configured limits.
Operator Safety
Emergency stop, door interlock, alarm indication, and safe discharge logic are available for site procedures.
Need a 500kW liquid-cooled load bank for your next test?
Send the required voltage, test capacity, coolant type, CDU or cooling loop details, fitting requirements, and site schedule. Zeltron will confirm the load step design, cooling interface, and control configuration before quotation.
FAQ
Common questions when selecting a liquid-cooled load bank for data center and cooling system acceptance testing.
Why use a liquid-cooled load bank instead of an air-cooled unit?
A liquid-cooled unit removes most of the heat through the coolant loop. That makes it better for high-density rooms and CDU tests where room heat discharge is not acceptable.
Can the 500KW unit test both power and cooling systems?
Yes. It applies electrical load while transferring heat to the liquid loop, so operators can check power capacity and cooling performance in the same test window.
Is the specification fixed?
No. Voltage, load steps, cooling interface, control protocol, cabinet structure, and protection thresholds can be customized for the project.
What should be confirmed before ordering?
Confirm the electrical supply, required load profile, coolant type, flow and pressure range, connection standard, installation space and reporting requirements.
