Precision Load Banks.
Built for Data Centre
Commissioning & Power Testing.
Zeltron manufactures CE-certified resistive, reactive, and liquid-cooled load banks from 30 kW to 3 MW for FAT/SAT commissioning teams across Europe and Southeast Asia. Rack-mounted, containerised, and trailer-mounted configurations for UPS, generator, and data centre power testing. IEC 61439 compliant. Report-ready data output.
Our Story
Why We Build This
6
Load Bank Configurations
50+
Countries Served
48 hrs
Technical Enquiry Response
LoadBankTest designs and manufactures CE- and IEC-certified load banks for data centre commissioning, UPS discharge testing, and generator verification — serving EPC contractors and facility operators across Europe, the Middle East, and Southeast Asia. Founded in 2016, our product line spans 10 kW to 5 MW across six configurations: liquid-cooled, rack-mounted, dual-source, containerised, DC, and regenerative.
We built LoadBankTest because commissioning engineers in Europe and the Middle East were still facing the same gap: inventory that met CE standards but could not be delivered within the project window, or units that arrived without the IEC documentation that certification auditors require. Our first product was a resistive load bank designed specifically for data centre IST — engineered to pass CE type testing, shipped to European sites with a complete compliance file. Every model since has been held to that same standard.
Today, our equipment is deployed in data centres, generator installations, and critical power facilities across 50+ countries. Every unit ships with a full compliance package — CE declaration, test reports, and IEC conformity records — ready to submit to certification bodies on arrival. If your project requires configurations outside our standard range, our engineering team delivers custom solutions within 48 hours.
Manufacturing & Compliance
Commissioning-Grade Build
Certifications & Compliance
CE
CE Marking
All Zeltron load banks carry CE marking, confirming conformity with EU Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU. A Declaration of Conformity is supplied with every unit.
↗ Download Declaration of Conformity (PDF)IEC
IEC 61439-1
Designed and tested to IEC 61439-1, covering low-voltage switchgear and controlgear assemblies. Type test documentation available on request.
↗ Download Type Test Report (PDF)ISO
ISO 9001:2015
Zeltron operates under ISO 9001:2015 quality management, audited annually by [certification body]. Certificate no.: [XXX].
↗ Download ISO Certificate (PDF)RoHS
RoHS 3 Compliant
All units comply with EU Directive 2011/65/EU restricting hazardous substances in electrical and electronic equipment. RoHS compliance documentation included in shipment package.
↗ Download RoHS Declaration (PDF)L4/L5
Uptime Institute / EN 50600
Zeltron load banks support Level 4 Functional Performance Testing and Level 5 Integrated Systems Testing, as referenced in Uptime Institute Tier certification programmes and EN 50600 data centre standards.
QC
72-Hour Burn-in Test
Every unit undergoes a 72-hour full-load burn-in test at our factory prior to shipment. Each unit ships with a calibration test record as part of the commissioning documentation package.
Product Range
| Model Series | Type | Power Range | Cooling | Primary Application | Standard |
|---|---|---|---|---|---|
| [Model A]→ Spec Sheet | Resistive | 30 kW to 500 kW | Air-Cooled | UPS / Generator FAT | IEC 61439-1 |
| [Model B]→ Spec Sheet | Resistive + Reactive | 100 kW – 2 MW | Air-Cooled | IST / Full Facility Testing | IEC 61439-1 |
| [Model C]→ Spec Sheet | Liquid-Cooled | 30 kW to 600 kW | Water / Coolant Loop | CDU / Liquid-Cooled DC | IEC 61439-1 |
Key Applications
Engineered for Critical Testing
Data Centre Integrated Systems Testing (IST)
Full-facility load testing to verify UPS, generator, and cooling systems perform under real-world conditions. Supports Uptime Institute Level 5 IST requirements and EN 50600 commissioning standards. Rack-mounted and containerised configurations available for flexible deployment.
UPS Discharge Testing
Precision resistive load banks for battery and UPS system discharge testing. Verify autonomy time, battery health, and system performance under simulated mains failure — with calibrated, timestamped output compatible with commissioning audit documentation.
Generator Commissioning & Load Testing
Resistive and resistive-reactive load banks for generator steady-state testing, load rejection, and transient response verification. Prevent wet-stacking and confirm rated power output during commissioning — with reportable data output for TUV and Uptime Institute submissions.
Who We Serve
Built for the Teams Who Sign Off
Primary Audience
Commissioning Agents (CxA)
Zeltron load banks are built to the documentation standard that commissioning auditors demand. Every unit outputs calibrated, timestamped test data in a format that submits directly to Uptime Institute, TUV SUD, and equivalent certification bodies. For multi-site projects across Europe and the Middle East, our equipment delivers consistent, repeatable performance — so your sign-off reports reflect the test results, not the equipment.
- Calibrated, timestamped test data output
- Consistent performance across multi-site projects
- Uptime Institute Tier III/IV commissioning compatible
- Full CE and IEC documentation pack with every unit
Project Delivery
EPC & Data Centre Contractors
Schedule pressure is the reality of every data centre build. Zeltron supplies trailer-mounted and containerised load banks with lead times designed around project-critical timelines — not factory convenience. Our engineering team is available on-site during the commissioning window, and our equipment interfaces with all major generator and UPS brands without additional interface hardware.
- Fast lead times for project-critical schedules
- Trailer-mounted and containerised options available
- On-site technical support during commissioning window
- Compatible with all major generator and UPS brands
Ongoing Operations
Data Centre Operators
Ongoing load testing is not optional — it is the difference between a generator that starts when mains power fails and one that actually runs at full load. Zeltron equipment supports annual load testing programmes, generator wet-stacking prevention, and maintenance window testing at operational facilities. Units are available for purchase or through our rental programme for periodic testing requirements.
- Annual load testing and maintenance window support
- Generator wet-stacking prevention testing
- Purchase and rental options available
- Complete operations and maintenance documentation included
The People Behind the Product
The Engineering Team Behind Every Unit
Zeltron is built by engineers with hands-on experience in power electronics, load testing, and data centre infrastructure. No stock photos. No invented titles.
Walter
Founder & Lead Power Electronics Engineer
20 years of experience in power electronics and industrial load bank design, including energy storage systems and critical power infrastructure. Previously led hardware development at Batterlution before founding Zeltron in 2016 to bring CE- and IEC-certified load banks to data centre commissioning teams across Europe and the Middle East — built around the requirement that equipment must deliver within the project window.
Ethan
Senior Electrical Engineer
25 years in industrial R&D spanning control software and power systems architecture, with full-lifecycle product development. At Zeltron, Ethan leads control system development — including automated test sequences and report-ready data output for IST data centres across Europe and the Middle East.
Alex
Head of Hardware & Product
Primary point of contact for all custom load bank requirements at Zeltron. Alex manages the full workflow from customer specifications through to factory acceptance testing — ensuring that non-standard voltage ranges, enclosure ratings, and control interfaces meet the same CE and IEC compliance standards as our core product line.
FAQ
Questions CxA Teams
Always Ask
If your question is not answered below, our engineering team responds to all technical enquiries within 1 business day.
Ask a Technical Question// Start a Conversation
Ready to Specify a Load Bank for Your
Next Commissioning Project?
Send us your project scope — power range, site location, commissioning level — and we'll respond with a technical specification within 48 hours.
Email: info@loadbanktest.com
WhatsApp: +[Number]
We respond to all technical enquiries within 1 business day · Monday–Friday
