Introduction
As a global leader in standard power supply solutions, MEAN WELL continues to innovate in power electronics, delivering reliable energy solutions for critical applications worldwide. With over 40 years of industry experience, the company remains committed to providing high-performance and dependable uninterruptible power supply (UPS) systems.
Following the strong market success of the ES-SU/TU Series online UPS systems, MEAN WELL is expanding its product portfolio with the introduction of the ES-SU1K/3K Series, offering 1kW and 3kW power options. This new lineup is designed to meet a wider range of application needs, from small-scale systems to more demanding power protection scenarios.
In addition to the UPS units, MEAN WELL also provides a comprehensive range of accessories, including communication interfaces and battery solutions. This enables customers to build flexible, scalable, and fully integrated power backup systems.
Complete Product Specifications

Communication Card Accessories
(Installable in the "Communication Card Slot" on the rear panel of the UPS)

Battery Pack
(Compatible with ES-SU6K / ES-SU10K Series)
Key Features
High Power Quality and Efficiency
- Input power factor ≥ 0.99 for efficient energy usage
- Low input current harmonic distortion (≤ 2%) to reduce grid impact
- Output power factor of 1, delivering maximum usable power
Flexible Power Source Compatibility
- Supports connection to fuel generators, ensuring reliable operation in off-grid or backup scenarios
- 50Hz/60Hz frequency conversion mode, suitable for global applications
Advanced Protection and Safety
- Emergency Power Off (EPO) function for immediate shutdown in critical situations
- Designed to provide stable and continuous power for sensitive equipment
Communication and Monitoring
- Equipped with USB and RS-232 communication interfaces
- LCD display panel for real-time system monitoring and easy operation
Reliable and Scalable Solution
- Compatible with a range of battery and communication accessories
- Enables easy system expansion and integration
Warranty
- 3-year warranty for the UPS unit
- 1-year warranty for batteries
Typical Applications
The ES-SU1K/3K Series is ideal for:
- IT and network equipment
- Small data centers
- Telecom systems
- Office and commercial environments
- Industrial control systems
Product Information
Conclusion
The ES-SU1K/3K Series Online UPS Systems offer a reliable and flexible solution for protecting critical equipment from power interruptions. With high efficiency, strong compatibility, and comprehensive protection features, this series is an excellent choice for applications requiring stable and uninterrupted power supply.
If you need help selecting the products, feel free to contact our team at contact@powersupplymall.com. We provide professional technical support and a wide range of power supply solutions.
