Transformer-free Three-phase UPS with Dual Battery Compatibility and Intelligent Energy Management for Uninterruptible Power Supply

The Vertiv Liebert EXL S1 (300–1200kVA) is a new-generation, transformer-free three-phase high-capacity UPS solution developed by Vertiv (formerly Emerson). It is perfectly matched with a dedicated lithium-ion battery cabinet to form an integrated backup power system. Featuring an advanced IGBT three-level topology, the system delivers double-conversion efficiency of up to 97% and peak ECO dynamic mode efficiency of 99%. Its ultra-compact, space-saving structure effectively reduces equipment room footprint and construction costs. The solution supports flexible lithium/lead-acid dual battery configuration and includes built-in intelligent energy management for grid peak shaving and optimized new-energy access. Power ratings cover 300/400/500/600/800/1000/1200kVA across multiple specifications, making it widely deployable in large-scale IDC data centers, core telecom equipment rooms, industrial parks, and commercial critical power projects.

• Ultra space-saving compact cabinet layout with high power density design to minimize floor space and civil construction investment.
• Advanced three-level IGBT topology: double-conversion efficiency ≥97%, ECO running efficiency up to 99%, drastically cutting long-term electricity expense.
• Wide input voltage tolerance and strong anti-grid disturbance capability, effectively eliminating upstream power fluctuation damage to precision loads.
• Dual battery compatibility: seamlessly matches Vertiv lithium battery and traditional VRLA lead-acid battery with flexible capacity configuration.
• Intelligent energy control: supports grid peak-valley shaving and solar/wind new-energy grid-connected access to reduce enterprise power costs.
• Full parallel expansion design, allowing multiple units to cascade into a MW-level large redundant uninterruptible power system.
• 7-inch touch HMI screen with multi-protocol communication (RS485/RJ45/SNMP) for remote centralized monitoring and parameter customization.
• Complete multi-layer electrical protection: OVP/OCP/SCP/OTP plus lightning surge protection, compliant with global IEC/UL safety standards.
• Wide ambient adaptability from 0℃ to 40℃ with low running noise design for indoor data center environments.

• Large and hyper-scale cloud data center core server room backup power.
• Provincial core telecom and mobile communication central equipment room UPS systems.
• Pharmaceutical and medical precision instrument critical uninterrupted power supply.
• Large industrial factory and automation production line emergency power.
• Banking and securities central computer room power protection.
• New energy storage and grid peak shaving comprehensive power station projects.

We are a professional manufacturer and one-stop solution provider for communication DC power systems, with mature R&D strength, large-scale production capacity, and flexible service modes. We fully support OEM and OBM cooperation, helping global partners create differentiated power products.

1. Powerful R&D & Customization Ability Our professional technical team brings years of experience in the power industry. We provide personalized customization covering power configuration, external interfaces, appearance design, and logo printing to satisfy diverse demands from telecom operators, system integrators, and equipment manufacturers.
2. Comprehensive OEM & OBM Services We offer full-cycle cooperation support from product design and prototype testing to certification and mass production. With an efficient development process and strict quality management, we help you launch products quickly and build exclusive brand advantages.
3. Large Production Capacity & On-time Delivery We own standardized production workshops and complete production lines. Relying on a stable supply chain and mature production technology, we maintain sufficient inventory and strong production capacity, ensuring on-time delivery even for bulk orders and long-term cooperative supply.
4. Strict Multi-level Quality Inspection All products pass full-load operation tests, high-low temperature aging tests, and simulated on-site operation tests before delivery. We adopt high-quality original components and implement strict quality control standards to guarantee long-term stable operation in various harsh environments.
5. Full Lifecycle Technical & After-sales Support We maintain a complete service system covering pre-sales consultation, in-sales technical guidance, and after-sales maintenance. Our technical team responds quickly with remote debugging, on-site technical guidance, and spare parts supply to protect the stable operation of your power system at all times.
6. Rich Global Project Experience Our products have been exported to many countries and regions and are widely applied in communication, data center, industrial control, new energy, and other fields. With rich project experience, we provide targeted power solutions for different regional standards and application scenarios.

We sincerely look forward to establishing a long-term, stable cooperative partnership with you.