- kVA modular lithium-ion double-conversion on-line UPS for enterprise data centers and critical infrastructure
- Configured with 18 battery cells for matched runtime profile; expandable through hot-swappable battery modules
- 120V input/output — Tower form factor for flexible deployment
- Hot-swap power and battery modules — perform service and capacity expansion without taking the UPS offline
- AP9643 Network Management Card 3 included for SNMP, web management, and EcoStruxure IT integration
- Lithium-ion battery technology delivers up to 10-year service life and dramatically reduced maintenance vs. lead-acid alternatives
Product Highlights
Documents
Description
APC Smart-UPS Modular Ultra SRYL20K20XLT18 — 0kVA Lithium-Ion Scalable Modular On-Line UPS
The SRYL20K20XLT18 is APC's top-tier enterprise modular UPS at 0kVA capacity. Where traditional monolithic UPS units require full-system replacement for capacity expansion or battery refresh, the Smart-UPS Modular Ultra (SRYL) platform makes both possible without taking the UPS offline. Power modules, battery modules, and backplates are all hot-swappable and field-installable.
Modular Architecture — What It Changes
Monolithic UPS units force decisions at procurement: how much capacity do I need today, plus how much growth do I expect over 5-7 years? Buy too little and you face a forklift upgrade. Buy too much and capital is tied up in unused capacity. The SRYL modular architecture solves this by separating capacity from chassis: start with the modules you need today, add capacity as load grows, replace aging battery modules individually rather than swapping entire cabinets.
Lithium-Ion Battery Technology
Built-in lithium-ion battery modules deliver up to 10-year service life — roughly 2-3x the lifespan of traditional VRLA lead-acid batteries. The practical result: fewer scheduled maintenance windows, lower lifetime battery replacement costs, and significantly reduced facility weight loading vs. equivalent lead-acid configurations.
Key Features
- Hot-Swappable Power Modules: Add capacity or replace failed modules without taking the UPS offline.
- Scalable Battery Architecture: Internal modules plus external battery cabinets — runtime scales independently from capacity.
- N+1 Redundancy Capable: Configure additional modules for redundant operation; tolerate module failures without load impact.
- Lithium-Ion Battery Modules: 10-year service life, faster recharge, wider operating temperature range, dramatically lower lifetime maintenance.
- AP9643 Network Management Card 3 Included: SNMP v3, web/CLI, EcoStruxure IT integration, environmental monitoring out of the box.
- Field-Configurable Backplate: Match output outlets to site-specific requirements without separate SKUs.
- True Double-Conversion On-Line: Continuous inverter operation, zero transfer time, full isolation from utility events.
Technical Specifications
| Specification | Value |
|---|---|
| Capacity | 0kVA / 0kW |
| Topology | Double-Conversion On-Line, Modular |
| Battery Technology | Lithium-Ion |
| Voltage | 120V |
| Form Factor | Tower |
| Battery Configuration | 18 battery cells (standard runtime configuration) |
| Management | AP9643 NMC3 included; EcoStruxure IT compatible |
| Redundancy | N+1 capable through additional power modules |
| Hot-Swap | Power and battery modules; backplate field-configurable |
| Warranty | 5-year repair or replace |
Industries and Critical Applications
- Colocation Data Centers: Tenant-level power protection with SLA-aligned redundancy and hot-swap maintenance windows.
- Enterprise Data Centers (Tier III/IV Aligned): Modular redundancy supports concurrent-maintainable and fault-tolerant power architectures.
- Healthcare Systems and Hospital IT: Type 1 Essential Electrical System equipment, EMR/EHR infrastructure, imaging system control, and patient-care critical workloads.
- Financial Services Trading Infrastructure: Zero-downtime architecture for HFT, market data systems, and exchange connectivity.
- Government Mission-Critical Facilities: Federal IT continuity of operations, emergency management centers, 911 dispatch, and continuity sites.
- Manufacturing Process Control: SCADA, DCS, MES infrastructure for industries where process restart costs justify on-line UPS investment.
Enterprise Power Architecture — Start with a Conversation
Modular UPS deployment is a multi-decision process: capacity planning, redundancy configuration, battery module count, maintenance bypass requirements, backplate outlet selection, and integration with existing building management systems. Questyme has worked with data center architects, healthcare facilities engineers, and government IT directors to deploy modular UPS systems aligned with both operational and procurement requirements. Contact Questyme to discuss your critical power infrastructure.
Specifications
Overview
Model
APC Smart-UPS Modular Ultra 20kW Scalable to 20kW N+1 Redundant, Tower, 208/240V, 18U Rack
Main
Input Voltage
208 AC
Output Voltage
120 AC
Rated Power in W
20000 W
Rated Power in VA
20000
Max Configurable Power in VA
20000 VA
Max Configurable Power in W
20000 W
Topology
Double Conversion Online
Battery Type
Li-Ion (Lithium Ion)
Removable Battery
User replaceable
Wave Type
Sine wave
Emergency Power Off
Yes
Physical
Color
Black and silver
Product Line
SYMMETRA (1PHASE)
Shipping Dimensions
Height: 41.73Width: 29.53Length: 39.17
Shipping Weight
583.7 lb
UPC Code
731304622024
Lead time
Usually in Stock
Product Certifications
ENERGY STAR V2.0 (USA)
Environmental
Carbon Footprint (kg CO₂ eq, Total Life Cycle)
45669
Packaging Made with Recycled Cardboard
Yes
Packaging without Single Use Plastics
No
Ambient Air Temperature for Operation
32-104 ?F (0-40 ?C)
Ambient Air Temperature for Storage
5-113 ?F (-15-45 ?C)
Acoustic Level
68 dB
Storage Relative Humidity
0-95 %
Operating Altitude
0-9842.52 ft (0-3000 m)
Storage Altitude
0.0000000000-49212.6 ft (0-15000 m)
Packaging / Certifications
Unit Type of Package 1
PCE
Packaging Made with Recycled Cardboard
Yes
Packaging without Single Use Plastics
No
Take-back
No
EU RoHS Directive
Compliant with Exemptions