Working with our Vertiv Sales team enables complex designs to be configured to your unique needs. If you are an organization seeking technical guidance on a large project, Vertiv can provide the support you require.

Learn More

Many customers work with a Vertiv reseller partner to buy Vertiv products for their IT applications. Partners have extensive training and experience, and are uniquely positioned to specify, sell and support entire IT and infrastructure solutions with Vertiv products.

Find a Reseller

Already know what you need? Want the convenience of online purchase and shipping? Certain categories of Vertiv products can be purchased through an online reseller.


Find an Online Reseller

Need help choosing a product? Speak with a highly qualified Vertiv Specialist who will help guide you to the solution that is right for you.



Contact a Vertiv Specialist

Product Model

Liebert® APS AS3 Series

The Vertiv Liebert APS is a modular online double conversion UPS, offering the highest level of power conditioning and power protection for critical IT systems. Continuous power conditioning, zero transfer time, pure sinewave output and scalable runtime make it ideally suited to protect critical infrastructure in both centralised and edge network applications. The modular design offers maximum power availability with built-in redundancy for fault tolerance.

Liebert APS Selector View Performance Tables
Login to Save for Later
Key Benefits
• 5kVA – 20kVA Rack/Tower form factor • Scalable from 5kVA to 20kVA N+1 for optimal power availability • Pre-installed Unity card for free remote management. • Hot swappable power, battery and control modules allows for maintenance on the system without disturbance to attached loads. • Multiple output configurations for ultimate installation flexibility.
Best Suited For:
  • Government
  • Healthcare
  • Retail and Wholesale
  • Transportation
Warranty: TWO YEAR LIMITED WARRANTY AGAINST DEFECTS IN MATERIAL AND WORKMANSHIP
  • Modular, Scalable Architecture: Modules come in 5–20 kVA capacity and scalable in 5 kVA increments with N+1 redundancy. With Pay-as-you-grow flexibility, add power or battery modules as demand increases without replacing the entire system.
  • Dual Battery Chemistry Support:This industry-first UPS supports VRLA and Lithium-Ion in the same frame. Choose the battery technology that fits your budget and runtime needs today, with the ability to upgrade later without firmware changes.
  • Hot-Swappable Modules: This user-replaceable power, battery, and control modules allow you to perform maintenance or upgrades without downtime, providing continuous availability.
  • ​ ​
  • Built-In Redundancy: It has module-level N+1 redundancy for power and battery, which eliminates single points of failure, so critical loads remain protected even during maintenance or component failure.
  •  ​​
  • Online Double Conversion Topology: Its true online design with zero transfer time and internal automatic bypass protects your devices against all power anomalies (sags, surges, harmonics) and provides clean, conditioned power for sensitive IT loads.
  • High Output Power Factor: With 0.9 power factor per module (5 kVA / 4.5 kW), it delivers more usable power in the same footprint, optimizing rack and floor space.
  • Intelligent Battery Management: It has temperature-compensated charging for VRLA and integrated BMS for Lithium-Ion. This management extends battery life, reduces replacement costs, and provides real-time health monitoring for predictive maintenance.
  • Flexible Runtime Options: Add battery modules or external battery cabinets for extended backup. Scale runtime without taking the load offline, which is ideal for evolving site requirements.
  •  ​​
  • Remote Monitoring & Control: It comes with factory-installed Vertiv™ Liebert® IntelliSlot™ RDU120 card with Vertiv™ LIFE™ Services. This enables secure remote management, predictive analytics, and proactive service to maximize uptime.
  • Compact, Versatile Deployment: It allows tower or rack configuration with optional PODs for varied outlet types. This fits diverse IT and edge environments with simplified installation and adaptability.

The Liebert APS is a modular, single phase output UPS, with both single and three phase input options to provide both high availability and flexibility. The Liebert APS adapts efficiently and effectively to both immediate and evolving power requirements, offering capacity on demand with flexible power modules which allow capacity upgrades in 5 kVA/4.5kW increments up to 20 kVA N+1.

Liebert® APS AS3 Series
Product Overview
Power Rating
Up to 15kVA/13.5kW N+1
Input Voltage Range
208VAC
Output Voltage Range
208/120VAC
Efficiency
Up to 91%
Wiring
3-Wire (L-L-G)
Operational Conditions
Operating Temperature
0°C - 40°C (32°F - 104°F)
Tools & Selectors
Use the Liebert® APS Selector
Find the UPS required based on a variety of configurations

Find Your Area Contact

Products Support Contacts
Showing contacts for California, 91733, USA Change
Vertiv (Liebert Services)
+1 800 543 2378
610 Executive Campus Drive Westerville Ohio 43082 USA
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Thermal Management, Integrated Solutions, Racks and Containment

AS3 & AS4 Series APS Performance Tables

Model

Power Capacity

Scalable To
(kVA/kW)

Input

Output

Full-Load
Runtime (min)

Half-Load
Runtime (min)

AS3A0NCUGNNXLKB

5kVA / 4.5kW

15 / 13.5

Hardwire (L-L-G)

Hardwire
Optional PODs

5.0

14

AS3A0NCVGNNXLKB

5kVA / 4.5kW

15 / 13.5

Hardwire (L-L-G)

Hardwire
Optional PODs

15

38

AS3B0NCVGNNXLKB

10kVA / 9.0kW

15 / 13.5

Hardwire (L-L-G)

Hardwire
Optional PODs

5.0

15

AS3B0NCYGNNXLKB

10kVA / 9.0kW

15 / 13.5

Hardwire (L-L-G)

Hardwire
Optional PODs

21

51

AS3C0NCWGNNXLKB

15kVA / 13.5kW

15 / 13.5

Hardwire (L-L-G)

Hardwire
Optional PODs

5.0

15

AS3C0NCXGNNXLKB

15kVA / 13.5kW

15 / 13.5

Hardwire (L-L-G)

Hardwire
Optional PODs

8.0

22

AS4A0NCUGNNXLKB

5kVA / 4.5kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

5.0

14

AS4A0NCVGNNXLKB

5kVA / 4.5kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

15

37

AS4B0NCVGNNXLKB

10kVA / 9.0kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

5.0

15

AS4B0NCYGNNXLKB

10kVA / 9.0kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

21

51

AS4C0NCWGNNXLKB

15kVA / 13.5kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

5.0

15

AS4C0NCJGNNXLKB

15kVA / 13.5kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

15

39

AS4D0NCXGNNXLKB

20kVA / 18.0kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

5.0

15

AS4D0NCJGNNXLKB

20kVA / 18.0kW

20 / 18.0

Hardwire (L-L-G)

Hardwire
Optional PODs

10

26


Notes

  • N+1 Power Redundancy can be achieved on any standard configuration by purchasing an extra power module.
  • Models 10kVA and up can be configured to N+1 redundancy with a 5kVA/4.5kW De-rate to unit capacity.
  • Scalable Runtime solutions are available, for details please contact your local Vertiv™ office and design your own solution with an expert on the product

PARTNERS
Overview
Consultants Corner
Partner Login

Language & Location