- 8,000VA/8,000W double-conversion online lithium-ion UPS in a 4U rack/tower convertible chassis
- Lithium-ion battery with up to 10-year lifespan — significantly reduces battery replacement frequency vs. lead-acid SRT
- Up to 10 SRTL180RM2UBP external battery packs supported for extended runtime
- Embedded Network Management Card — EcoStruxure IT, PowerChute graceful shutdown for servers and VMs
- 5-year warranty on UPS and lithium-ion battery
Product Highlights
Description
APC Smart-UPS Ultra 8kVA Li-Ion — SRTL8KRM4UT (208V, 4U, Network Card)
The SRTL8KRM4UT is the 8,000VA model in APC's Smart-UPS Ultra line — a true double-conversion online UPS powered by lithium-ion chemistry in a 4U rack/tower convertible chassis. It serves as the primary power protection platform for organizations requiring high-kW, always-on UPS protection with the maintenance advantages of lithium-ion over the lead-acid SRT series it complements. The embedded Network Management Card and EcoStruxure IT compatibility make this unit a manageable component in enterprise UPS fleets, enabling remote monitoring, firmware updates, and coordinated shutdown without on-site intervention.
Why Lithium-Ion vs. Lead-Acid UPS?
| Factor | Lead-Acid (SRT) | Lithium-Ion (SRTL) |
|---|---|---|
| Battery Lifespan | 3–5 years | Up to 10 years |
| Weight | Significantly heavier | Up to 40–60% lighter |
| Recharge Time | 4–8 hours | Approximately 3 hours |
| Battery Replacement Cycles | 2–3x over 10 years | 0–1x over 10 years |
| Temperature Range | Narrow | Wider operating range |
Key Features
- 8,000VA/8,000W double-conversion online — pure sine wave output, zero transfer time, continuous power conditioning
- Lithium-ion battery — up to 10-year lifespan, 30%+ size and weight reduction vs. lead-acid equivalent
- 4U rack/tower convertible with auto-rotating LCD touch display
- Up to 10 external SRTL180RM2UBP battery packs for scalable extended runtime
- Embedded Network Management Card — EcoStruxure IT integration, PowerChute graceful shutdown for physical servers, VMs, and HCI clusters
- Optional AP9834 WiFi accessory for wireless management
Technical Specifications
| Specification | Detail |
|---|---|
| Output Capacity | 8,000VA / 8,000W |
| Topology | Double-conversion online |
| Input Voltage | 208V |
| Output Outlets | 2x NEMA L6-20R, 4x NEMA L6-30R |
| Battery Type | Lithium-ion |
| Form Factor | 4U Rack/Tower convertible |
| Management | Embedded Network Management Card (included) |
| Extended Battery | Up to 10x SRTL180RM2UBP |
| Warranty | 5 years repair or replace (UPS and battery) |
Ideal Applications and Industries
The SRTL8KRM4UT is well-suited to mid-scale data centers, healthcare organizations, and enterprise server rooms where the 8kW capacity matches the load profile and the lithium-ion battery lifespan aligns with 5–10 year infrastructure refresh cycles. Colocation providers operating multiple UPS units in customer environments benefit from the reduced battery replacement overhead and the centralized management capability through EcoStruxure IT. Government and defense data centers with long equipment lifecycles gain the most from the 10-year lithium-ion battery lifespan — avoiding battery replacement events that fall outside scheduled maintenance windows.
Reduce Battery Maintenance Across Your Fleet
Questyme helps infrastructure teams evaluate the SRTL8KRM4UT against lead-acid SRT alternatives using real TCO models that include battery replacement labor, disposal costs, and downtime risk. Contact Questyme for a TCO comparison and deployment consultation tailored to your environment and fleet size.
Specifications
Overview
Model
APC Smart-UPS Ultra On-Line Lithium ion, 8KVA/8KW, 4U Rack/Tower, 208/240V
Main
Input Voltage
208,240 AC
Output Voltage
208 AC
Rated Power in VA
8000
Input Connection Type
Hard Wire 3-wire 48 A
Max Configurable Power in VA
8000 VA
Max Configurable Power in W
8000 W
Topology
Double Conversion Online
Battery Type
Li-Ion (Lithium Ion)
Removable Battery
User replaceable
Wave Type
Sine wave
Emergency Power Off
Yes
Number of Cables
1
Physical
Color
Silver grey
Mounting Mode
Rack-mounted with kit, Tower-mounted with kit
Mounting Preference
Lower
Product Line
SMART-UPS ON-LINE
Shipping Dimensions
Height: 24.8Width: 25.59Length: 39.37
Shipping Weight
195.1 lb
UPC Code
731304578475
Lead time
Usually in Stock
Provided Equipment
Temperature Probe
USB cable
Stabilization feet
Strain relief
Rack mounting hardware
USB cable
Stabilization feet
Strain relief
Rack mounting hardware
Standards
UL 1778
Product Certifications
cULus
ENERGY STAR V2.0 (USA)
ENERGY STAR V2.0 (USA)
Environmental
Carbon Footprint (kg CO₂ eq, Total Life Cycle)
16931
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
55 dB
Relative Humidity
0-95 % non-condensing
Storage Relative Humidity
0-95 % non-condensing
Operating Altitude
0-10000 ft
Storage Altitude
0-50000 ft (0.0000000000-15240.0000000000 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