APC SRT1500XLI – Smart-UPS On-Line 1.5kVA 230V
1500VA Online UPS with Unity Power Factor.
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APC SRT1500XLI – Smart-UPS On-Line 1.5kVA 230V
Overview :
The APC SRT1500XLI is a high-density, double-conversion online Uninterruptible Power Supply (UPS) engineered for critical power protection in server rooms, network closets, and edge computing environments. Unlike standard line-interactive units, this system provides zero transfer time to battery by constantly regenerating power, ensuring that sensitive electronics are shielded from surges, spikes, and frequency fluctuations. With a 1500VA capacity and a 1.0 power factor (1500W), it maximizes efficiency for modern active power factor corrected (PFC) servers and high-end networking gear.
Key Features :
True double-conversion topology for zero transfer time.
Unity power factor provides 1500W of actual power.
Rack/Tower convertible 2U chassis for flexible install.
Supports external battery packs for scalable runtime.
Specifications :
| Brand | APC |
| Part Number | SRT1500XLI |
| Product Type | On-Line UPS |
| Output Power Capacity | 1500 Watts / 1500 VA |
| Nominal Output Voltage | 230 V |
| Topology | Double Conversion Online |
| Output Connections | (6) IEC 60320 C13 |
| Input Connection | IEC 60320 C14 |
| Input Voltage Range | 100 – 275 V (adjustable) |
| Battery Type | Sealed Lead-acid |
| Typical Recharge Time | 3 hours |
| Interface Ports | RJ-45 Serial, Smart-Slot, USB |
| Form Factor | 2U Rackmount / Tower |
| Dimensions (H x W x D) | 432 mm x 85 mm x 505 mm |
| Operating Temperature | 0 – 40 °C |
Frequently Asked Questions :
Does the SRT1500XLI include rack-mount rails?
The SRT1500XLI is a convertible unit. While it can be used as a tower, the rack-mounting rail kit (part number SRTRK4) is typically required for 4-post rack installations and is often sold separately.
Can I extend the runtime of this UPS?
Yes, the SRT1500XLI supports external battery packs (SRT48BP or SRT48RMBP). You can daisy-chain multiple packs to meet specific uptime requirements for your critical load.
What is the benefit of the Unity Power Factor in this model?
A 1.0 power factor means the VA rating equals the Wattage (1500VA = 1500W). This allows you to support more modern, high-efficiency servers compared to older UPS models with lower power factors (e.g., 0.7 or 0.9).
Additional information
| Weight | 20.5 kg |
|---|---|
| Dimensions | 505 × 85 × 432 cm |
| Brand | Apc |







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