APC by Schneider Electric SRT8KXLT-IEC vs Vertiv GXT5LI-8000GVRT3UXLN: Specification Comparison
Both the APC Smart-UPS SRT8KXLT-IEC and the Vertiv Liebert GXT5LI-8000GVRT3UXLN are 8000 VA / 8000 W double-conversion online UPS units designed for critical IT and industrial loads. Each delivers true online topology with sine-wave output, placing them squarely in the same enterprise-grade, rack-mount power-protection class. This comparison evaluates the three axes most relevant to a buying decision: electrical performance and input flexibility, physical and environmental fit, and standards compliance and output configurability.
In This Guide
- Which UPS offers broader input voltage tolerance and higher electrical efficiency?
- How do the two units compare in size, weight, and operating environment?
- Which unit provides greater output flexibility and broader agency certifications?
- Which should you choose: the SRT8KXLT-IEC or the GXT5LI-8000GVRT3UXLN?
- Side-by-Side Specs
- FAQ
Which UPS offers broader input voltage tolerance and higher electrical efficiency?
The APC SRT8KXLT-IEC accepts an exceptionally wide input voltage range of 100 V to 275 V at 40–70 Hz, meaning it can ride through severe browndowns and international voltage anomalies without switching to battery. Its rated efficiency is 98.5% at full load in online mode, and output voltage THD is specified at 2%, indicating very clean power delivery. Crest factor is listed at 3:1, accommodating non-linear loads such as switch-mode power supplies. Surge energy absorption is rated at 480 J.
The Vertiv GXT5LI-8000GVRT3UXLN specifies an input voltage range of 200 V–240 V, which is considerably narrower than the APC unit. Efficiency, output THD, crest factor, and surge energy rating are not provided in the available specifications. Output voltage regulation is stated at ±1%, and output is user-configurable between 200 V and 240 V (default 230 VAC). The Vertiv unit uses hardwired input (L1-L2/N-G wiring), which is a different connection paradigm from the IEC-outlet-equipped APC.
How do the two units compare in size, weight, and operating environment?
Physical and environmental specifications are provided only for the Vertiv GXT5LI-8000GVRT3UXLN: it measures 5.25 in H × 16.9 in W × 35 in D (3U rack form factor) and weighs 105 lbs. Operating temperature is 32°F to 104°F (0°C to 40°C), with a 10% output derating noted at 50°C. Noise level is not specified for the Vertiv unit.
For the APC SRT8KXLT-IEC, physical dimensions and weight are absent from the provided specifications. The APC unit does carry a noise rating of 55 dB(A), which gives acoustic planning data the Vertiv listing does not supply. Neither unit's humidity rating nor altitude derating is included in the provided specs for either model.
Which unit provides greater output flexibility and broader agency certifications?
The Vertiv GXT5LI-8000GVRT3UXLN carries an extensive list of agency approvals: IEC 62040-1:2008+A1 2013, IEC 62619 1st Ed. (lithium-ion battery safety), IEC 62040-2 2nd Ed., IEC 61000-3-2, IEC 61000-3-12, CISPR 22 Class A, FCC Part 15 Class A, and UL 1778. The IEC 62619 listing confirms a lithium-ion battery chemistry, which typically offers longer cycle life and reduced replacement frequency compared to VRLA. Output voltage is user-configurable from 200 V to 240 V at ±1% regulation. Input is hardwired only.
The APC SRT8KXLT-IEC provides IEC outlet connectivity (per the model name and IEC designation), Emergency Power Off (EPO) support, Automatic Voltage Regulation (AVR), and a 50/60 Hz selectable output frequency. Output voltage range spans 208 V to 240 V. Agency certifications are not listed in the provided specifications for the APC unit. Battery chemistry is not specified for the APC model in the provided data.
Which should you choose: the SRT8KXLT-IEC or the GXT5LI-8000GVRT3UXLN?
Our take: The SRT8KXLT-IEC is the stronger choice when input power quality is unpredictable or the installation spans multiple international voltage standards, thanks to its 100–275 V input range, 98.5% rated efficiency, and 2% output THD spec. The GXT5LI-8000GVRT3UXLN is better suited to stable 200–240 V single-phase environments where lithium-ion battery longevity (confirmed by IEC 62619 certification), a defined 3U physical footprint (5.25 in × 16.9 in × 35 in / 105 lbs), user-configurable output voltage, and a comprehensive multi-standard certification portfolio are the deciding factors. Key spec gaps limit a fully symmetric comparison: APC provides no physical dimensions or agency certifications; Vertiv provides no efficiency figure, THD, crest factor, or surge joule rating. Buyers requiring EPO integration should note it is specified only on the APC unit.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SRT8KXLT-IEC | Vertiv GXT5LI-8000GVRT3UXLN |
|---|---|---|
| UPS Topology | Double-conversion (Online) | — |
| Power Rating (VA) | 8000 VA | 8000 VA |
| Power Rating (W) | 8000 W | 8000 W |
| Input Voltage Range | 100 V – 275 V | 200 V – 240 V |
| Input Frequency | 40 – 70 Hz | — |
| Output Voltage Range | 208 V – 240 V | 200 – 240 VAC (Default 230 V) |
| Output Voltage Regulation | — | ±1% |
| Output Frequency | 50/60 Hz | — |
| Waveform | Sine | — |
| Efficiency | 98.5% | — |
| Output THD | 2% | — |
| Crest Factor | 3:1 | — |
| Surge Energy Rating | 480 J | — |
| Battery Chemistry | — | Lithium-ion (IEC 62619) |
| Emergency Power Off (EPO) | Yes | — |
| Input Connection | IEC outlets | Hardwired (L1-L2/N-G) |
| Noise Level | 55 dB | — |
| Dimensions (H × W × D) | — | 5.25 in × 16.9 in × 35 in |
| Weight | — | 105 lbs |
| Operating Temperature | — | 32°F – 104°F (0°C – 40°C) |
| Agency Certifications | — | IEC 62040-1, IEC 62619, IEC 62040-2, IEC 61000-3-2, IEC 61000-3-12, CISPR 22 Class A, FCC Part 15 Class A, UL 1778 |
Frequently Asked Questions
Which should you choose: the SRT8KXLT-IEC or the GXT5LI-8000GVRT3UXLN?
The SRT8KXLT-IEC is the stronger choice when input power quality is unpredictable or the installation spans multiple international voltage standards, thanks to its 100–275 V input range, 98.5% rated efficiency, and 2% output THD spec. The GXT5LI-8000GVRT3UXLN is better suited to stable 200–240 V single-phase environments where lithium-ion battery longevity (confirmed by IEC 62619 certification), a defined 3U physical footprint (5.25 in × 16.9 in × 35 in / 105 lbs), user-configurable output voltage, and a comprehensive multi-standard certification portfolio are the deciding factors. Key spec gaps limit a fully symmetric comparison: APC provides no physical dimensions or agency certifications; Vertiv provides no efficiency figure, THD, crest factor, or surge joule rating. Buyers requiring EPO integration should note it is specified only on the APC unit.
Is the SRT8KXLT-IEC or GXT5LI-8000GVRT3UXLN better for installations with unstable or wide-ranging input voltage?
Based on the provided specifications, the APC SRT8KXLT-IEC is the clear choice for wide-ranging input conditions. Its input operating range spans 100 V to 275 V, whereas the Vertiv GXT5LI-8000GVRT3UXLN is rated only for 200 V–240 V input. The APC unit will absorb more severe voltage sags and swells before switching to battery.
Does either UPS use lithium-ion batteries, and does that affect my maintenance planning?
Yes — the Vertiv GXT5LI-8000GVRT3UXLN explicitly carries an IEC 62619 (lithium-ion battery safety) certification, confirming Li-ion chemistry. Lithium-ion cells generally support more charge-discharge cycles and a longer service life than traditional VRLA batteries, which can reduce replacement frequency and total cost of ownership over time. Battery chemistry for the APC SRT8KXLT-IEC is not stated in the provided specifications, so a direct comparison on this point cannot be made from the available data.
Which unit is easier to rack-plan for space-constrained data closets — the SRT8KXLT-IEC or the GXT5LI-8000GVRT3UXLN?
The Vertiv GXT5LI-8000GVRT3UXLN is the only model with physical dimensions available in the provided specifications: 5.25 in H (3U) × 16.9 in W × 35 in D, weighing 105 lbs. No height, width, depth, or weight data is provided for the APC SRT8KXLT-IEC in the supplied specs. If rack-space planning is critical, you should obtain the APC dimensional datasheet before making a final decision.
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