APC by Schneider Electric SRT6KXLI vs Vertiv GXT5LI-6000MVRT3UXLN: Specification Comparison
Both the APC Smart-UPS SRT6KXLI and the Vertiv GXT5 GXT5LI-6000MVRT3UXLN are 6000VA double-conversion online UPS units targeting critical infrastructure environments such as data closets, edge deployments, and mid-size server rooms. Each delivers true sine-wave output and online topology for zero-transfer-time protection. The key differentiators center on input/output voltage architecture, battery chemistry, certifications, and interface options — areas that heavily influence site compatibility and ongoing manageability for IT buyers and installers.
In This Guide
- Which unit fits your site's voltage and wiring requirements?
- How do these units compare on efficiency, output quality, and protection specs?
- What are the physical footprint, battery technology, and management interface differences?
- Which should you choose: the SRT6KXLI or the GXT5LI-6000MVRT3UXLN?
- Side-by-Side Specs
- FAQ
Which unit fits your site's voltage and wiring requirements?
The SRT6KXLI is designed for 230V single-phase environments, accepting input from 100V to 275V across a wide 40–70 Hz frequency window. Its output is selectable between 220V and 240V at 50/60 Hz. This makes it a natural fit for international 230V deployments or regions with unstable grid frequency.
The GXT5LI-6000MVRT3UXLN targets North American dual-voltage infrastructure. It accepts 120V or 240V input and delivers 120V/208V output — user-configurable to 120V/240V — via hardwired termination (L1, L2, N, G). The hardwired connection implies a dedicated circuit and potentially licensed electrical work at installation, which adds a planning consideration versus plug-and-play approaches. Input voltage range details beyond '120V/240V' are not specified in the provided Vertiv data.
Buyers must confirm site voltage before cross-shopping these units: the SRT6KXLI is not a like-for-like replacement in a 120V/208V North American rack environment, and the GXT5LI-6000MVRT3UXLN is not suitable for 230V-only sites.
How do these units compare on efficiency, output quality, and protection specs?
The SRT6KXLI specifies a 94.4% efficiency rating, a 3% maximum output voltage THD under linear load, and a 3:1 crest factor — all published figures that allow direct infrastructure planning. Surge energy rating is stated at 480 joules. The unit also carries an Emergency Power Off (EPO) function, a feature relevant to data center safety compliance.
The GXT5LI-6000MVRT3UXLN does not provide efficiency percentage, output THD, crest factor, surge energy rating, or EPO status in the supplied specifications. Buyers requiring these figures for energy audits, generator compatibility assessments, or data center safety standards (such as TIA-942) will need to consult the Vertiv datasheet directly.
On certifications, the GXT5LI-6000MVRT3UXLN carries a detailed listing: UL 1778, UL 1642, UL 1973, CSA 22.2 No. 107.3, FCC Part 15 Class A, and Energy Star 2.0. Certifications for the SRT6KXLI are not included in the provided spec data.
What are the physical footprint, battery technology, and management interface differences?
The GXT5LI-6000MVRT3UXLN provides explicit physical dimensions: 5.2 in H × 16.9 in W × 35 in D, weighing 100 lbs in a 3U rackmount form factor. It uses lithium-ion battery chemistry — confirmed by its UL 1642 and UL 1973 Li-Ion listings — which typically offers longer service life, faster recharge, and reduced weight compared to VRLA alternatives. Management interfaces include a serial port, USB, and a network RJ-45 port (via RDU101 card).
Physical dimensions, weight, rack unit height, and battery chemistry for the SRT6KXLI are not included in the provided specifications. The SRT6KXLI's management interface options are likewise not listed in the supplied data. Buyers evaluating rack space allocation or remote monitoring capability for the APC unit will need to source those figures from APC documentation.
The noise level of the SRT6KXLI is specified at 55 dB — a figure not provided for the GXT5LI-6000MVRT3UXLN, which may matter in open-office or noise-sensitive deployments.
Which should you choose: the SRT6KXLI or the GXT5LI-6000MVRT3UXLN?
Our take: The GXT5LI-6000MVRT3UXLN is the stronger choice for North American 120V/208V rackmount deployments requiring lithium-ion battery technology and documented regulatory certifications. It ships with confirmed Li-Ion chemistry (UL 1642/1973 listed), specifies a 3U × 35-inch rackmount chassis at 100 lbs, and offers network, USB, and serial management interfaces — all from the provided specs. The SRT6KXLI is the stronger choice for 230V international sites or variable-grid environments: it covers 100–275V input across 40–70 Hz, publishes a 94.4% efficiency rating and 3% output THD, and includes a documented EPO function absent from the Vertiv's provided data. The critical caveat is that each unit's missing specs — Vertiv lacks efficiency and EPO data; APC lacks physical dimensions and certifications — mean neither comparison is complete on those axes. Platform qualifier: specify site voltage and rack constraints before selecting.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SRT6KXLI | Vertiv GXT5LI-6000MVRT3UXLN |
|---|---|---|
| UPS Topology | Double-Conversion Online | Double-Conversion Online |
| Power Rating | 6000VA / 6000W | 6000VA / 6000W |
| Input Voltage Range | 100V – 275V | 120V / 240V |
| Input Frequency Range | 40 – 70 Hz | — |
| Output Voltage Range | 220V – 240V | 120V/208V (120V/240V user-configurable) |
| Output Frequency | 50/60 Hz | — |
| Output Waveform | Sine | — |
| Efficiency | 94.4% | — |
| Output Voltage THD | 3% | — |
| Crest Factor | 3:1 | — |
| Surge Energy Rating | 480 J | — |
| Emergency Power Off (EPO) | Yes | — |
| Noise Level | 55 dB | — |
| Battery Chemistry | — | Lithium-Ion (UL 1642 / UL 1973) |
| Management Interfaces | — | Serial, USB, Network RJ-45 (RDU101) |
| Wiring / Connection | — | Hardwired (L1, L2, N, G) |
| Physical Dimensions (H×W×D) | — | 5.2 in × 16.9 in × 35 in |
| Weight | — | 100 lbs |
| Certifications | — | UL 1778, UL 1642, UL 1973, CSA 22.2 No. 107.3, FCC Part 15 Class A, Energy Star 2.0 |
Frequently Asked Questions
Which should you choose: the SRT6KXLI or the GXT5LI-6000MVRT3UXLN?
The GXT5LI-6000MVRT3UXLN is the stronger choice for North American 120V/208V rackmount deployments requiring lithium-ion battery technology and documented regulatory certifications. It ships with confirmed Li-Ion chemistry (UL 1642/1973 listed), specifies a 3U × 35-inch rackmount chassis at 100 lbs, and offers network, USB, and serial management interfaces — all from the provided specs. The SRT6KXLI is the stronger choice for 230V international sites or variable-grid environments: it covers 100–275V input across 40–70 Hz, publishes a 94.4% efficiency rating and 3% output THD, and includes a documented EPO function absent from the Vertiv's provided data. The critical caveat is that each unit's missing specs — Vertiv lacks efficiency and EPO data; APC lacks physical dimensions and certifications — mean neither comparison is complete on those axes. Platform qualifier: specify site voltage and rack constraints before selecting.
Can I use the SRT6KXLI or GXT5LI-6000MVRT3UXLN on a standard North American 120V circuit?
Based on the provided specs, the GXT5LI-6000MVRT3UXLN accepts 120V or 240V input and is designed for the North American market; however, it uses hardwired termination, so a dedicated circuit with licensed electrical installation is required — not a standard outlet. The SRT6KXLI is specified for 230V environments (input range 100–275V) and is not indicated for 120V North American use in the supplied data. Confirm site voltage and wiring with both manufacturers before purchase.
Does either UPS use lithium-ion batteries, and why does that matter?
The GXT5LI-6000MVRT3UXLN is confirmed as a lithium-ion unit by its UL 1642 (Li-Ion Battery Cells) and UL 1973 (Li-Ion Battery Pack w/UPS) certifications listed in the provided specs. Lithium-ion batteries typically offer longer calendar life, faster recharge, and lighter weight than traditional VRLA. Battery chemistry for the SRT6KXLI is not specified in the provided data; consult APC documentation to confirm.
Which unit supports remote network monitoring out of the box?
The GXT5LI-6000MVRT3UXLN lists a network RJ-45 interface (via RDU101), serial port, and USB in its provided specifications, indicating network management capability. Network or SNMP interface options for the SRT6KXLI are not included in the provided spec data. Buyers requiring out-of-the-box remote monitoring should verify APC's interface card availability separately.
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