APC by Schneider Electric SRT6KRMXLT-IEC vs Vertiv GXT5LI-6000MVRT3UXLN: Specification Comparison
Both the APC Smart-UPS SRT6KRMXLT-IEC and the Vertiv GXT5 GXT5LI-6000MVRT3UXLN are 6000VA double-conversion online UPS units designed for rackmount data center and critical infrastructure deployments. Both share the same VA/watt rating and online topology, making them direct cross-shop candidates for IT buyers and integrators specifying three-phase-capable or high-density power protection at the 6kVA tier. The comparison covers power and input/output flexibility, physical and environmental specs, and management and compliance capabilities.
In This Guide
- How do input voltage range and output flexibility compare between the SRT6KRMXLT-IEC and the GXT5LI-6000MVRT3UXLN?
- What do the physical dimensions, weight, and operating environment specs reveal about installation fit for the SRT6KRMXLT-IEC versus the GXT5LI-6000MVRT3UXLN?
- How do management interfaces, safety certifications, and alarm capabilities differ between the SRT6KRMXLT-IEC and the GXT5LI-6000MVRT3UXLN?
- Which should you choose: the SRT6KRMXLT-IEC or the GXT5LI-6000MVRT3UXLN?
- Side-by-Side Specs
- FAQ
How do input voltage range and output flexibility compare between the SRT6KRMXLT-IEC and the GXT5LI-6000MVRT3UXLN?
The APC SRT6KRMXLT-IEC accepts a wide input voltage window of 100 V to 275 V at 40–70 Hz, giving it broad compatibility with international and unstable utility feeds. Its output is fixed at 208–240 V with a sine waveform, 50/60 Hz, and is rated at 6000 VA / 6000 W with a crest factor of 3:1 and output voltage THD of 2%.
The Vertiv GXT5LI-6000MVRT3UXLN is rated 6000 VA / 6000 W and accepts 120 V or 240 V input. Its output is 120 V / 208 V standard, with user-configurable 120 V / 240 V output. Wiring is hardwired (L1, L2, N, G). Input frequency range, output THD, crest factor, and surge energy rating are not specified in the provided data.
For buyers requiring a wide international input window or an explicit surge energy rating, the APC spec sheet provides those numbers (480 J surge, 100–275 V range). The Vertiv offers user-configurable output voltage as a differentiator, but several key power-quality specs are absent from the provided data.
What do the physical dimensions, weight, and operating environment specs reveal about installation fit for the SRT6KRMXLT-IEC versus the GXT5LI-6000MVRT3UXLN?
The Vertiv GXT5LI-6000MVRT3UXLN provides explicit physical dimensions: 5.2 in H × 16.9 in W × 35 in D, weighing 100 lbs, with an operating temperature range of 32°F to 104°F (0°C to 40°C) with 10% derating at 50°C. The 5.2-inch height indicates a 3U rackmount profile.
The APC SRT6KRMXLT-IEC does not include weight, height, width, depth, or operating temperature in the provided specifications. Installers needing to confirm rack unit count, cabinet depth clearance, or ambient temperature tolerance for the APC unit must consult the manufacturer datasheet directly.
For physical planning purposes, the Vertiv's published dimensions and weight allow immediate rack and floor-load calculations. The APC's absence of these specs in the provided data creates a gap that could delay infrastructure planning without an additional datasheet lookup.
How do management interfaces, safety certifications, and alarm capabilities differ between the SRT6KRMXLT-IEC and the GXT5LI-6000MVRT3UXLN?
The APC SRT6KRMXLT-IEC specifies web-based management, audible alarms, Emergency Power Off (EPO), and surge protection. Specific interface ports (USB, serial, network card) and safety certifications are not listed in the provided data.
The Vertiv GXT5LI-6000MVRT3UXLN lists Serial Port, Network RJ-45 (via RDU101 card), and USB as interface options. Its certifications are explicitly enumerated: UL 1642 (Li-Ion Battery Cells), UL 1973 (Li-Ion Battery Pack with UPS), UL 1778, CSA 22.2 No. 107.3, c-UL, FCC Part 15 Class A, and Energy Star 2.0. The Vertiv also uses a lithium-ion battery chemistry, as indicated by the UL 1642 and UL 1973 listings.
The Vertiv's published certifications—particularly Energy Star 2.0 and the Li-Ion UL listings—are directly relevant for procurement compliance, green-building credits, and data center efficiency mandates. The APC unit's certifications and specific port configurations are not available in the provided specs, requiring vendor documentation to close that gap.
Which should you choose: the SRT6KRMXLT-IEC or the GXT5LI-6000MVRT3UXLN?
Our take: The GXT5LI-6000MVRT3UXLN is the stronger choice when physical planning data, safety certifications, and battery chemistry transparency are procurement requirements. Three concrete spec deltas support this: first, the Vertiv publishes full physical dimensions (5.2 in H × 16.9 in W × 35 in D, 100 lbs) while the APC provides none in the supplied data, making rack and floor-load planning immediately actionable only for the Vertiv; second, the Vertiv carries explicit certifications including Energy Star 2.0 and UL 1973 (Li-Ion Battery Pack with UPS), which the APC data does not list; third, the Vertiv's user-configurable 120 V / 240 V output adds flexibility the APC's fixed 208–240 V output does not. Conversely, the SRT6KRMXLT-IEC specifies a broader input voltage range (100–275 V), a 480 J surge energy rating, 2% output THD, and EPO—specs absent from the Vertiv data—making it the better-documented choice for international deployments or environments with wide utility voltage swings.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SRT6KRMXLT-IEC | Vertiv GXT5LI-6000MVRT3UXLN |
|---|---|---|
| UPS Topology | Double-Conversion (Online) | Double-Conversion Online |
| Power Rating (VA) | 6000 VA | 6000 VA |
| Power Rating (Watts) | 6000 W | 6000 W |
| Output Waveform | Sine | — |
| Input Voltage Range | 100 V – 275 V | 120 V / 240 V |
| Input Frequency Range | 40 – 70 Hz | — |
| Output Voltage | 208 V – 240 V | 120 V / 208 V (120 V / 240 V user-configurable) |
| Output Frequency | 50 / 60 Hz | — |
| Output THD | 2% | — |
| Crest Factor | 3:1 | — |
| Surge Energy Rating | 480 J | — |
| Emergency Power Off (EPO) | Yes | — |
| Audible Alarms | Yes | — |
| Web / Network Management | Web-based management | Network RJ-45 (RDU101), Serial Port, USB |
| Safety Certifications | — | UL 1642, UL 1973, UL 1778, CSA 22.2 No. 107.3, c-UL, FCC Part 15 Class A, Energy Star 2.0 |
| Battery Chemistry | — | Lithium-Ion (per UL 1642 / UL 1973) |
| Wiring / Connector | IEC output (per SKU) | Hardwired (L1, L2, N, G) |
| Operating Temperature | — | 32°F – 104°F (0°C – 40°C); 10% derating at 50°C |
| Height | — | 5.2 in |
| Width | — | 16.9 in |
| Depth | — | 35 in |
| Weight | — | 100 lbs |
| Noise Level | 55 dB | — |
Frequently Asked Questions
Which should you choose: the SRT6KRMXLT-IEC or the GXT5LI-6000MVRT3UXLN?
The GXT5LI-6000MVRT3UXLN is the stronger choice when physical planning data, safety certifications, and battery chemistry transparency are procurement requirements. Three concrete spec deltas support this: first, the Vertiv publishes full physical dimensions (5.2 in H × 16.9 in W × 35 in D, 100 lbs) while the APC provides none in the supplied data, making rack and floor-load planning immediately actionable only for the Vertiv; second, the Vertiv carries explicit certifications including Energy Star 2.0 and UL 1973 (Li-Ion Battery Pack with UPS), which the APC data does not list; third, the Vertiv's user-configurable 120 V / 240 V output adds flexibility the APC's fixed 208–240 V output does not. Conversely, the SRT6KRMXLT-IEC specifies a broader input voltage range (100–275 V), a 480 J surge energy rating, 2% output THD, and EPO—specs absent from the Vertiv data—making it the better-documented choice for international deployments or environments with wide utility voltage swings.
Is the SRT6KRMXLT-IEC or GXT5LI-6000MVRT3UXLN better for international or wide-voltage-range installations?
Based on the provided specs, the APC SRT6KRMXLT-IEC has a documented input voltage range of 100 V to 275 V at 40–70 Hz, which explicitly covers a broad international range. The Vertiv GXT5LI-6000MVRT3UXLN lists 120 V / 240 V input but does not specify a continuous operating voltage window or frequency range in the provided data, so a direct comparison cannot be made on that dimension without consulting the Vertiv datasheet.
Which unit is easier to plan for in a rack or data center build-out?
The Vertiv GXT5LI-6000MVRT3UXLN is easier to plan for based on available specs: it provides height (5.2 in / ~3U), width (16.9 in), depth (35 in), weight (100 lbs), and an operating temperature range (32°F–104°F / 0°C–40°C). None of those physical or environmental specs appear in the provided APC SRT6KRMXLT-IEC data, so rack-space and floor-load calculations for the APC require a separate datasheet lookup.
Does either UPS use lithium-ion batteries, and does that affect compliance or procurement?
Yes. The Vertiv GXT5LI-6000MVRT3UXLN is explicitly rated to UL 1642 (Li-Ion Battery Cells) and UL 1973 (Li-Ion Battery Pack with UPS), confirming lithium-ion chemistry. This is relevant for shipping classifications, facility fire codes, and insurance requirements. The APC SRT6KRMXLT-IEC's provided specs do not identify battery chemistry or carry UL 1642 / UL 1973 listings, so battery type for the APC unit cannot be confirmed from the data supplied.
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