APC by Schneider Electric SURT15KRMXLI vs Vertiv GXT5-15KMVRT11UXLN: Specification Comparison
Both the APC by Schneider Electric SURT15KRMXLI and the Vertiv Liebert GXT5-15KMVRT11UXLN are 15 kVA rack-mount, online double-conversion UPS units targeting data centers, server rooms, and critical infrastructure deployments. The comparison evaluates power and efficiency architecture, physical and environmental characteristics, and management and integration capabilities — the three axes that most directly drive a B2B buyer's decision at this capacity tier.
In This Guide
- How do the two units compare on power capacity, output fidelity, and efficiency?
- What are the physical footprint, weight, and environmental operating parameters of each unit?
- How do the units differ in management interfaces, monitoring protocols, and site-integration features?
- Which should you choose: the SURT15KRMXLI or the GXT5-15KMVRT11UXLN?
- Side-by-Side Specs
- FAQ
How do the two units compare on power capacity, output fidelity, and efficiency?
Both units share the same UPS topology — online double-conversion — and are rated at 15 kVA. However, their watt ratings diverge: the SURT15KRMXLI is rated at 12,000 W (80% power factor), while the GXT5-15KMVRT11UXLN is rated at 15,000 W (100% power factor). This is a meaningful operational difference: at full load, the Vertiv unit delivers 3,000 W more usable power without derating.
On efficiency, the SURT15KRMXLI is spec'd at 95% in online mode. The GXT5-15KMVRT11UXLN reaches up to 95% in online mode as well, but also offers an Active ECO Mode rated at up to 98% — a mode that can reduce heat output and energy costs in non-critical or low-risk environments. Neither unit's runtime curves or battery capacity specifications are provided in the supplied data.
The SURT15KRMXLI outputs 220–240 V (single-phase, IEC C19 outlets) at 50/60 Hz with a 3:1 crest factor, suitable for European and international deployments. The GXT5-15KMVRT11UXLN outputs 208/120 VAC (user-configurable) with hardwired input/output, oriented toward North American infrastructure. Input voltage range is specified for the Vertiv (176–280 VAC typical 208 VAC) but not explicitly stated in the provided specs for the APC unit.
What are the physical footprint, weight, and environmental operating parameters of each unit?
Physical dimensions and weight are provided only for the GXT5-15KMVRT11UXLN: 19.0 in (H) × 16.9 in (W) × 26.7 in (D), weighing 396.6 lbs. No weight or dimensional data is provided in the supplied specifications for the SURT15KRMXLI, which limits a direct rack-space and floor-load comparison.
Operating temperature range is specified only for the GXT5-15KMVRT11UXLN at +32 to +104 °F (0 to +40 °C). No operating temperature range is provided in the supplied specs for the SURT15KRMXLI.
The GXT5-15KMVRT11UXLN carries formal certifications listed in its specs: ENERGY STAR 2.0, UL1778, c-UL, RoHS2, and REACH. No equivalent certification data is present in the supplied SURT15KRMXLI specifications. The noise level for the SURT15KRMXLI is specified at 50 dB; no acoustic spec is provided for the Vertiv unit.
How do the units differ in management interfaces, monitoring protocols, and site-integration features?
The GXT5-15KMVRT11UXLN ships with a factory pre-installed Vertiv Liebert IntelliSlot RDU120 SNMP/Webcard, enabling out-of-the-box SNMP and web-based monitoring. Additional interfaces include USB, RS485, RS232, a terminal block, and an external battery connector. A full-color graphic LCD with gravity-sensing orientation is included for local status visibility.
The supplied specifications for the SURT15KRMXLI do not enumerate management interfaces, network card options, or communication protocols. The presence or absence of an SNMP card, LCD panel, or serial ports cannot be confirmed from the provided data.
Both units support Emergency Power Off (EPO) per their specs — though this is explicitly stated only for the SURT15KRMXLI; the Vertiv spec does not reference EPO by name in the provided data. The SURT15KRMXLI spec also confirms audible alarms, auto-restart, and surge protection. The GXT5-15KMVRT11UXLN's wiring is hardwired in/out with optional Power Output Distribution (POD) modules available for downstream outlet flexibility.
Which should you choose: the SURT15KRMXLI or the GXT5-15KMVRT11UXLN?
Our take: The GXT5-15KMVRT11UXLN is the stronger choice when maximum usable wattage, built-in network management, and formal North American certifications are the primary requirements. It delivers 15,000 W versus the SURT15KRMXLI's 12,000 W — a 25% advantage in real power output at the same VA rating. Its Active ECO Mode efficiency reaches up to 98% versus the APC's specified 95% in online mode, a meaningful difference at sustained high loads. It also ships with a factory-installed SNMP/Webcard and USB/RS485/RS232 interfaces ready for datacenter monitoring, whereas the supplied SURT15KRMXLI specs do not confirm equivalent management capabilities. The SURT15KRMXLI is the better fit for 230 V single-phase European or international deployments with IEC C19 outlet requirements, where its explicitly stated 50 dB noise rating, crest factor, and EPO support are confirmed. Buyers running 208/120 VAC North American infrastructure who need 15 kW true output and out-of-box SNMP should favor the Vertiv.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SURT15KRMXLI | Vertiv GXT5-15KMVRT11UXLN |
|---|---|---|
| Topology | Online Double-Conversion | Online Double-Conversion |
| Power Rating (VA) | 15,000 VA | 15,000 VA |
| Power Rating (Watts) | 12,000 W | 15,000 W |
| Power Factor | 0.8 (derived) | 1.0 (unity) |
| Output Voltage | 220–240 V | 208/120 VAC (user-configurable) |
| Input Voltage Range | — | 176–280 VAC (typical 208 VAC) |
| Input Frequency | 40–70 Hz | — |
| Output Frequency | 50/60 Hz | — |
| Efficiency (Online) | 95% | Up to 95% |
| Efficiency (ECO Mode) | — | Up to 98% |
| Waveform | Sine | — |
| Outlet Type | IEC C19 | Hardwired (optional PODs) |
| Network Management | — | Factory SNMP/Webcard (RDU120); USB, RS485, RS232 |
| Display | — | Full-color graphic LCD (gravity-sensing) |
| Certifications | — | ENERGY STAR 2.0, UL1778, c-UL, RoHS2, REACH |
| Noise Level | 50 dB | — |
| EPO | Yes | — |
| Weight | — | 396.6 lbs |
| Dimensions (H×W×D) | — | 19.0 × 16.9 × 26.7 in |
| Operating Temperature | — | +32 to +104 °F (0 to +40 °C) |
Frequently Asked Questions
Which should you choose: the SURT15KRMXLI or the GXT5-15KMVRT11UXLN?
The GXT5-15KMVRT11UXLN is the stronger choice when maximum usable wattage, built-in network management, and formal North American certifications are the primary requirements. It delivers 15,000 W versus the SURT15KRMXLI's 12,000 W — a 25% advantage in real power output at the same VA rating. Its Active ECO Mode efficiency reaches up to 98% versus the APC's specified 95% in online mode, a meaningful difference at sustained high loads. It also ships with a factory-installed SNMP/Webcard and USB/RS485/RS232 interfaces ready for datacenter monitoring, whereas the supplied SURT15KRMXLI specs do not confirm equivalent management capabilities. The SURT15KRMXLI is the better fit for 230 V single-phase European or international deployments with IEC C19 outlet requirements, where its explicitly stated 50 dB noise rating, crest factor, and EPO support are confirmed. Buyers running 208/120 VAC North American infrastructure who need 15 kW true output and out-of-box SNMP should favor the Vertiv.
Which unit actually delivers more usable power — the SURT15KRMXLI or the GXT5-15KMVRT11UXLN?
The GXT5-15KMVRT11UXLN delivers more usable power. Although both are rated 15 kVA, the Vertiv unit is rated at 15,000 W (unity power factor), while the APC SURT15KRMXLI is rated at 12,000 W (0.8 power factor). That is a 3,000 W difference under full load — relevant when sizing for high-density server loads.
Does the SURT15KRMXLI or the GXT5-15KMVRT11UXLN include network management out of the box?
Based on the provided specifications, only the GXT5-15KMVRT11UXLN is confirmed to include a factory pre-installed network management card (Vertiv Liebert IntelliSlot RDU120 with SNMP and web management), along with USB, RS485, and RS232 interfaces. The supplied SURT15KRMXLI specifications do not reference any network card, SNMP capability, or communication interfaces, so that capability cannot be confirmed from the available data.
Which unit is suited for European 230 V deployments versus North American 208/120 V infrastructure?
The SURT15KRMXLI is designed for European and international deployments: it outputs 220–240 V with IEC C19 outlets. The GXT5-15KMVRT11UXLN outputs 208/120 VAC (user-configurable) with hardwired connections and is oriented toward North American infrastructure. Buyers should match the unit to their facility's input voltage standard and local outlet/wiring requirements before selecting either model.
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