APC by Schneider Electric SMX3000LVNCUS vs Vertiv GXT5-3KL630RT2UXL: Specification Comparison
Both the APC SMX3000LVNCUS and the Vertiv GXT5-3KL630RT2UXL are 3 kVA-class rack/tower UPS units targeting small-to-midsize server rooms, network closets, and edge deployments. The comparison covers topology and power quality, input/output electrical compatibility, and management and monitoring capabilities — the three axes that most directly drive a purchasing decision for runtime-critical infrastructure protection at this power tier.
In This Guide
- Which UPS topology and power-quality architecture better protects sensitive loads?
- Are the input and output voltage, current, and wiring configurations compatible with the intended installation?
- Which unit offers richer remote management, monitoring, and integration options?
- Which should you choose: the SMX3000LVNCUS or the GXT5-3KL630RT2UXL?
- Side-by-Side Specs
- FAQ
Which UPS topology and power-quality architecture better protects sensitive loads?
The APC SMX3000LVNCUS uses a Line-Interactive topology, delivering 2,700 W / 2.88 kVA with a true sine-wave output, Automatic Voltage Regulation (AVR), and a rated output voltage Total Harmonic Distortion (THD) of 5%. It also provides EMI/RFI noise filtering at 55 dB and a surge energy rating of 540 J. Line-Interactive topology corrects brownouts and overvoltages via AVR without switching to battery, but it does transfer to battery for deeper anomalies.
The Vertiv GXT5-3KL630RT2UXL uses an On-line Double-Conversion topology, rated at 3,000 W / 3,000 VA. Double conversion regenerates a clean AC output continuously from DC, meaning the load never transfers to battery — utility power is always filtered through an inverter. Vertiv states efficiency up to 98% in Active ECO Mode and up to 95% in full on-line mode. Output THD, surge joule rating, and AVR specification are not provided in the supplied specs for the GXT5-3KL630RT2UXL.
For loads demanding complete isolation from utility anomalies (harmonics, frequency drift, transients), double-conversion topology is the higher standard. The APC's 55 dB EMI filtering and 540 J surge rating are concrete specs absent from the Vertiv's published data, but the Vertiv's on-line topology inherently eliminates transfer-time risk that the Line-Interactive APC cannot match.
Are the input and output voltage, current, and wiring configurations compatible with the intended installation?
The APC SMX3000LVNCUS is designed for 120 V single-phase North American circuits. It accepts input from 70 V to 153 V (a wide operating window enabling AVR across severe brownouts), with a maximum output of 120 V and a maximum output current of 15 A. Input and output frequency is 50/60 Hz. Specific output receptacle types are not listed in the provided specs.
The Vertiv GXT5-3KL630RT2UXL is designed for 208 V circuits. Input is L6-30P (a 30 A, 208 V twist-lock plug). Outputs are 2× L6-15R and 2× L6-30R receptacles — a 208 V twist-lock format. Input voltage range is described as 208 VAC nominal, variable based on output load; a precise minimum/maximum operating voltage window is not stated in the provided specs.
These two units are electrically incompatible at the outlet and service level: the APC serves 120 V / 15 A single-phase environments while the Vertiv serves 208 V / 30 A single-phase (L6-series) environments. A buyer must match the UPS to their facility's circuit voltage before any other comparison applies. Cross-shopping them requires a confirmed 208 V vs. 120 V infrastructure choice.
Which unit offers richer remote management, monitoring, and integration options?
The APC SMX3000LVNCUS includes built-in web-based management (noted explicitly in specs), an audible alarm, and Emergency Power Off (EPO) capability. The specific network interface or card type enabling web management is not further detailed in the provided specs. EPO is a data-center-grade feature allowing controlled remote shutdown of the UPS output.
The Vertiv GXT5-3KL630RT2UXL provides USB, RS485, RS232, and a terminal block as standard interfaces, plus an external battery connector. SNMP and web management require the optional Vertiv RDU101 communications card — not included as standard. A full-color graphic LCD with gravity-sensing orientation is built in for local status and configuration. Protocols include SNMP and web management (with optional card) and serial for out-of-band management.
The APC lists web-based management as a native capability, whereas the Vertiv requires an optional add-on card for SNMP and web access. The Vertiv offers a broader array of physical interface ports (USB, RS485, RS232, terminal block) as standard, and its color LCD panel with gravity sensing provides more informative local monitoring than the APC's audible alarm indicator alone. EPO is specified only on the APC.
Which should you choose: the SMX3000LVNCUS or the GXT5-3KL630RT2UXL?
Our take: The SMX3000LVNCUS is the stronger choice when the installation runs on 120 V single-phase circuits and prioritizes native web management, EPO capability, and a wide 70–153 V input operating window without add-on cards. The GXT5-3KL630RT2UXL is the stronger choice for 208 V single-phase environments requiring double-conversion topology — which eliminates transfer time entirely compared to the APC's line-interactive design — and delivers up to 98% efficiency in ECO mode versus an unspecified figure for the APC. The Vertiv also provides 3,000 W of output power to the APC's 2,700 W. However, SNMP and web management on the Vertiv require the optional RDU101 card, while the APC includes web management as standard. These units serve different circuit voltages and topologies; they are not interchangeable without a facility wiring assessment.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SMX3000LVNCUS | Vertiv GXT5-3KL630RT2UXL |
|---|---|---|
| Topology | Line-Interactive | On-line Double-Conversion |
| Power Rating (VA) | 2,880 VA | 3,000 VA |
| Power Rating (W) | 2,700 W | 3,000 W |
| Input Voltage (nominal) | 120 V | 208 V |
| Input Voltage Range | 70–153 V | 208 VAC nominal; variable by load |
| Output Voltage | 120 V | 208 VAC |
| Input Connector | — | L6-30P (30 A) |
| Output Receptacles | — | 2× L6-15R, 2× L6-30R |
| Input/Output Frequency | 50/60 Hz | — |
| Efficiency | — | Up to 98% (ECO); up to 95% (on-line) |
| Output THD | 5% | — |
| Surge Energy Rating | 540 J | — |
| EMI/RFI Filtering | 55 dB | — |
| AVR | Yes | — |
| Web Management | Yes (built-in) | Optional (RDU101 card required) |
| Interfaces | — | USB, RS485, RS232, terminal block |
| Emergency Power Off (EPO) | Yes | — |
| Audible Alarm | Yes | — |
| Local Display | — | Full-color graphic LCD (gravity-sensing) |
| Certifications | — | ENERGY STAR 2.0, UL1778, c-UL, RoHS2, REACH |
| Weight | — | 65.1 lb |
| Dimensions (H × W × D) | — | 3.4 × 16.9 × 21.3 in |
| Operating Temperature | — | +32 to +122 °F (0 to 50 °C) |
| Form Factor | Rack/Tower | Rack/Tower |
Frequently Asked Questions
Which should you choose: the SMX3000LVNCUS or the GXT5-3KL630RT2UXL?
The SMX3000LVNCUS is the stronger choice when the installation runs on 120 V single-phase circuits and prioritizes native web management, EPO capability, and a wide 70–153 V input operating window without add-on cards. The GXT5-3KL630RT2UXL is the stronger choice for 208 V single-phase environments requiring double-conversion topology — which eliminates transfer time entirely compared to the APC's line-interactive design — and delivers up to 98% efficiency in ECO mode versus an unspecified figure for the APC. The Vertiv also provides 3,000 W of output power to the APC's 2,700 W. However, SNMP and web management on the Vertiv require the optional RDU101 card, while the APC includes web management as standard. These units serve different circuit voltages and topologies; they are not interchangeable without a facility wiring assessment.
Can I use either UPS on a standard North American 120 V wall outlet?
Only the APC SMX3000LVNCUS is designed for 120 V circuits (70–153 V input range, 120 V output, 15 A maximum). The Vertiv GXT5-3KL630RT2UXL requires a 208 V circuit with an L6-30P input connector and is not compatible with standard 120 V outlets.
Does the Vertiv GXT5-3KL630RT2UXL include SNMP and web management out of the box?
No. According to the provided specs, SNMP and web management on the GXT5-3KL630RT2UXL require the optional Vertiv RDU101 communications card. USB, RS485, RS232, and a terminal block are included as standard interfaces. The APC SMX3000LVNCUS lists web-based management as a built-in feature.
Which unit provides better power quality for sensitive servers or medical-adjacent equipment?
The Vertiv GXT5-3KL630RT2UXL uses on-line double-conversion topology, which continuously regenerates AC output from DC and provides zero transfer time during utility anomalies — a higher protection standard than the APC SMX3000LVNCUS's line-interactive topology. The APC specifies a 5% output THD and 55 dB EMI/RFI filtering; equivalent figures are not provided in the Vertiv's published specs. For the most sensitive loads, double-conversion is the preferred topology, assuming the 208 V circuit requirement is met.
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