APC by Schneider Electric SMTL3000RM2UCNC vs Vertiv GXT5-3KL630RT2UXL: Specification Comparison
Both the APC SMTL3000RM2UCNC and the Vertiv GXT5-3KL630RT2UXL are 3 kVA rackmount UPS units targeting data center, server room, and critical infrastructure deployments. The APC is a line-interactive unit rated for 120 V North American branch circuits, while the Vertiv is an on-line double-conversion unit rated for 208 V circuits with L6-series twist-lock connections. This comparison evaluates topology and power quality, input/output voltage compatibility and wiring, and management interface capabilities — the three axes most consequential for installers selecting a UPS for a specific rack environment.
In This Guide
- Which unit delivers higher power quality and what does the topology difference mean for connected loads?
- Are the input/output voltages and plug types compatible with the target rack and branch circuit?
- What remote monitoring, management, and integration options does each unit support?
- Which should you choose: the SMTL3000RM2UCNC or the GXT5-3KL630RT2UXL?
- Side-by-Side Specs
- FAQ
Which unit delivers higher power quality and what does the topology difference mean for connected loads?
The SMTL3000RM2UCNC uses line-interactive topology, meaning it conditions utility power through an automatic voltage regulator (AVR) and switches to battery only when input voltage falls outside its 82–144 V operating window. It delivers a true sine-wave output with ±5% voltage regulation and is rated at 2,700 W (90% power factor). Efficiency is specified at 96%.
The GXT5-3KL630RT2UXL uses on-line double-conversion topology, which means all load power continuously passes through the inverter regardless of utility quality — providing zero transfer time to battery and complete isolation from input anomalies. Its output is 208 VAC. Efficiency is specified at up to 98% in Active ECO Mode and up to 95% in standard on-line mode. Output power is 3,000 W (100% power factor at 3,000 VA), a meaningful difference from the APC's 2,700 W.
For loads sensitive to even momentary power transitions or harmonic distortion — medical equipment, precision instruments, or high-density server farms — double-conversion topology is the more protective choice. Line-interactive is a well-proven, cost-effective architecture for less sensitive IT loads where transfer-time tolerance exists.
Are the input/output voltages and plug types compatible with the target rack and branch circuit?
The SMTL3000RM2UCNC is designed for 120 V North American environments. Its input accepts 82–144 V (nominal 120 V) at 50/60 Hz. Output is 120 V delivered through 8 NEMA 5-15R and NEMA 5-20R receptacles — compatible with standard North American server and networking gear without step-down adapters.
The GXT5-3KL630RT2UXL operates at 208 VAC input and output. The input plug is L6-30P (a 208 V twist-lock), and outputs are 2× L6-15R and 2× L6-30R. This unit targets facilities with 208 V PDUs, dedicated 30 A circuits, or three-phase infrastructure common in larger data centers. It is not interchangeable with a 120 V branch circuit without rewiring.
Voltage and plug compatibility are typically non-negotiable. The two units serve fundamentally different electrical environments: 120 V single-phase for the APC, 208 V single-phase for the Vertiv. Installers must confirm their facility's available branch circuit voltage before selection.
What remote monitoring, management, and integration options does each unit support?
The SMTL3000RM2UCNC includes a USB port and a serial interface as specified. No network management card, SNMP capability, or display specification is listed in the provided specs.
The GXT5-3KL630RT2UXL offers USB, RS-485, RS-232, a terminal block, and an external battery connector. SNMP and web-based management are enabled via the optional Vertiv RDU101 communications card (not included as standard). The unit also features a full-color graphic LCD control panel with gravity-sensing orientation for status visibility during installation. Certifications include ENERGY STAR 2.0, UL1778, c-UL, RoHS2, and REACH.
Neither unit ships with built-in network management as a standard included feature based on the provided specs — both require either the optional card (Vertiv) or an external network management card solution (APC, not specified in provided data). The Vertiv provides more physical interface options (RS-485, RS-232, terminal block) and a richer front-panel display per the listed specifications.
Which should you choose: the SMTL3000RM2UCNC or the GXT5-3KL630RT2UXL?
Our take: The SMTL3000RM2UCNC is the stronger choice when the target environment runs 120 V North American branch circuits and the load mix can tolerate line-interactive transfer times. The GXT5-3KL630RT2UXL is the stronger choice for 208 V facilities requiring zero-transfer-time, on-line double-conversion protection. Three concrete spec deltas define the decision: topology (line-interactive vs. on-line double-conversion), output wattage (2,700 W vs. 3,000 W), and operating voltage (120 V with NEMA outlets vs. 208 V with L6 twist-locks). The Vertiv also carries ENERGY STAR 2.0 certification — not listed for the APC in the provided specs. These two units are not interchangeable substitutes; the primary qualifier is the facility's branch circuit voltage and plug infrastructure, making a side-by-side price comparison secondary to electrical compatibility.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SMTL3000RM2UCNC | Vertiv GXT5-3KL630RT2UXL |
|---|---|---|
| UPS Topology | Line-Interactive | On-Line Double-Conversion |
| Power Rating (VA) | 3,000 VA | 3,000 VA |
| Power Rating (Watts) | 2,700 W | 3,000 W |
| Power Factor | 0.90 | 1.00 |
| Input Voltage (Nominal) | 120 V | 208 V |
| Input Voltage Range | 82–144 V | 208 VAC nominal; variable by load |
| Output Voltage | 120 V | 208 V |
| Input Frequency | 50/60 Hz | — |
| Output Frequency | 50/60 Hz | — |
| Output Voltage Regulation | ±5% | — |
| Efficiency | 96% | Up to 98% (ECO); up to 95% (on-line) |
| Input Plug Type | — | L6-30P |
| Output Receptacles | 8× (NEMA 5-15R, NEMA 5-20R) | 2× L6-15R, 2× L6-30R |
| Surge Energy Rating | 459 J | — |
| Noise Level | 55 dB | — |
| Management Interfaces | USB, Serial | USB, RS-485, RS-232, Terminal Block; SNMP via optional card |
| Display | — | Full-color graphic LCD |
| Certifications | — | ENERGY STAR 2.0, UL1778, c-UL, RoHS2, REACH |
| Form Factor | 2U Rackmount | 2U Rack/Tower |
| Operating Temperature | — | +32 to +122 °F (0 to 50 °C) |
| Weight | — | 65.1 lb |
| Dimensions (H×W×D) | — | 3.4 × 16.9 × 21.3 in |
Frequently Asked Questions
Which should you choose: the SMTL3000RM2UCNC or the GXT5-3KL630RT2UXL?
The SMTL3000RM2UCNC is the stronger choice when the target environment runs 120 V North American branch circuits and the load mix can tolerate line-interactive transfer times. The GXT5-3KL630RT2UXL is the stronger choice for 208 V facilities requiring zero-transfer-time, on-line double-conversion protection. Three concrete spec deltas define the decision: topology (line-interactive vs. on-line double-conversion), output wattage (2,700 W vs. 3,000 W), and operating voltage (120 V with NEMA outlets vs. 208 V with L6 twist-locks). The Vertiv also carries ENERGY STAR 2.0 certification — not listed for the APC in the provided specs. These two units are not interchangeable substitutes; the primary qualifier is the facility's branch circuit voltage and plug infrastructure, making a side-by-side price comparison secondary to electrical compatibility.
Can I use the SMTL3000RM2UCNC or the GXT5-3KL630RT2UXL on a standard 120 V wall outlet?
Only the SMTL3000RM2UCNC is designed for 120 V circuits; it accepts input from 82–144 V and uses standard NEMA 5-15R and 5-20R outlets. The GXT5-3KL630RT2UXL requires a 208 V circuit with an L6-30P twist-lock input — it cannot be plugged into a standard 120 V North American outlet.
Which unit offers better protection for sensitive servers or medical-grade equipment?
The GXT5-3KL630RT2UXL uses on-line double-conversion topology, which continuously regenerates output power and provides zero transfer time to battery, fully isolating loads from input anomalies. The SMTL3000RM2UCNC uses line-interactive topology, which does involve a brief transfer to battery when utility voltage falls outside its operating window. For the most sensitive loads, double-conversion is the more protective architecture based on the specified topologies.
Does either unit include built-in network management for remote monitoring out of the box?
Based on the provided specifications, neither unit includes built-in SNMP or web-based network management as a standard included feature. The GXT5-3KL630RT2UXL supports SNMP and web management via the optional Vertiv RDU101 communications card. The SMTL3000RM2UCNC lists USB and serial interfaces; network management card capability is not specified in the provided specs.
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