APC by Schneider Electric SRT3000RMXLA-NC vs Vertiv GXT5-3KL620RT2UXL: Specification Comparison
Both the APC SRT3000RMXLA-NC and the Vertiv GXT5-3KL620RT2UXL are 3 kVA rack-mount, double-conversion (online) UPS units targeting IT closets, server rooms, and light data-center deployments where zero transfer time and output power conditioning are required. The comparison covers power and voltage architecture, physical and environmental characteristics, and management and connectivity — the three axes that most directly determine suitability for a given rack installation.
In This Guide
- Which unit fits your input voltage and output receptacle requirements?
- What are the physical footprint and environmental operating limits of each unit?
- Which unit offers more management and monitoring integration out of the box?
- Which should you choose: the SRT3000RMXLA-NC or the GXT5-3KL620RT2UXL?
- Side-by-Side Specs
- FAQ
Which unit fits your input voltage and output receptacle requirements?
The APC SRT3000RMXLA-NC is a 120 V single-phase unit. Its input plug is a NEMA L5-30P and it delivers 2,700 W across nine outlets: eight NEMA 5-20R and one NEMA L5-30R. Input frequency acceptance spans 40–70 Hz, and output frequency is 50/60 Hz. This broad input-frequency window is useful in mixed-grid or generator-backed environments.
The Vertiv GXT5-3KL620RT2UXL operates at 208 VAC nominal, with an L6-20P input plug and four output receptacles: two L6-15R and two L6-20R. At 208 V, its full rated output is 3,000 W versus the APC's 2,700 W — a 300 W advantage attributable to the higher input voltage. Input voltage range for the Vertiv is described as variable based on output load; no fixed min/max Hz range is provided in the supplied specs.
The two units are not interchangeable at the circuit level: the APC requires a 120 V/L5-30P circuit; the Vertiv requires a 208 V/L6-20P circuit. Buyers must match the unit to their facility's existing PDU or panel capacity before any other comparison factor applies.
What are the physical footprint and environmental operating limits of each unit?
Physical dimensions and weight are specified only for the Vertiv GXT5-3KL620RT2UXL: 3.4 in H × 16.9 in W × 21.3 in D, weighing 65.1 lb. Both units are described as 2U rack-mount form factors per their product naming. The Vertiv's operating temperature is rated +32 to +122 °F (0 to 50 °C), a notably wide thermal envelope that accommodates warmer equipment rooms or edge deployments.
The APC SRT3000RMXLA-NC does not provide weight, height, width, depth, or operating temperature in the supplied specifications. Installers requiring exact rack and floor-load data for the APC must consult the manufacturer datasheet directly.
The Vertiv also carries formal certifications listed in the specs: ENERGY STAR 2.0, UL1778, c-UL, RoHS2, and REACH. No equivalent listings are cited in the APC specifications provided, though this does not confirm their absence — only that they were not supplied here.
Which unit offers more management and monitoring integration out of the box?
The APC SRT3000RMXLA-NC includes web-based management as a standard, built-in feature per its spec sheet, along with audible alarms and auto-restart capability. No interface port types, protocols, or optional card details are specified in the supplied data.
The Vertiv GXT5-3KL620RT2UXL provides USB, RS485, RS232, a terminal block, and an external battery connector as standard interfaces. SNMP and full web management require the optional Vertiv RDU101 communications card — this is not included by default. The unit also features a full-color graphic LCD with gravity-sensing orientation for local status monitoring.
For environments where SNMP integration with an NMS or UPS monitoring platform is mandatory, the APC's built-in web management has a practical edge over the Vertiv's out-of-the-box configuration, since the Vertiv requires an additional card purchase to reach equivalent network visibility. The Vertiv's multiple serial interfaces and terminal block offer more wired out-of-band options for administrators who prefer direct serial access.
Which should you choose: the SRT3000RMXLA-NC or the GXT5-3KL620RT2UXL?
Our take: The SRT3000RMXLA-NC is the stronger choice when your installation runs 120 V circuits, needs built-in web/SNMP management without add-on cards, and requires more outlet density. At 120 V with an L5-30P input, it supports nine NEMA receptacles and delivers web-based management as a standard feature, versus the Vertiv's four 208 V receptacles and SNMP that requires the optional RDU101 card. The GXT5-3KL620RT2UXL, however, outputs the full 3,000 W at 208 V versus the APC's 2,700 W, carries ENERGY STAR 2.0, UL1778, and RoHS2 certifications in its spec sheet, and offers a documented 50 °C operating ceiling alongside a wider array of serial interfaces. Choose the Vertiv for 208 V rack environments where efficiency certification and thermal headroom are priorities; choose the APC for 120 V installations where outlet count and out-of-the-box network management matter most.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SRT3000RMXLA-NC | Vertiv GXT5-3KL620RT2UXL |
|---|---|---|
| UPS Topology | Double-conversion (Online) | On-line double conversion |
| Power Rating (VA) | 3,000 VA | 3,000 VA |
| Power Rating (W) | 2,700 W | 3,000 W |
| Input Voltage | 120 V | 208 VAC nominal |
| Input Plug | NEMA L5-30P | L6-20P |
| Output Voltage | 120 V | 208 VAC |
| Output Frequency | 50/60 Hz | — |
| Input Frequency Range | 40–70 Hz | — |
| AC Outlets | 9 (8x NEMA 5-20R + 1x NEMA L5-30R) | 4 (2x L6-15R + 2x L6-20R) |
| Output Waveform | Sine | — |
| Output Voltage THD | 2% | — |
| AVR | Yes | — |
| Surge Energy Rating | 340 J | — |
| Built-in Web Management | Yes | Optional (RDU101 card required) |
| Local Display | — | Full-color graphic LCD |
| Efficiency | — | Up to 98% (ECO) / 95% (online) |
| Operating Temperature | — | +32 to +122 °F (0 to 50 °C) |
| Dimensions (H×W×D) | — | 3.4 × 16.9 × 21.3 in |
| Weight | — | 65.1 lb |
| Certifications | — | ENERGY STAR 2.0, UL1778, c-UL, RoHS2, REACH |
| Form Factor | 2U Rackmount | 2U Rack/Tower |
| Auto-Restart | Yes | — |
Frequently Asked Questions
Which should you choose: the SRT3000RMXLA-NC or the GXT5-3KL620RT2UXL?
The SRT3000RMXLA-NC is the stronger choice when your installation runs 120 V circuits, needs built-in web/SNMP management without add-on cards, and requires more outlet density. At 120 V with an L5-30P input, it supports nine NEMA receptacles and delivers web-based management as a standard feature, versus the Vertiv's four 208 V receptacles and SNMP that requires the optional RDU101 card. The GXT5-3KL620RT2UXL, however, outputs the full 3,000 W at 208 V versus the APC's 2,700 W, carries ENERGY STAR 2.0, UL1778, and RoHS2 certifications in its spec sheet, and offers a documented 50 °C operating ceiling alongside a wider array of serial interfaces. Choose the Vertiv for 208 V rack environments where efficiency certification and thermal headroom are priorities; choose the APC for 120 V installations where outlet count and out-of-the-box network management matter most.
Can I use either of these UPS units on a standard 120 V office circuit?
Only the APC SRT3000RMXLA-NC is rated for 120 V input with a NEMA L5-30P plug. The Vertiv GXT5-3KL620RT2UXL operates at 208 VAC nominal with an L6-20P input and is not suitable for standard 120 V circuits without a step-up transformer, which is not part of its supplied specifications.
Do I need to buy anything extra to get SNMP monitoring on the Vertiv GXT5-3KL620RT2UXL?
Yes. Per the supplied specifications, SNMP and web management on the Vertiv GXT5-3KL620RT2UXL are enabled only with the optional Vertiv RDU101 communications card, which is not included. The APC SRT3000RMXLA-NC lists web-based management as a built-in feature with no optional card mentioned in the provided specs.
Which unit supports more connected devices or outlets for a dense server rack?
The APC SRT3000RMXLA-NC provides nine AC outlets (eight NEMA 5-20R plus one NEMA L5-30R), all at 120 V. The Vertiv GXT5-3KL620RT2UXL provides four outlets (two L6-15R and two L6-20R) at 208 V. The APC offers more receptacles, though the Vertiv's 208 V outlets can serve higher-draw dual-corded server PSUs directly.
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