APC by Schneider Electric SUA5000RMT5U vs APC by Schneider Electric SRT5KRMXLT-IEC: Specification Comparison
Both the APC Smart-UPS SUA5000RMT5U and the APC Smart-UPS SRT SRT5KRMXLT-IEC are 5000VA rackmount uninterruptible power supplies from APC by Schneider Electric, targeting data center and server room installations requiring protected 208V power. The core distinction lies in UPS topology: the SUA5000RMT5U is a line-interactive unit, while the SRT5KRMXLT-IEC is a double-conversion (online) unit. Both share the same apparent kVA rating, making them a legitimate cross-shop for buyers evaluating protection level against cost and complexity.
In This Guide
- How does each unit's topology affect power quality and protection level?
- Which unit offers more runtime flexibility and handles a wider input voltage range?
- How do the two units differ in manageability, physical installation, and operating environment?
- Which should you choose: the SUA5000RMT5U or the SRT5KRMXLT-IEC?
- Side-by-Side Specs
- FAQ
How does each unit's topology affect power quality and protection level?
The SRT5KRMXLT-IEC uses double-conversion (online) topology, meaning all connected load power continuously flows through the inverter. This delivers galvanic isolation from the utility feed, a specified output voltage THD of 2%, a sine waveform output, and a crest factor of 3:1 — all verifiable from its spec sheet. The result is near-zero transfer time during utility failure because the inverter is always active.
The SUA5000RMT5U is line-interactive, which means it passes utility power through to the load under normal conditions and switches to battery only on failure or out-of-tolerance voltage. Its topology spec is not stated in the provided data, and no THD or crest factor figures are given. Line-interactive designs typically carry a non-zero transfer time (usually 2–8 ms), though this number is absent from the provided specs.
For sensitive electronic loads — blade servers, storage arrays, medical-adjacent equipment — the double-conversion architecture of the SRT5KRMXLT-IEC provides a measurably cleaner and continuously regulated power path. The SUA5000RMT5U's topology is appropriate for general IT loads where occasional brief transfer windows are acceptable.
Which unit offers more runtime flexibility and handles a wider input voltage range?
The SUA5000RMT5U provides documented backup times of 9.4 minutes at full load and 26.7 minutes at half load, with a battery recharge time of 3 hours and hot-swap battery support confirmed. These are concrete, planning-relevant figures. Battery technology is specified as Sealed Lead Acid (VRLA). No equivalent runtime, recharge time, or hot-swap figures appear in the SRT5KRMXLT-IEC's provided specs.
On input range, the SRT5KRMXLT-IEC specifies a minimum input of 100V and a maximum of 275V, with an input frequency window of 40–70 Hz — a notably wider band than the SUA5000RMT5U's stated 50/60 Hz input frequency (no input voltage min/max provided). This broader input acceptance makes the SRT5KRMXLT-IEC more tolerant of dirty or variable utility feeds, which is inherent to double-conversion design.
The SUA5000RMT5U's explicit runtime and recharge data give capacity planners concrete numbers for duty-cycle and generator-handoff calculations. The SRT5KRMXLT-IEC's runtime characteristics under load are not provided in the supplied specs and cannot be inferred.
How do the two units differ in manageability, physical installation, and operating environment?
The SRT5KRMXLT-IEC specifies web-based management and auto-restart capabilities, enabling remote monitoring and unattended recovery after utility restoration. AC outlet types are explicitly listed: C13 coupler, C19 coupler, and IEC Jumpers. Surge protection is confirmed at 480 J, and surge energy rating is provided. None of these management or outlet specs appear in the SUA5000RMT5U's provided data set.
The SUA5000RMT5U provides a broader set of environmental specifications: operating temperature 0–40°C, storage temperature -15–45°C, operating altitude 0–3,000 m, and non-operating altitude 0–15,000 m. It also specifies a power cable length of 2.44 m, an audible alarm, LED indicators, Emergency Power Off (EPO) capability, and a black chassis color. The SRT5KRMXLT-IEC does not include equivalent environmental or physical installation specs in the provided data.
EPO support on the SUA5000RMT5U is a meaningful differentiator for data center deployments subject to NEC or local code requirements for emergency shutdown. The SRT5KRMXLT-IEC's EPO support is not confirmed in the provided specs.
Which should you choose: the SUA5000RMT5U or the SRT5KRMXLT-IEC?
Our take: The SRT5KRMXLT-IEC is the stronger choice when continuous power conditioning, wide input-voltage tolerance, and remote manageability are the primary requirements. Its double-conversion topology delivers 2% output THD and a 3:1 crest factor — specs the SUA5000RMT5U does not provide — along with a 100–275V input range versus the SUA5000RMT5U's unspecified input voltage window, and built-in web-based management absent from the SUA5000RMT5U's confirmed spec set. Conversely, the SUA5000RMT5U is the stronger choice when runtime planning, Emergency Power Off compliance, and documented environmental ratings are required: it provides concrete 9.4-minute full-load and 26.7-minute half-load runtimes, confirmed EPO support, hot-swap batteries, and a verified 0–3,000 m operating altitude — none of which appear in the SRT5KRMXLT-IEC's provided specs. Buyers outfitting NEC-compliant data halls or needing generator-handoff runtime data should favor the SUA5000RMT5U; those prioritizing power quality and remote management should favor the SRT5KRMXLT-IEC.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SUA5000RMT5U | APC by Schneider Electric SRT5KRMXLT-IEC |
|---|---|---|
| UPS Topology | Line-interactive (not stated in specs) | Double-conversion (Online) |
| Output Power Capacity | 5 kVA | 5 kVA |
| Output Power (Watts) | 4000 W | 4250 W |
| Input Frequency | 50/60 Hz | 40/70 Hz |
| Input Voltage Range | — | 100–275 V |
| Output Voltage | 208 V | 208 V |
| Output Voltage THD | — | 2% |
| Crest Factor | — | 3:1 |
| Waveform | — | Sine |
| Surge Energy Rating | — | 480 J |
| Typical Runtime at Full Load | 9.4 min | — |
| Typical Runtime at Half Load | 26.7 min | — |
| Battery Recharge Time | 3 h | — |
| Hot-Swap Battery | Yes | — |
| Emergency Power Off (EPO) | Yes | — |
| Web-Based Management | — | Yes |
| Auto-Restart | — | Yes |
| Noise Level | 53 dB | 55 dB |
| Operating Temperature | 0–40 °C | — |
| Operating Altitude | 0–3000 m | — |
| Audible Alarm | Yes | Yes |
| Battery Technology | Sealed Lead Acid (VRLA) | — |
| AC Outlet Types | — | C13, C19, IEC Jumpers |
Frequently Asked Questions
Which should you choose: the SUA5000RMT5U or the SRT5KRMXLT-IEC?
The SRT5KRMXLT-IEC is the stronger choice when continuous power conditioning, wide input-voltage tolerance, and remote manageability are the primary requirements. Its double-conversion topology delivers 2% output THD and a 3:1 crest factor — specs the SUA5000RMT5U does not provide — along with a 100–275V input range versus the SUA5000RMT5U's unspecified input voltage window, and built-in web-based management absent from the SUA5000RMT5U's confirmed spec set. Conversely, the SUA5000RMT5U is the stronger choice when runtime planning, Emergency Power Off compliance, and documented environmental ratings are required: it provides concrete 9.4-minute full-load and 26.7-minute half-load runtimes, confirmed EPO support, hot-swap batteries, and a verified 0–3,000 m operating altitude — none of which appear in the SRT5KRMXLT-IEC's provided specs. Buyers outfitting NEC-compliant data halls or needing generator-handoff runtime data should favor the SUA5000RMT5U; those prioritizing power quality and remote management should favor the SRT5KRMXLT-IEC.
Which UPS — the SUA5000RMT5U or the SRT5KRMXLT-IEC — is better for protecting sensitive servers from dirty utility power?
Based on the provided specs, the SRT5KRMXLT-IEC is the more appropriate choice. Its double-conversion (online) topology continuously regenerates output power through the inverter, yielding a specified 2% output THD and a 3:1 crest factor. The SUA5000RMT5U is line-interactive, and no THD or crest factor figures are provided for it in the supplied specifications.
Does the SUA5000RMT5U or the SRT5KRMXLT-IEC tell me how long it will run on battery?
Only the SUA5000RMT5U provides runtime figures in the supplied specifications: 9.4 minutes at full load and 26.7 minutes at half load, with a 3-hour recharge time. No runtime or recharge data is included in the SRT5KRMXLT-IEC's provided spec set, so backup duration for that model cannot be determined from the available information.
Can either unit be managed remotely, and which supports Emergency Power Off (EPO)?
The SRT5KRMXLT-IEC specifies web-based management and auto-restart in its provided specs; the SUA5000RMT5U does not list either. Conversely, the SUA5000RMT5U confirms Emergency Power Off (EPO) support; EPO is not mentioned in the SRT5KRMXLT-IEC's provided specifications. Buyers with both requirements should verify each missing capability directly with APC before purchasing.
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