APC by Schneider Electric SRT10KXLT30 10 KVA / 10 KW Double-Conversion Online UPS
Overview
The APC SRT10KXLT30 is a 10 KVA / 10,000 W double-conversion online UPS designed for data centers, server rooms, and critical infrastructure environments where continuous, clean power is non-negotiable. Unlike standby or line-interactive designs, the double-conversion (online) topology means connected equipment is always running from inverter-produced power — the AC input is continuously rectified and re-inverted, so there is zero transfer time to battery when utility power fails or degrades. For a security or IT deployment running network video recorders, storage arrays, or managed switches around the clock, that zero-millisecond switchover is the spec that matters most.
The SRT10KXLT30 accepts an unusually wide input voltage range — 100 V to 275 V — and handles input frequencies from 40 Hz to 70 Hz. That tolerance means this unit can operate correctly in facilities with unstable utility feeds or across regions with differing grid standards, without switching to battery unnecessarily and without shortening battery life through excessive cycling. Automatic Voltage Regulation (AVR) continuously corrects sags and swells within that range before they reach your load.
Key Features
- Double-Conversion (Online) Topology: Connected loads run from inverter power at all times — there is no transfer time to battery during a utility failure. For equipment like PoE network switches or storage servers that are sensitive to even a 20 ms interruption, this is the architecture that eliminates the risk entirely.
- 10 KVA / 10,000 W Output Capacity: At a unity power factor (10 kW = 10 kVA), this unit doesn't derate when driving modern server PSUs with near-unity PF loads. Size your connected load below 10,000 W to leave headroom for inrush on startup.
- 94.5% Efficiency: At full load, only 5.5% of input power is lost as heat. For a unit running continuously at 8–10 kW, that efficiency figure directly reduces cooling load in your equipment room and lowers operating costs over a multi-year deployment lifecycle.
- Wide Input Range — 100 V to 275 V, 40–70 Hz: This tolerance absorbs most utility voltage events (sags, swells, brownouts) via AVR without touching the battery. Batteries last longer when they cycle less — this range is wide enough to handle most North American and international grid conditions without unnecessary battery discharge.
- True Sine Wave Output: Output waveform is a clean sine wave, not a stepped approximation. Active PFC server power supplies and variable-speed drives require sine wave input; square wave or modified sine wave UPS units can cause premature PSU failure in enterprise hardware. The SRT10KXLT30 is safe for any load topology.
- Output Voltage Stability — 2% THD: Total Harmonic Distortion on the output is held to 2%, meaning voltage delivered to connected equipment is exceptionally clean. Sensitive analog or measurement systems co-located in the rack benefit from this low distortion floor.
- Automatic Voltage Regulation (AVR): Voltage corrections happen without a battery transfer — the unit regulates output continuously through the inverter. This is not a relay-switched AVR like you find in line-interactive units; in a double-conversion design, AVR is inherent to the architecture.
- Emergency Power Off (EPO): The SRT10KXLT30 includes an EPO input, enabling integration with facility-level emergency shutdown systems. In a data center or server room subject to NFPA 75 / NFPA 76 requirements, EPO connectivity is often a mandatory installation item — confirm with your facilities team before commissioning.
- 480 J Surge Energy Rating: Surge protection at the UPS input absorbs transient energy events before they reach the rectifier or the connected load. At 480 joules, this is adequate for typical utility switching transients; direct lightning strike protection requires additional upstream SPDs.
- 55 dB Noise Level: At 55 dB(A), this unit will be audible in a quiet office environment. Plan for a dedicated UPS closet, server room, or equipment cage — not an open office installation. In a purpose-built equipment room with normal HVAC noise, 55 dB is unremarkable.
- 3:1 Crest Factor Tolerance: A 3:1 crest factor rating means the inverter can supply peak currents up to three times the RMS current rating without clipping — important when loads include switching power supplies that draw current in narrow pulses rather than smoothly across the cycle.
Integration and Compatibility
The SRT10KXLT30 outputs 208 V (with a range up to 240 V), which aligns with standard dual-voltage server PSUs, 208 V PDUs, and commercial power distribution equipment. Input is also 208 V nominal, making this a direct-replacement or new-installation fit for most North American data center and wiring closet environments running 208 V single-phase or derived from 208/120 V three-phase distribution. The unit's EPO port integrates with building management and fire suppression systems. Verify outlet/receptacle configuration and interface port type (the product name references a contact interface port) against your existing PDU and monitoring infrastructure before ordering — the SRT10KXLT30 is positioned in APC's Smart-UPS On-Line SRT series, which supports APC's Network Management Card ecosystem for SNMP-based remote monitoring.
For large IP camera deployments or enterprise security infrastructure — where you may have dozens of PoE switches, NVRs, and access control servers on a single UPS — a 10 KVA double-conversion unit at this power factor provides genuine protection against the full range of power anomalies: outages, sags, swells, surges, frequency deviations, and waveform distortion.
Frequently Asked Questions
Q: What is the difference between the SRT10KXLT30 and a standard line-interactive UPS at this power level?
A: The SRT10KXLT30 uses double-conversion (online) topology, meaning connected loads run from inverter-produced power continuously — transfer time to battery is zero milliseconds. A line-interactive UPS transfers to battery in 2–10 ms when utility fails, which is acceptable for most IT equipment but can cause issues with sensitive or tightly-timed systems. The double-conversion design also provides superior output voltage regulation (2% THD) and true sine wave output regardless of input quality.
Q: What input voltage range does the SRT10KXLT30 accept?
A: The SRT10KXLT30 accepts input voltages from 100 V to 275 V at frequencies of 40–70 Hz. Automatic Voltage Regulation handles sags and swells within this range without switching to battery, extending battery service life in facilities with variable utility quality.
Q: Is the SRT10KXLT30 suitable for powering active PFC server power supplies?
A: Yes. The SRT10KXLT30 outputs a true sine wave, which is required by active PFC (power factor corrected) server and workstation power supplies. Modified sine wave or stepped-approximation UPS units can cause overheating or premature failure in active PFC PSUs — the SRT10KXLT30 does not have this limitation.
Q: Does the SRT10KXLT30 include an Emergency Power Off (EPO) capability?
A: Yes. The SRT10KXLT30 includes an EPO input for integration with facility-level emergency shutdown systems, fire suppression system interlocks, and building management systems. This is often required by NFPA 75/76 in data center environments.
Q: What is the efficiency rating of the SRT10KXLT30?
A: The SRT10KXLT30 is rated at 94.5% efficiency at full load. In a double-conversion UPS, efficiency directly affects heat dissipation and ongoing energy cost — at 10 kW output, approximately 550 W is lost as heat, which must be accounted for in your room cooling calculations.
Q: What output voltage does the SRT10KXLT30 deliver?
A: The SRT10KXLT30 outputs 208 V to 240 V at 50 or 60 Hz. The nominal output is 208 V, making it compatible with standard 208 V data center PDUs, dual-voltage server power supplies, and commercial electrical infrastructure common in North American facilities.
The SRT10KXLT30's 94.5% full-load efficiency is the number I always point to first when a customer is comparing double-conversion units at this power level — at 10 kW continuous, that 5.5% loss is roughly 550 W of heat you need to extract from the room. In a dense equipment space, that's not a footnote; it's a line item in your cooling budget. The double-conversion topology means your connected loads never touch raw utility power — they run from the inverter continuously, so the zero-millisecond transfer time is structural, not a marketing claim.
Technical Highlights:
- Input Range (100–275 V, 40–70 Hz): Wide enough to absorb most North American and international grid anomalies through AVR without a battery transfer — batteries cycle less, last longer, and replacement intervals extend accordingly.
- 2% Output THD: Clean enough for analog measurement equipment, sensitive audio systems, or any load that reacts to harmonic distortion. Most enterprise server PSUs won't notice, but if you're co-locating instrumentation or precision timing hardware, this spec matters.
- 3:1 Crest Factor: Switching power supplies draw current in sharp pulses — a 3:1 crest factor means the inverter can handle peak currents three times the RMS rating without output voltage clipping, which is what you need when your load bank is 100% server PSUs.
Deployment Considerations:
- EPO integration requires coordination with your facility's fire suppression or BMS contractor before commissioning — confirm wiring interface type and dry-contact logic polarity against your building system's specifications.
- At 55 dB(A), this unit is audible in quiet spaces; plan for a dedicated equipment room or enclosed rack enclosure — open-office or under-desk installations are not appropriate at this power class.
The SRT10KXLT30 is the right fit for a mid-density server room or security operations center running 208 V distribution — specifically where you have a mix of active PFC server PSUs, managed PoE switches, and NVR storage that cannot tolerate even a brief power interruption or waveform distortion event.
