APC by Schneider Electric SRT5KRMXLIM 5kVA Rackmount Online UPS 230V Marine
Overview
The APC by Schneider Electric SRT5KRMXLIM is a 5kVA/4500W double-conversion online UPS in a rackmount form factor, rated for 230V marine and international deployments. Unlike standby or line-interactive topologies that only switch to battery during an outage, the SRT5KRMXLIM runs loads exclusively off its inverter at all times — meaning utility power never reaches your connected equipment directly. That zero-transfer-time architecture is what separates true online UPS systems from everything else, and it matters for sensitive network infrastructure, security servers, and surveillance NVR stacks where even a 4ms transfer gap can cause a reload or data corruption event.
Explore the full UPS and power protection catalog for rackmount, tower, and modular options across multiple power capacities.
Key Features
- Double-Conversion (Online) Topology: Every watt your load draws passes through the UPS inverter continuously — no transfer switching, no gap. For network video recorders, access control servers, and VoIP infrastructure that cannot tolerate even millisecond power interruptions, this is the only topology that qualifies.
- 5kVA / 4500W Output Capacity: 4,500W of real power supports a meaningful equipment stack — a high-density PoE switch, multiple NVRs, and edge compute simultaneously. Check your actual load with a power meter before sizing; UPS longevity degrades at sustained loads above 80% (roughly 3,600W here).
- Pure Sine Wave Output: The inverter produces a true sine wave, not a stepped approximation. Active PFC power supplies found in modern servers, workstations, and managed switches require pure sine to operate cleanly — a modified sine wave UPS will cause some of these loads to run hot, fault, or refuse to start.
- Wide Input Voltage Window (160–275V): Accepting input from 160V to 275V before switching to battery means the SRT5KRMXLIM rides through voltage sags and surges that would send a narrower-window UPS to battery unnecessarily. In marine environments and facilities with generator-driven power, wide input tolerance directly extends battery life by reducing unnecessary discharge cycles.
- Emergency Power Off (EPO): EPO support allows a remote hard-cutoff of UPS output — a code requirement in many data center, server room, and marine electrical installations. Wire the EPO port to a wall-mounted emergency switch to comply with NFPA 75/76 or equivalent facility safety standards.
- 480J Surge Energy Rating: 480 joules of surge absorption handles transient spikes that slip through facility-level protection. This is the last line of defense for connected equipment against switching transients and nearby lightning coupling.
- Output THD ≤3%: Total harmonic distortion under 3% means the power delivered to your loads is clean enough for precision equipment and active PFC supplies. Dirty power — even at nominal voltage — causes premature component failure in power-sensitive electronics.
- 45–65 Hz Input Frequency Acceptance: The wide frequency window makes this unit compatible with both 50Hz (European/international) and 60Hz (North American) utility sources, as well as generator outputs that may drift from nominal frequency under load. Essential for shipboard deployments where generator frequency is not always tightly regulated.
- Temperature Voltage Compensation: Battery chemistry degrades faster at elevated temperatures. The SRT5KRMXLIM adjusts charge voltage based on ambient temperature — extending battery service life in equipment rooms that run warm, such as shipboard spaces without dedicated HVAC.
- 55 dB Noise Level: At 55 dB, this unit is audible in a quiet server room but not disruptive in a properly ventilated rack enclosure or noisy plant environment. Plan placement accordingly if it will be installed in an office-adjacent space.
- 3:1 Crest Factor Tolerance: A 3:1 crest factor rating means the SRT5KRMXLIM handles loads with high peak-to-RMS current ratios — common in switch-mode power supplies — without output voltage distortion or inverter stress. Under-rated crest factor tolerance is a common failure point when deploying lesser UPS units with dense server loads.
Integration & Compatibility
The rackmount chassis integrates into standard 19-inch server rack enclosures. The 230V output (220–230V range) targets international and marine deployments running IEC-standard equipment. EPO wiring follows industry-standard dry-contact input — consult your facility electrician for compliance with local electrical codes. For deployments requiring network-based monitoring and shutdown, verify compatibility with APC's network management card options for the Smart-UPS SRT family before ordering; management card bay availability is not confirmed in the current evidence but is standard across the SRT platform.
For power planning across multi-rack surveillance infrastructure, review the UPS sizing and runtime guide to match load, runtime, and battery expansion requirements before specifying this unit.
Frequently Asked Questions
Q: What is the difference between the SRT5KRMXLIM and a standard line-interactive UPS?
A: The SRT5KRMXLIM uses double-conversion (online) topology, meaning your connected equipment always runs off the inverter — utility power never passes through directly. Line-interactive UPS systems only engage the inverter when a fault is detected, introducing a brief transfer gap. The SRT5KRMXLIM has zero transfer time, which matters for servers, NVRs, and network equipment sensitive to even momentary power interruptions.
Q: What input voltage range does the SRT5KRMXLIM support?
A: The SRT5KRMXLIM accepts input voltage between 160V and 275V before switching to battery. This wide window makes it suitable for installations with unstable grid power, generator-sourced power, or shipboard electrical systems where voltage may fluctuate significantly.
Q: Does the SRT5KRMXLIM produce a pure sine wave output?
A: Yes. The output waveform is pure sine wave, which is required by active PFC power supplies found in modern servers, managed switches, and precision equipment. Modified sine wave or stepped approximation outputs can cause these devices to fault, run hot, or fail to start.
Q: What is EPO and does the SRT5KRMXLIM support it?
A: Emergency Power Off (EPO) allows a hardwired remote switch to immediately cut all UPS output power in an emergency. The SRT5KRMXLIM includes EPO support, which is often required by fire codes and data center standards such as NFPA 75/76 for equipment rooms and by marine electrical regulations for shipboard installations.
Q: Is the SRT5KRMXLIM suitable for marine deployments?
A: The
