APC by Schneider Electric SRT5KRMXLT-5KTF 5000VA 208V to 120V Online Rackmount UPS with Step-Down Transformer
Overview
The SRT5KRMXLT-5KTF is a 5000VA double-conversion online UPS built for data centers, server rooms, and high-density rack environments where clean, uninterruptible power is non-negotiable. Unlike line-interactive or standby designs, double-conversion topology means your connected equipment is running off inverter-produced power at all times — utility noise, sags, swells, and transients are completely isolated before they ever reach your gear. The integrated 208V-to-120V step-down transformer makes this the right call for facilities with 208V PDU circuits that need to feed standard 120V NEMA 5-20R equipment without a separate external transformer. If you're running a mixed rack with 208V feeds but 120V servers, switches, or NVRs, this single unit handles the conversion and the protection in a 5U rackmount chassis. For broader APC by Schneider Electric power protection options, the Smart-UPS SRT line covers a wide range of capacities and form factors.
Key Features
- Double-Conversion Online Topology: Power flows through the rectifier and inverter continuously — there is zero transfer time on outage. For network video recorders and servers mid-write, even a 4ms gap can corrupt a transaction or drop a recording. Double-conversion eliminates that risk entirely.
- 5000VA / Integrated Step-Down Transformer: The on-board 208V-to-120V transformer means you can provision standard NEMA 5-20R equipment off a 208V branch circuit without running a separate transformer. This is common in co-location and enterprise data closets where 120V outlets are scarce but 208V feeds are standard.
- 16 Protected Outlets (12 NEMA 5-20R + 2 L6-20R + 2 L6-30R): The outlet mix covers the full range of typical rack load — standard 1U servers on the 5-20R bank, higher-draw UPS-fed PDUs or lab equipment on the L6-20R and L6-30R positions. Sixteen protected positions from a single 5U unit is real outlet density for a mid-size rack.
- Included Web/SNMP Network Management Card: The bundled network card lets you monitor load, battery runtime, and input/output voltage from your NMS without buying an add-on. For NOC environments, this means immediate SNMP trap integration without a second procurement step. The 10/100 BaseT port connects directly to your management VLAN.
- LCD Graphics Display: Text and mimic diagrams show operating mode, active alarms, input/output voltage, load percentage, and battery capacity at a glance — useful during commissioning and for on-site technicians who don't have NMS access at the rack.
- Battery Failure Early Warning: The UPS runs continuous self-diagnostics on the lead-acid battery and flags degradation before a failure event. In 24/7 surveillance or server environments, the value is catching a weak battery during a maintenance window rather than discovering it at 2am during a power event.
- Green Mode (Patent-Pending): In stable utility power conditions, the UPS can bypass unused conversion stages to reduce heat and energy draw. This is particularly useful in always-on deployments where the UPS is rarely exercised — efficiency gains add up across months of runtime at idle load.
- 480J Surge Energy Rating: Provides a measurable buffer against transient voltage spikes. For power protection planning, 480J is an adequate front-line rating for typical AC line surges; higher-exposure sites (near industrial equipment, lightning-prone) should evaluate secondary SPD at the panel level in addition.
- Rack/Tower Convertible: Ships in rackmount configuration with the included rail kit and mounting hardware. If rack space becomes constrained, the chassis converts to tower orientation without additional hardware — protects your investment if the deployment environment changes.
- SmartSlot Expansion: Beyond the included network card, the SmartSlot accepts optional APC management and environmental monitoring modules, giving you a path to add temperature/humidity sensors or alternate connectivity without replacing the unit.
Integration & Compatibility
The SRT5KRMXLT-5KTF integrates with APC's PowerChute Network Shutdown software via the included Web/SNMP management card, enabling graceful OS shutdown of connected servers during extended outages. The 10/100 BaseT network interface supports SNMP-based integration with third-party NMS platforms. The SmartSlot interface accepts the full range of APC accessory cards for sites with more complex monitoring requirements. For facilities running PoE switches or security appliances off 120V feeds in a 208V environment, this unit eliminates the need for external step-down infrastructure. RoHS-compliant and mercury-free design supports environmental compliance documentation for enterprise procurement.
What's in the Box
- 1x SRT5KRMXLT-5KTF UPS unit
- 1x Web/SNMP Management Card
- 1x Rack mounting hardware kit
- 1x Rack mounting brackets
- 1x Rack mounting support rails
- 1x USB cable
- 1x Documentation CD
- 1x User Manual
- 1x Warranty card
Frequently Asked Questions
Q: Does the SRT5KRMXLT-5KTF include a network management card, or is that sold separately?
A: The Web/SNMP Management Card is included in the box. It connects via the 10/100 BaseT port and supports SNMP trap integration and PowerChute Network Shutdown without an additional purchase.
Q: What is the input voltage requirement for the SRT5KRMXLT-5KTF?
A: The SRT5KRMXLT-5KTF requires a 208V AC single-phase input. The integrated step-down transformer converts that to 120V output for the NEMA 5-20R outlets. The L6-20R and L6-30R outlets deliver 208V output directly.
Q: How much does the SRT5KRMXLT-5KTF weigh, and what rack space does it require?
A: The unit weighs approximately 218 lb (98.88 kg) and occupies 5U of rack space. Floor reinforcement or a properly rated rack with adequate weight capacity is required — verify your rack's weight rating before installation.
Q: What is the warranty on the SRT5KRMXLT-5KTF?
A: The UPS carries a 36-month manufacturer warranty. The internal battery carries a separate 24-month manufacturer warranty.
Q: Is the SRT5KRMXLT-5KTF a true online double-conversion UPS?
A: Yes. It operates in double-conversion online topology, meaning connected equipment runs off inverter-produced power continuously. There is no transfer time on utility failure — utility power is always isolated from your load.
Q: Can the SRT5KRMXLT-5KTF be used in a tower orientation instead of rackmount?
A: Yes. The chassis is rack/tower convertible. It ships with rack mounting hardware and rails for 5U rackmount installation, but it can be reconfigured for tower use if needed.
The detail that separates the SRT5KRMXLT-5KTF from a standard 5000VA online UPS is the factory-integrated 208V-to-120V step-down transformer. In enterprise deployments where branch circuits are almost universally 208V single-phase but the rack still needs to power 120V NEMA 5-20R devices — IP cameras, NVRs, 1U switches — you either run a separate external transformer or you spec this unit. At 218 lb in a 5U chassis, it is not a lightweight option, but the alternative is a separate transformer taking up additional rack real estate and adding another failure point to your power chain.
Technical Highlights:
- Double-Conversion Online Topology: Zero-transfer-time protection — the inverter is always online, so connected equipment never sees a utility transient or switchover gap. Critical for NVRs writing continuously to disk and servers running in-memory databases.
- 16 Protected Outlets (12x NEMA 5-20R, 2x L6-20R, 2x L6-30R): Enough outlet density to feed a full mixed rack without a secondary PDU on the 120V side. The L6-30R positions accommodate higher-draw equipment or downstream PDUs rated for 30A circuits.
- Included Web/SNMP Management Card + 10/100 BaseT: SNMP monitoring is live from day one — no add-on card procurement, no waiting on secondary delivery. Connects directly to the management VLAN for load trending, runtime estimates, and trap-based alerting to your NMS.
Deployment Considerations:
- At 217.99 lb, confirm your rack's weight capacity and floor loading before installation. Standard 4-post racks rated for 1,000–1,500 lb distributed loads handle it, but open-frame or two-post racks often do not. The included rail kit requires a 4-post rack.
- The 480J surge energy rating is adequate for typical AC line transients but is not a substitute for primary surge protection at the panel in lightning-prone or industrial environments. Layer accordingly.
This unit is the right fit for security operations centers, co-location rows, and enterprise data closets that standardized on 208V branch circuits but still need to power a mix of 120V and 208V rack equipment from a single, managed power protection point. The SRT5KRMXLT-5KTF (often searched as SRT5KRMXLT 5KTF) removes the step-down transformer as a separate line item and gives you full SNMP visibility out of the box.
