APC by Schneider Electric SURT15KRMXLT Smart-UPS RT 15KVA Rack-Mount UPS
Overview
The SURT15KRMXLT is APC's Smart-UPS RT rated at 15KVA for 208V environments — a rack-mount power protection unit sized for network closets, server rooms, and edge data center deployments where a sudden outage cannot be absorbed by the connected load. At 15KVA, this unit sits in the range where most mid-size enterprise server deployments and multi-switch network racks start to require dedicated, high-capacity UPS infrastructure rather than a cluster of smaller units. Rack-mounting keeps the footprint consolidated in a standard 19-inch bay, and the 20.98 x 17 x 30.43-inch chassis reflects the depth typical of a high-capacity runtime-extended tower-converted-rack form factor — confirm rack depth before ordering, as shallow two-post racks may not accommodate it without additional support rails.
Key Features
- 15KVA Capacity at 208V: Sized for demanding server and network loads — at 208V input, you recover usable wattage compared to 120V deployments, reducing branch circuit count and simplifying distribution in larger comms rooms.
- Rack-Mount Form Factor (19-inch): Integrates into standard equipment racks without requiring a separate UPS pedestal or floor space allocation — important in high-density rack environments where every square foot carries a cost.
- Maintenance-Free Sealed Lead-Acid Battery with Suspended Electrolyte: The leakproof, sealed construction means no acid spill risk during transport or installation, and no topping-off maintenance — relevant when the unit is deployed in a locked, unattended comms room with periodic-only access.
- Network and Server Load Classification: Factory-configured for the harmonic and switching characteristics of IT equipment loads, not industrial motors or lighting — means the output waveform and transfer behavior are matched to what servers and active network gear actually need.
- Physical Dimensions (20.98 x 17 x 30.43 in.): The 30-inch depth is the critical number here — measure your rack's usable interior depth and confirm rail-to-rail clearance before deployment. Units of this capacity typically require four-post rack mounting with proper weight-rated slides.
Integration and Compatibility
The SURT15KRMXLT is designed for power protection in structured IT environments. As part of the broader APC by Schneider Electric Smart-UPS RT line, it is engineered to accept optional external battery modules for extended runtime — a common requirement in network and server room deployments where ride-through time beyond a standard battery pack is needed. Integration with power management software via APC's network management card (sold separately) enables graceful OS shutdown, runtime monitoring, and remote alerting — consult the current APC compatibility matrix for supported NMC options on this chassis. For complete rack infrastructure planning, verify total rack load against your PDU and branch circuit capacity before commissioning.
Frequently Asked Questions
Q: What is the input voltage for the SURT15KRMXLT?
A: The SURT15KRMXLT is rated for 208V input, consistent with the product designation. Confirm your facility's branch circuit voltage before installation.
Q: Does the SURT15KRMXLT support external battery modules for extended runtime?
A: The Smart-UPS RT platform is designed to support APC external battery packs for runtime extension. Consult APC's current compatibility documentation for approved external battery module pairings with this specific model.
Q: What rack depth is required to install the SURT15KRMXLT?
A: The unit measures 30.43 inches deep. Four-post rack mounting is strongly recommended at this capacity and weight. Verify your rack's interior usable depth and weight rating before installation.
Q: What type of battery does the SURT15KRMXLT use?
A: It uses a maintenance-free sealed lead-acid battery with suspended electrolyte — leakproof construction that requires no fluid maintenance and is safe for installation in enclosed equipment rooms.
Q: Is the SURT15KRMXLT suitable for both network and server applications?
A: Yes. The unit is classified for Network and Server load types, meaning its output characteristics are matched to IT equipment rather than industrial or resistive loads.
The SURT15KRMXLT sits at the top end of what most mid-enterprise IT rooms deploy as a single UPS unit — 15KVA at 208V is enough capacity to cover a fully populated 42U rack of 1U servers or a dense network core stack, and the rack-mount form factor means you're not giving up floor space to a separate tower. The sealed lead-acid battery with suspended electrolyte is the detail I'd flag first to facilities teams: no spill risk means simpler compliance for battery storage in occupied buildings.
Technical Highlights:
- 15KVA / 208V Rating: At 208V, usable watt capacity is higher than the equivalent 120V unit of the same VA rating — fewer branch circuits needed to support a full server room deployment.
- Sealed Suspended-Electrolyte Battery: Leakproof by construction, not just by cap design — suitable for installation in enclosed, unattended equipment rooms without acid containment trays.
- Rack-Mount Chassis (20.98 x 17 x 30.43 in.): The 30.43-inch depth is the install-planning number — confirm four-post rail compatibility and rack interior depth before scheduling delivery.
Deployment Considerations:
- Four-post rack mounting is required at this capacity class — two-post racks typically lack the depth and weight rating for a unit of this size; plan rack infrastructure accordingly before the unit arrives on-site.
- Runtime at full 15KVA load on the internal battery alone will be limited — if your SLA requires more than a few minutes of ride-through, budget for APC-compatible external battery modules at time of purchase, not after the first outage.
The SURT15KRMXLT is the right fit for a purpose-built network or server room where 208V distribution is already in place, rack depth is not constrained, and the primary requirement is clean, high-capacity power protection for IT loads — not a unit to press into service as a general-purpose facility UPS.
