APC by Schneider Electric SRT3000RMXLW-IEC 3000VA 2U Rackmount Online UPS
Overview
The SRT3000RMXLW-IEC is APC's Smart-UPS On-Line unit delivering 3000VA (2700W) of double-conversion power protection in a 2U rackmount chassis. Double-conversion online topology means the connected load runs entirely off the inverter at all times — utility power fluctuations, brownouts, and sags never reach your equipment because the conversion to battery-backed DC and back to clean AC happens continuously, not just on transfer. That's the fundamental difference from line-interactive designs and the reason this class of UPS is specified for servers, NVRs, VoIP gateways, and network infrastructure where even a brief voltage transient can cause a reboot or data loss.
Configured for 208V or 230V output with eight IEC receptacles — six C13 and two C19 — the rackmount UPS covers mixed loads: C13 handles most 1U servers, switches, and access control panels; the two C19 outlets accommodate higher-draw devices such as PDUs or rack-mounted storage. The 8-foot input cord gives you practical cable management flexibility in a dense rack. At 17 inches deep and 2U tall, it fits standard 4-post racks without consuming excessive vertical real estate. Explore the full APC by Schneider Electric power protection lineup for complementary rack PDUs and extended battery modules.
Key Features
- 3000VA / 2700W Double-Conversion Online: Continuous inverter operation eliminates transfer time entirely — zero-millisecond switchover means no load disturbance, critical for NVR systems and servers that don't tolerate even brief power interruptions.
- 208V and 230V Output: Dual-voltage output flexibility lets you support both North American 208V three-phase-derived circuits and international 230V single-phase loads from a single unit — useful in data centers and enterprise environments with mixed infrastructure.
- 6×C13 + 2×C19 IEC Outlet Layout: Eight protected outlets in a purpose-matched split — six C13 for standard rack devices (1RU servers, managed switches, IP cameras, access control appliances) and two C19 for higher-current equipment — reducing the need for a separate PDU on smaller rack builds.
- 2U Rackmount Form Factor: At 2U, this unit protects up to 2700W of connected load while consuming a minimal rack footprint. Pair with rack PDUs or extended battery modules when your runtime or outlet count requirements grow.
- Lead-Acid Battery: Sealed valve-regulated lead-acid (VRLA) chemistry is field-proven in UPS applications for reliability and predictable end-of-life behavior — batteries can be replaced without taking the load offline on hot-swap-capable configurations in this series.
- 8-Foot Input Cord: A longer-than-standard 8-foot cord reaches floor-level PDUs or in-row power strips without requiring an extension — an often-overlooked detail that matters in tightly cabled rack environments.
Integration and Compatibility
The SRT3000RMXLW-IEC is designed for environments running rack-mounted infrastructure. The IEC outlet configuration is compatible with standard IEC C14 and C20 power cords used across server, networking, and storage equipment from major vendors. The unit belongs to APC's Smart-UPS On-Line SRT family, which supports network management cards (sold separately) for SNMP monitoring, remote shutdown integration, and compatibility with data center infrastructure management (DCIM) platforms. Verify NMC card compatibility against the SRT slot specification before ordering management accessories.
Frequently Asked Questions
Q: What is the load capacity of the SRT3000RMXLW-IEC in watts?
A: The unit is rated at 3000VA with a 2700W real power capacity, reflecting a 0.9 power factor. Size your connected load at or below 2700W for full runtime headroom.
Q: What outlet types does the SRT3000RMXLW-IEC provide?
A: Eight IEC outlets: six C13 (standard rack device receptacles) and two C19 (higher-current receptacles for PDUs or storage). All outlets are on battery-backed protected circuits.
Q: Is the SRT3000RMXLW-IEC a true online (double-conversion) UPS?
A: Yes. The Smart-UPS On-Line designation indicates double-conversion topology — the load runs off the inverter continuously, with zero transfer time to battery during a utility outage or disturbance.
Q: Does the SRT3000RMXLW-IEC support network management?
A: The SRT series supports APC network management cards installed in the UPS management slot, enabling SNMP monitoring and graceful shutdown integration. Network management cards are sold separately — confirm card model compatibility with APC before ordering.
Q: What rack space does the SRT3000RMXLW-IEC require?
A: The unit occupies 2U of rack space and is 17 inches deep, fitting standard 4-post equipment racks. Verify rack depth against your cabinet's usable depth before installation.
The SRT3000RMXLW-IEC hits the sweet spot for mid-density rack protection — 3000VA double-conversion in 2U, with a dual-voltage 208V/230V output that makes it genuinely useful in enterprise data closets where circuit voltage isn't always standardized. I spec this unit in deployments where the NVR stack or access control server room can't tolerate even a millisecond gap on a transfer event.
Technical Highlights:
- Double-Conversion Topology: Zero transfer time to battery means connected loads — NVRs, managed switches, access control servers — never see a dropout. Line-interactive alternatives switch in 2–10ms; on sensitive storage controllers, that's enough to corrupt a write buffer.
- 6×C13 + 2×C19 at 208V/230V: The outlet split handles a full 2U rack slice — six standard rack devices on C13 plus two C19 slots for a high-draw device or PDU tap, all at the voltage range modern rack equipment expects.
- 2U / 17-Inch Depth: Fits a standard 4-post rack with room to spare. At 17 inches, it won't fight for depth in shallow 24-inch cabinets — though measure your specific cabinet before assuming clearance.
Deployment Considerations:
- The SRT series management slot requires a separately purchased NMC card for SNMP/network shutdown — budget for it if you need remote monitoring or integration with a DCIM platform. It is not included.
- Output is 208V or 230V, not 120V — verify every connected device's input voltage range before wiring. North American 120V-only equipment will not operate safely on this unit.
Best fit: enterprise security head-end rooms, mid-density server closets, and NVR rack builds where IEC outlet density, dual-voltage output, and true online conversion are non-negotiable — and where a 2U footprint matters.
