APC by Schneider Electric SMT3000RMUS 3000VA 2U Rackmount Line-Interactive UPS
Overview
The SMT3000RMUS is a 2880VA / 2700W line-interactive UPS in a 2U rackmount form factor, designed for server rooms, network closets, and surveillance infrastructure where a hard power failure or a dirty utility feed can take down critical systems. It delivers pure sine wave output — not simulated or stepped approximation — which matters when your load includes switching power supplies, variable-speed drives, or active PFC power supplies found in modern servers and NVRs. At 98% efficiency in normal operation, it runs cool and keeps your data center energy budget in check. For integrators deploying rack-mount UPS systems in commercial environments, this unit covers the high-end of 120V single-phase capacity without stepping up to three-phase infrastructure.
The unit accepts input from a NEMA L5-30P plug, meaning it's wired to a 30A twist-lock circuit — the standard for mid-density rack power in colocation and on-premise server rooms. If your rack doesn't already have a 30A circuit, plan that infrastructure before ordering.
Key Features
- Pure Sine Wave Output at 2700W: True sine wave under battery is non-negotiable for active PFC server power supplies, modern NVR platforms, and VoIP gateways. Simulated sine wave UPS units cause these loads to alarm, throttle, or shut down — the SMT3000RMUS eliminates that failure mode entirely. At 2700W / 2880VA, it can carry a fully-loaded 2U rack shelf without load-shedding.
- Line-Interactive Topology with ±Wide Input Range (75–154V): The automatic voltage regulation (AVR) stage corrects sags down to 75V and swells up to 154V without switching to battery. That's a wider tolerance window than most 120V UPS units, which typically switch at 85–140V. In environments with marginal utility power — older commercial buildings, remote sites, warehouse electrical — this keeps runtime hours on the battery bank from burning down unnecessarily.
- 98% Efficiency: Running 24/7/365, a single percentage point of efficiency difference translates to real dollars on your utility bill. At 98%, the SMT3000RMUS generates minimal heat, reducing HVAC load in enclosed rack environments.
- 8 AC Outlets (NEMA 5–15R and 5–20R mix): Eight receptacles accommodate both standard 15A and 20A equipment. For a surveillance NVR rack, you can power the recorder, managed PoE switches, a network gateway, and a monitor from a single UPS without adapters. Verify your connected loads don't collectively exceed 2700W — the outlet count is generous but the watt budget is shared.
- 459J Surge Energy Rating: Transient voltage spikes are absorbed before they reach connected equipment. For surveillance and networking gear with sensitive ASICs, this is the first line of defense against brown-out recovery surges.
- Sealed Lead Acid (VRLA) Battery — No Maintenance Spill Risk: VRLA chemistry means no free electrolyte, making the unit safe for installation in equipment rooms alongside servers and network gear without special ventilation or containment. Battery replacement alarm alerts staff before a service window is missed.
- USB 2.0 Port for Management: Connect directly to a server or management PC for graceful shutdown scripting via PowerChute or compatible UPS management software. When a power event extends beyond battery runtime, the software can execute an ordered shutdown of VMs or NVR recording services before the battery depletes — protecting both data and hardware.
- 55 dB Noise Level: Rack UPS units run fans under load. At 55 dB, the SMT3000RMUS is within normal office ambient range — suitable for wiring closets adjacent to open work areas, not just dedicated machine rooms.
- 3.4-Minute Full-Load Runtime: At 100% load (2700W), runtime is 3.4 minutes. That is enough time for an ordered shutdown of connected equipment but not for extended ride-through during a prolonged outage. Size your load at 50–60% of capacity to meaningfully extend runtime — or pair with an APC external battery module if your retention requirement is longer. For UPS selection guidance on runtime planning, calculate your actual connected wattage, not nameplate capacity.
- 2U Rack Footprint: Takes two rack units — standard for this watt class. Plan your rack layout to place the UPS at the bottom for center-of-gravity stability, especially in mobile or seismic-rated enclosures.
- Output THD ≤5%: Harmonic distortion at or below 5% means connected power supplies see a clean waveform, reducing heat in transformers and extending component lifespan in sensitive equipment.
Integration & Compatibility
The SMT3000RMUS operates on 120V single-phase power with a NEMA L5-30P input plug (30A twist-lock). Confirm your rack PDU or wall circuit is wired for 30A before deployment — a standard 20A circuit will not support this unit. Output receptacles include both NEMA 5-15R and NEMA 5-20R, covering the full range of 1U server, switching, and PoE switch power cords without adapters.
The USB 2.0 port enables integration with APC PowerChute Business Edition and compatible third-party UPS management tools. Graceful shutdown sequences, runtime alerts, and battery health logging are all available via this interface. The unit accepts input frequencies of 50 or 60 Hz, making it deployable in both North American and international 120V installations where applicable.
For surveillance-specific deployments, this UPS pairs well with enterprise NVR platforms and PoE switch stacks. Calculate your actual load: a 24-port 802.3at PoE switch at full load draws roughly 400–450W; add an NVR at 150–200W and several access points or ancillary devices, and you're well within the 2700W budget with headroom for runtime extension.
Frequently Asked Questions
Q: What input plug does the SMT3000RMUS use, and do I need a special circuit?
A: The SMT3000RMUS uses a NEMA L5-30P twist-lock input plug, which requires a dedicated 30-amp 120V circuit. A standard 15A or 20A outlet will not work. Plan your electrical infrastructure accordingly before installation.
Q: Does the SMT3000RMUS output pure sine wave under battery?
A: Yes. The SMT3000RMUS produces a true pure sine wave output both on utility power and when running on battery. This is critical for loads with active PFC power supplies — such as most modern servers, NVRs, and networking gear — which can malfunction on stepped or simulated sine wave UPS units.
Q: How long will the SMT3000RMUS power my equipment during an outage?
A: At full rated load (2700W), runtime is approximately 3.4 minutes — enough for an ordered shutdown sequence. Running at 50–60% load significantly extends runtime. If you need longer ride-through, reduce connected load or add an external battery module compatible with this Smart-UPS platform.
Q: What types of outlets does the SMT3000RMUS provide?
A: It provides 8 AC outlets in a mix of NEMA 5-15R and NEMA 5-20R configurations, accommodating both standard 15A and 20A equipment without adapters.
Q: How does the SMT3000RMUS protect against voltage sags and surges without switching to battery?
A: The line-interactive topology includes automatic voltage regulation (AVR) that corrects input voltage across a 75V–154V range before touching the battery. This preserves battery life in environments with frequent sags, swells, or brownouts — common in older commercial buildings or sites on the end of a long utility run.
Q: What management interface does the SMT3000RMUS support?
A: The unit includes a USB 2.0 port for direct connection to a server or management workstation. This enables graceful shutdown scripting, runtime monitoring, and battery health alerts via compatible UPS management software such as APC PowerChute.
The SMT3000RMUS is the unit I spec when a client's rack load sits in the 1,500–2,200W range and they want headroom — pure sine wave output, a 75–154V input tolerance that handles weak utility without hammering the battery bank, and enough outlets to avoid a secondary PDU for most mid-density builds. At 98% efficiency, it's not generating a lot of waste heat, which matters in any enclosed telecom or wiring closet.
Technical Highlights:
- 75–154V Input Range (AVR): That's an unusually wide tolerance window for a 120V UPS. On sites with chronic brownouts or at the end of long utility runs, this keeps the battery in float mode rather than cycling — which is where premature battery wear comes from.
- 2700W / 459J Surge Rating: The surge absorber handles transient events before they reach connected ASICs. At 459J, it's rated for the kind of recovery surges that follow a momentary utility interruption — the scenario most likely to spike-kill a marginally protected switch or NVR.
- USB 2.0 + 3.4-Minute Full-Load Runtime: Three and a half minutes isn't a lot of ride-through, but it's enough to run a shutdown script and park your NVR storage safely. Wire the USB to your management server and configure graceful shutdown before day one — don't discover the 3.4-minute ceiling during an actual outage.
Deployment Considerations:
- The NEMA L5-30P input is a hard requirement — this is not a plug-into-a-wall-outlet unit. Confirm a 30A twist-lock circuit is in place or budget the electrical work. Missing this detail at install time is the most common site-readiness failure on this class of UPS.
- Full-load runtime of 3.4 minutes is the spec ceiling — real-world performance depends on battery age and ambient temperature. For surveillance racks where you need more than a graceful shutdown window, target 40–50% load utilization or add an external battery module.
Best fit for a mid-density server or surveillance rack in a commercial building with marginal utility: a 24-port PoE switch, an enterprise NVR, a managed router, and a few ancillary devices — all protected by true sine wave power without the cost or complexity of a three-phase installation.
