APC by Schneider Electric SMT3000RMI2UNC Smart-UPS 3000VA LCD Rack-Mount 2U 230V with Network Card
Overview
The APC by Schneider Electric SMT3000RMI2UNC is a 3 kVA / 2700 W line-interactive rack-mount UPS designed for server rooms, network closets, and surveillance infrastructure where clean, conditioned power isn't optional — it's a baseline requirement. Occupying 2U of rack space, it ships with a built-in network management card, giving you remote visibility and control without adding hardware or hunting for an open management slot. If your environment runs 230V mains and you need a rack-resident power bridge that delivers genuine sine wave output, this is the unit to evaluate.
The SMT3000RMI2UNC sits in the Power & UPS category as a mid-tier workhorse: enough capacity to carry a multi-server rack segment or a dense NVR stack through brownouts and brief outages while giving your software a clean shutdown window. The APC by Schneider Electric Smart-UPS line has a long track record in commercial and enterprise deployments precisely because the topology and waveform are not cut-corner designs.
Key Features
- Line-Interactive Topology with True Sine Wave Output: Line-interactive design corrects voltage sags and swells without switching to battery, which extends battery life significantly compared to standby (offline) units. The sine wave output matters for active PFC power supplies — the kind found in modern servers, NVRs, and managed switches. Feeding a modified sine wave to an active PFC supply causes overheating and premature failure; this unit avoids that entirely.
- 3 kVA / 2700 W Capacity: 2700 W of real power means you can load this unit to a realistic 80% ceiling (around 2160 W) and still have headroom for inrush spikes. Size your attached load carefully — the 2700 W figure is what counts for budgeting circuits, not the VA rating.
- Wide Input Voltage Window (151–302 V): The SMT3000RMI2UNC tolerates input swings from 151 V to 302 V before switching to battery. In facilities with aging electrical infrastructure or generator-supplied power, that range keeps the UPS on mains through most disturbances, preserving battery runtime for genuine outages.
- Input Frequency Flexibility (50/60 Hz): Accepts both 50 Hz and 60 Hz mains, which matters if this unit will move between facilities or operate in a region with variable grid frequency.
- Output Voltage Regulation (220–240 V): Output is held between 220 V and 240 V regardless of input sags within the operating window, protecting sensitive equipment from undervoltage damage without pulling battery reserves unnecessarily.
- 4 ms Transfer Time: Switching to battery in 4 ms keeps power supplies stable through the transition. Most active PFC supplies can bridge a 4 ms gap without resetting — confirm against your specific load's hold-up time spec if you are running particularly sensitive equipment.
- 320 J Surge Energy Rating: Surge protection rated at 320 joules handles transient spikes from nearby switching events or inductive loads. For a hardened rack environment this is baseline protection; if you are in a lightning-prone region or running long unprotected cable runs, evaluate whether additional external surge suppression is warranted upstream.
- Built-In Network Management Card: The included network card means SNMP, web-based management, and remote shutdown scripting are available out of the box. You can integrate this UPS into your NMS, configure graceful shutdown triggers per host, and monitor load and battery health without a console cable. This is the feature that separates the SMT3000RMI2UNC from the base SMT3000RMI2U.
- LCD Front Panel: The local LCD gives you at-a-glance runtime estimates, load percentage, battery charge status, and active alarms without logging into the management interface — useful during initial commissioning or physical audits.
- Audible Alarms Including Battery Replacement Alert: The unit signals battery replacement need acoustically, reducing the risk of discovering a degraded battery only when you need the runtime. At 55 dB, the alarm is audible in a typical server room environment without being disruptive in adjacent spaces.
- Emergency Power Off (EPO) Support: EPO capability lets you integrate this UPS into a facility-level emergency shutdown circuit — required in many data center and commercial installations where code mandates a single-point power disconnect.
Integration & Compatibility
The web-based management interface, accessible via the built-in network management card, supports SNMP and allows integration with most enterprise NMS platforms and UPS management software. The network card enables graceful shutdown coordination with servers and NVRs running compatible UPS daemon software, reducing the risk of file-system corruption during extended outages. For network video recorders and surveillance servers drawing continuous load, the clean sine wave output and tight output voltage regulation make this a reliable power foundation. Pair with an appropriate rack PDU to distribute the conditioned output to multiple downstream devices cleanly.
Frequently Asked Questions
Q: What is the difference between the SMT3000RMI2UNC and the SMT3000RMI2U?
A: The SMT3000RMI2UNC includes a factory-installed network management card, enabling SNMP monitoring, web-based management, and remote shutdown integration. The base SMT3000RMI2U does not include this card. If remote management and graceful shutdown scripting are required in your deployment, the NC variant is the correct choice.
Q: Does the SMT3000RMI2UNC output a true sine wave?
A: Yes. The SMT3000RMI2UNC produces a true sine wave output both on mains and when running on battery. This is critical for loads with active PFC power supplies — servers, modern NVRs, and managed switches — which can be damaged or behave unpredictably when fed a modified or stepped sine wave.
Q: What input voltage range does the SMT3000RMI2UNC support?
A: The unit accepts input voltages from 151 V to 302 V before switching to battery. This wide window allows it to ride through most voltage sags and swells on the mains without consuming battery runtime.
Q: How much rack space does the SMT3000RMI2UNC require?
A: The SMT3000RMI2UNC is a 2U rack-mount unit. Ensure you have two contiguous rack units available in your enclosure, along with adequate ventilation clearance per APC's installation guidelines.
Q: Can the SMT3000RMI2UNC be managed remotely without additional hardware?
A: Yes. The built-in network management card provides web-based management and SNMP access out of the box. No additional management cards or modules are required.
Q: What does the 55 dB noise level mean for placement decisions?
A: At 55 dB, this unit is appropriate for a dedicated server room or network closet but would be noticeable in a quiet office environment. If the UPS will be installed in a noise-sensitive space, plan for a dedicated enclosure or room with appropriate acoustic isolation.
The detail I keep coming back to on the SMT3000RMI2UNC is the 151–302 V input operating window combined with the line-interactive topology. In practice, that means this unit stays on mains through the kind of voltage sags that trip up narrower-window UPS designs, preserving battery capacity for genuine outages rather than burning runtime on routine power quality events. For a surveillance rack carrying NVRs and PoE switches running 24/7, that distinction matters more than the headline VA number.
Technical Highlights:
- True Sine Wave on Battery: The sine wave output is non-negotiable for any rack with modern active PFC power supplies. At 2700 W real power capacity, the SMT3000RMI2UNC can carry a fully loaded 2U NVR plus a 24-port PoE switch and still have margin — budget load to 80% (around 2160 W) as a ceiling.
- 4 ms Transfer Time: Switching to battery in 4 ms keeps active PFC supplies stable through the transition. Most commercial server and NVR power supplies spec a hold-up time of 10–20 ms, so 4 ms is well within the safe window — but verify against your specific equipment's datasheet before finalizing the deployment.
- Built-In Network Card: Having SNMP and web management included at factory configuration means you can wire this into your NMS on day one without ordering a separate card or waiting on a slot upgrade. Remote load monitoring and graceful shutdown scripting are available immediately post-install.
Deployment Considerations:
- The 55 dB operating noise level is workable in a dedicated IDF or server room but will be noticeable if this unit ends up in a low-ambient environment like a quiet back office. Confirm placement before finalizing the rack layout.
- The 320 J surge rating covers typical switching transients but is not a substitute for upstream facility-level surge protection in lightning-exposed installations. If this rack feeds cameras or network gear on long outdoor cable runs, add dedicated surge suppression at the panel level.
For a 230V commercial surveillance infrastructure — an NVR stack, core switching, and access control head-end in a dedicated rack — the SMT3000RMI2UNC is a well-matched fit: enough capacity to carry the load, clean output to protect the equipment, and network management already installed so your monitoring platform sees the UPS from the first day of operation.
