APC Smart-UPS, Line Interactive, 750VA, Tower, 230V
PRODUCT DESCRIPTION
APC Smart-UPS, Line Interactive, 750VA, Tower, 230V (SMT750I) - 3 Years Local Warranty
Product status: the SMT750I has reached end of commercialisation at Schneider Electric (4 August 2026) and is superseded by the SmartConnect model APC SMT750IC. This page is maintained as the reference datasheet for the SMT750I. Contact SourceIT for remaining stock, or for the current replacement.
APC SMT750I — 750 VA / 500 W Line-Interactive UPS for Singapore 230V Power
The APC Smart-UPS SMT750I is a line-interactive uninterruptible power supply rated at 750 VA / 500 W for 230 V single-phase supply — the standard Singapore mains configuration. Line-interactive topology means the UPS sits between your equipment and the PUB grid, filtering and correcting the incoming supply continuously and switching to battery only when the mains falls outside its window. For the brownouts and brief dips that arrive with a Singapore thunderstorm, that is exactly the right behaviour: the load never notices, and the battery is not cycled unnecessarily.
Automatic Voltage Regulation Protects Battery Life
Automatic Voltage Regulation (AVR) is the feature that separates a Smart-UPS from a basic backup unit. When mains voltage sags or surges, AVR corrects it using the transformer rather than dropping to battery. On a supply that dips repeatedly — a comms cabinet on a shared riser, an SME office at the end of a long feed, a site near heavy plant — a UPS without AVR will discharge and recharge dozens of times a week, and the battery ages accordingly. The SMT750I rides those events through on mains, so the battery is held in reserve for real outages.
Sine Wave Output for Servers, Switches and Active-PFC Power Supplies
Schneider Electric specifies sine wave output for the SMT750I. This is the specification to check before you buy: current server and workstation power supplies use active power factor correction, and active-PFC supplies can alarm, cut out or refuse to transfer on the step-approximated waveform used in entry-level UPS models. On a sine wave they behave normally. Output connections are 6 × IEC 60320 C13, plus 2 × IEC jumpers, and output voltage is configurable for 220 V, 230 V or 240 V nominal.
Tower Protection for the SME Office, Home Office and Under-Desk Server
As a tower unit at 157.5 × 138 × 358.1 mm and 13.18 kg, the SMT750I suits a standalone server, a small NAS and switch stack, a reception or point-of-sale position, or a home office where a rack is not an option. The multifunction LCD reports load, remaining capacity and fault conditions directly on the front panel. Site it with ventilation clearance and away from direct sun — sustained heat, not cycle count, is what usually ends a VRLA battery's life in a Singapore installation.
Management, Hot-Swap Batteries and Local Singapore Supply
Serial and USB ports drive PowerChute Serial Shutdown for unattended, graceful shutdown of an attached server. One empty SmartSlot accepts an optional APC Network Management Card 3 (AP9640 or AP9641) when you need SNMP, a web interface or EcoStruxure IT — network management is an option on this model, not a built-in feature. The battery cartridge is user-replaceable and hot-swappable, so the load stays protected during a battery change. SourceIT supplies the SMT750I in Singapore with a GST invoice and local warranty support.
APC SMT750I Datasheet — Technical Specifications
Full technical specification for the APC SMT750I, taken from the Schneider Electric product datasheet and user guide for this exact part number. Figures Schneider does not publish for this model are omitted rather than estimated.
General
| Part Number (SKU) | SMT750I |
| Product Name | APC Smart-UPS, Line Interactive, 750VA, Tower, 230V |
| Brand | APC by Schneider Electric |
| UPS Topology | Line interactive |
| Automatic Voltage Regulation (AVR) | Yes — corrects high and low mains voltage without discharging the battery |
| Form Factor | Tower |
| Display | Multifunction LCD status and control console |
| Manufacturer Warranty | 3 years UPS electronics / 2 years battery (APC by Schneider Electric) |
| Local Warranty | Local Warranty (Singapore) |
| Certifications | CE, EAC, RCM, VDE |
| Standards | EN/IEC 62040-1:2019/A11:2021; EN/IEC 62040-2:2006/AC:2006; EN/IEC 62040-2:2018 |
Output
| Output Power Capacity | 750 VA / 500 W |
| Nominal Output Voltage | 230 V AC, 1 phase (configurable for 220 V / 230 V / 240 V) |
| Output Frequency | 47–53 Hz for 50 Hz nominal, sync to mains; 57–63 Hz for 60 Hz nominal |
| Output Waveform | Sine wave |
| Output Voltage Distortion | Less than 5% at full load |
| Transfer Time | 4 ms typical, 8 ms maximum |
| Output Connections | 6 × IEC 60320 C13, plus 2 × IEC jumpers |
| Surge Energy Rating | 540 Joules |
Input
| Nominal Input Voltage | 230 V AC, 1 phase |
| Input Voltage Range | 160–280 V (151–302 V adjustable) |
| Input Frequency | 50/60 Hz ± 3 Hz, auto-sensing |
| Input Connection Type | IEC 60320 C14 |
| Input Cord Length | 1.8 m |
Batteries & Runtime
| Battery Type | Maintenance-free sealed lead-acid (VRLA) |
| Replacement Battery Cartridge | RBC48 — 1 required per UPS |
| Battery Replaceable by User | Yes — hot-swappable replacement battery cartridge |
| Typical Recharge Time | 3 hours |
| Expected Battery Life | 3–5 years |
| Runtime | Runtime depends on connected load; Schneider Electric does not publish a runtime table for this model. Contact SourceIT for a load-based sizing estimate. |
Communications & Management
| Interface Ports | Serial (RS-232) and USB. Serial and USB cannot be used at the same time. |
| SmartSlot | One SmartSlot, supplied empty — accepts an optional APC Network Management Card or Dry Contact I/O card (sold separately) |
| Network Management | Not built in. Add an AP9640 or AP9641 Network Management Card 3 to the SmartSlot. |
| Software | PowerChute Serial Shutdown for unattended shutdown, monitoring and control (download from Schneider Electric) |
| Audible Alarm | Alarm when on battery, distinctive low-battery alarm |
Physical & Environmental
| Dimensions (H × W × D) | 157.5 × 138 × 358.1 mm |
| Net Weight | 13.18 kg |
| Colour | Black |
| Operating Temperature | 0 to 40 °C |
| Storage Temperature | -15 to 45 °C |
| Relative Humidity | 0 to 95%, non-condensing |
| Maximum Operating Altitude | 3,000 m (10,000 ft) |
| Audible Noise | 40 dBA at 1 metre |
| Ingress Protection | IP20 |
Compatibility & Runtime
What you can plug in
The SMT750I delivers 750 VA / 500 W at 230 V. Size the UPS on the watt figure, not the VA figure: add up the real power draw of everything you intend to protect and keep it comfortably below 500 W. Output is via 6 × IEC 60320 C13, plus 2 × IEC jumpers. Most rack servers, switches, firewalls and NAS units ship with a C13 cordset, so they connect directly.
Sine wave output and active-PFC power supplies
Schneider Electric specifies sine wave output for the SMT750I. That matters in a server room: modern active power-factor-corrected server and workstation PSUs can shut down or alarm on the step-approximated waveform used by entry-level UPS models, but they run normally on a sine wave. If you are protecting active-PFC hardware, this is the part of the specification to check.
Transfer time on the SMT750I is 4 ms typical, 8 ms maximum, comfortably inside the ride-through window of a typical server power supply.
Runtime
Runtime is entirely a function of load — a UPS at 30% load runs far longer than the same UPS at 90%. Schneider Electric does not publish a runtime table for the SMT750I, so SourceIT does not quote one here. Tell us your actual load in watts and we will size the runtime for you before you order.
Replacement battery
The SMT750I takes the APC RBC48 replacement battery cartridge — one per UPS. The cartridge is user-replaceable and hot-swappable, so the load stays protected while you change it. RBC part numbers are not interchangeable between Smart-UPS models, or between a standard model and its SmartConnect equivalent, so order by the part number above. In Singapore's humidity and year-round air-conditioned server rooms, plan on replacing the cartridge within the 3–5 year service window rather than waiting for a failed self-test.
Siting the unit
This is a tower unit and is not rack-mountable. Dimensions are 157.5 × 138 × 358.1 mm and net weight is 13.18 kg. Allow clearance for ventilation and keep it off carpet and out of direct sun; sustained heat is the single biggest shortener of VRLA battery life in Singapore installations.
Management and monitoring options
The SMT750I has serial and USB ports and one empty SmartSlot. Networked monitoring is not built in — you add it by fitting an APC Network Management Card 3 (AP9640), or AP9641 if you also want environmental sensor inputs. An AP9613 Dry Contact I/O card suits building-management integration. For directly attached servers, PowerChute Serial Shutdown handles graceful shutdown over USB or serial.
Package Contents & Smart-UPS SMT Tower Ordering Information
In the box
- APC SMT750I uninterruptible power supply
- USB cable
- Smart-UPS signalling RS-232 serial cable
- Input power cord
- Installation guide and product documentation
- PowerChute Serial Shutdown software download guide
Package contents are as listed by Schneider Electric for this part number. Older datasheet revisions also list a documentation CD; current shipments supply documentation and PowerChute as downloads.
Smart-UPS SMT Tower — ordering information
| SMT750I (this listing) | 750 VA / 500 W · 6 × C13 · RBC48 |
| APC SMT1000I | 1,000 VA / 700 W · 8 × C13 · RBC6 |
| APC SMT1500I | 1,500 VA / 1,000 W · 8 × C13 · RBC7 |
| APC SMT2200I | 2,200 VA / 1,980 W · 8 × C13 + 1 × C19 · RBC55 |
| APC SMT3000I | 3,000 VA / 2,700 W · 8 × C13 + 1 × C19 · RBC55 |
Current SmartConnect replacement
The SMT750I has been superseded by the APC SmartConnect build. If you are specifying new equipment rather than matching an existing installation, order the successor:
| APC SMT750IC | 750 VA / 500 W · adds the APC SmartConnect cloud monitoring port · current model, in stock |
Replacement battery cartridge
| APC RBC48 | Replacement battery cartridge for the SMT750I · 1 required per UPS · user-replaceable |
SmartSlot accessory cards
| APC AP9640 | Network Management Card 3 · SNMP, web interface and EcoStruxure IT connectivity |
| APC AP9641 | Network Management Card 3 with environmental monitoring inputs |
| APC AP9613 | Dry Contact I/O SmartSlot card for building-management integration |
All prices from SourceIT Pte Ltd are quoted for local Singapore supply with a GST invoice. Email sales@sourceit.com.sg for stock, lead time and volume pricing.
Datasheet & Downloads
Schneider Electric product page — SMT750I
Links open on Schneider Electric's official product and document pages. The specifications published on this page are taken from these documents; where Schneider does not state a figure for the SMT750I, SourceIT leaves it out rather than estimating it.
Frequently Asked Questions — APC SMT750I
What do VA and W mean, and how do I size the SMT750I for my load?
VA is apparent power and W is real power; the SMT750I is rated at 750 VA / 500 W and the watt figure is the one that limits what you can connect. Add up the real draw of every device you want to protect — a small rack server is typically 150–350 W, a switch 20–60 W, a firewall 20–40 W — and keep the total comfortably below 500 W so you have both headroom and useful runtime. If the sum is close to the limit, size up rather than run the UPS at 90%.
How long will the SMT750I run on battery?
That depends entirely on the connected load, and Schneider Electric does not publish a runtime table for this model, so SourceIT does not quote one. As a rule, a line-interactive UPS of this class is designed to ride out the brief dips and short outages that are typical of the PUB grid and to give you time for a clean shutdown — not to run a rack for hours. Send us your load in watts and we will size it properly.
What is the difference between the SMT750I and the "IC" SmartConnect version (SMT750IC)?
The SmartConnect models add a dedicated Ethernet port that reports the UPS to APC's free SmartConnect cloud portal, giving remote status and alerting without a management card. They are genuinely different builds — not just a badge — and some specifications, including transfer time and the replacement battery cartridge part number, differ between a standard model and its SmartConnect equivalent. The SMT750I is the standard build. The "NC" suffix on other Smart-UPS models means a Network Management Card is factory-fitted; that is different again.
Is the output a true sine wave, and will it work with an active-PFC server power supply?
Yes — Schneider Electric specifies sine wave output for the SMT750I. Active power-factor-corrected PSUs, which most current servers and many workstations use, can trip or alarm on the step-approximated waveform found in entry-level Back-UPS and Easy UPS models, but they run normally on a sine wave. This is one of the main reasons to choose a Smart-UPS over a home-office model for server-room equipment.
Which replacement battery does the SMT750I take, and can I change it myself?
It takes the APC RBC48 replacement battery cartridge, one per unit. It is user-replaceable and hot-swappable, so the connected load stays protected during the swap. Expected service life is 3–5 years; Singapore's ambient heat and humidity tend to push VRLA batteries toward the shorter end of any published range, so budget for replacement rather than waiting for a failed self-test. RBC part numbers are not interchangeable across Smart-UPS models — order by part number.
Can the SMT750I be rack-mounted?
No. This is a tower-form unit and Schneider Electric lists it as not rack-mountable. For a 19-inch cabinet, use the rackmount models in the same range instead: SMT750RMI2U, SMT1000RMI2U, SMT1500RMI2U, SMT2200RMI2U and SMT3000RMI2U. They are 2U chassis with the same line-interactive topology and sine wave output, but the outlet counts and replacement battery cartridges differ from the tower models, so check the specification for the exact part number you order.
Can I monitor the SMT750I over the network?
Not out of the box. The unit has serial and USB ports and one empty SmartSlot; network management is an add-in card, not a built-in feature. Fit an AP9640 Network Management Card 3 for SNMP and a web interface, or an AP9641 if you also want temperature and humidity sensor inputs. Without a card, use PowerChute Serial Shutdown on the attached server.
Is the SMT750I covered by warranty in Singapore?
Yes. Every APC SMT750I sold by SourceIT comes with local Singapore warranty and a GST invoice; APC backs the SMT750I with a 3-year UPS / 2-year battery manufacturer warranty. Schneider Electric's Singapore support FAQ and the product datasheet both state three years on the UPS hardware and two years on the battery for the Smart-UPS SMT range, with no separate European and rest-of-world figure, so that is the term that applies here.
