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APC SMT750I Smart-UPS 750VA/500W Line-Interactive UPS

Description

Overview

The APC SMT750I is a Smart-UPS line-interactive tower unit rated at 750VA / 500W, built to protect servers, network equipment and instrumentation from voltage disturbances and power outages with intelligent, predictable battery management.Seven Star LLC supplies this item on request with the manufacturer documentation, and availability and lead time are confirmed at quotation. IT and facility engineers specify the SMT750I whenever a compact UPS is needed that goes beyond basic surge protection to deliver true Smart-UPS intelligence: predictive runtime calculation, automatic self-testing and remote management readiness.

As the entry point into APC’s long-established Smart-UPS family, the APC SMT750I carries forward the same SmartSlot architecture and PowerChute software compatibility used across the larger Smart-UPS range, making it straightforward for facilities that already standardize on Smart-UPS units elsewhere to extend the same management tools down to smaller loads. This consistency across the range means a technician trained on any Smart-UPS model can service this unit without additional retraining.

Measurement and Working Principle

The APC SMT750I uses line-interactive topology with Automatic Voltage Regulation: it continuously conditions incoming utility power through boost and trim correction, only transferring the load to battery when voltage falls outside the correctable range. This approach on the unit minimizes wear on the internal battery compared to a standby-only design while still delivering a clean sine-wave output during genuine outages. The unit’s microprocessor continuously calculates runtime based on real-time load and battery condition rather than relying on fixed lookup tables, giving operators of the APC SMT750I an accurate, dynamically updated estimate of remaining backup time on its LCD display.

Engineering Design of the unit

Built in a compact tower chassis measuring approximately 6.2″ H x 5.4″ W x 14.1″ D, the APC SMT750I accepts 230V input through an IEC 320-C14 inlet and delivers a regulated 230V output rated at 500 watts / 750 VA through six IEC 320-C13 outlets, all backed by battery and surge protection. The unit is fitted with a maintenance-free, sealed, spill-proof lead-acid battery, delivering roughly 5 minutes of runtime at full load and 16 minutes at half load, with a typical recharge time of about 3 hours. A backlit LCD interface on the APC SMT750I displays load percentage, battery status, and estimated runtime, while an integrated SmartSlot accepts optional network management cards for SNMP-based remote monitoring. Both USB and RS-232 serial ports are included as standard, and automatic self-diagnostic testing on the unit periodically verifies battery health without operator intervention, flagging a weak or aging battery well before it would fail during an actual outage.

Key Features

  • The APC SMT750I calculates runtime dynamically based on real load and battery condition rather than fixed estimates.
  • The unit provides line-interactive AVR correction, extending battery life by avoiding unnecessary transfers.
  • The APC SMT750I includes an integrated SmartSlot for optional SNMP network management card installation.
  • The APC SMT750I performs automatic self-diagnostic testing to verify battery health without manual checks.
  • This Smart-UPS model offers both USB and RS-232 connectivity for flexible integration with monitoring software.

Industrial Applications

The APC SMT750I is commonly deployed to protect small servers, network switches, VoIP telephony equipment, and instrumentation controllers in offices, control rooms, and light industrial facilities across Oman. Because the APC SMT750I offers Smart-UPS-grade intelligence in a compact footprint, it is frequently specified where a single critical device or small equipment cluster needs predictable, monitored backup power without the cost of a larger rack-mount system, and where floor or shelf space for the UPS itself is limited. System integrators across the GCC also select this Smart-UPS model for branch-office IT closets, security and access-control head-end equipment, and remote monitoring stations, where accurate runtime reporting through PowerChute software allows administrators to schedule safe, orderly shutdowns during extended outages rather than abrupt loss of power once the battery is depleted.

In Oman’s oil and gas and utilities sectors, the APC SMT750I is also used to protect instrumentation racks and local data-logging PCs at unmanned or lightly staffed sites, where the unit’s self-testing and remote SNMP monitoring capability let central operations teams confirm UPS health without a site visit.

Consultants specifying UPS protection for small telecom rooms and building management panels across Muscat also favor the APC SMT750I because its dynamic runtime calculation gives facility staff an honest, real-time picture of remaining autonomy rather than a rough static estimate, which matters when an outage runs longer than the standard 5-to-10-minute grace period assumed for many small loads, giving on-site staff enough warning to save work and shut down equipment gracefully.

Technical Specifications

Model APC SMT750I
Rated Capacity 500 W / 750 VA
Topology Line-interactive with AVR
Nominal Input/Output Voltage 230V
Output Receptacles 6 x IEC 320-C13
Runtime Approx. 5 min at full load, 16 min at half load
Battery Type Maintenance-free, sealed, spill-proof lead-acid
Recharge Time Approx. 3 hours
Communications USB, RS-232, SmartSlot (optional SNMP card)
Dimensions (H x W x D) 6.2″ x 5.4″ x 14.1″ (157 x 138 x 358 mm)
Form Factor Tower

Request a Quote for APC SMT750I Smart-UPS 750VA/500W Line-Interactive UPS

Seven Star LLC is a trusted supplier of APC by Schneider Electric products supplying the APC SMT750I on request, with technical pre-sales support and installation guidance across Oman, the UAE, Saudi Arabia, and the wider GCC. Contact Seven Star LLC today for a fast quotation, availability confirmation, and expert advice on sizing the APC SMT750I to your server, network, or control-room power protection needs.

Browse the full APC range or see more UPS and Batteries products supplied by Seven Star LLC in Oman and the GCC.

APC SMT750I key ratings from the manufacturer data

The table below lists the main values that Schneider Electric publishes for the APC SMT750I. Use it to check the model against your load, rack or room before you request a quotation.

Product range Smart-UPS
Product type Uninterruptible power supply (UPS)
UPS topology Line interactive
Maximum output (VA) 750 VA
Maximum output (W) 500 W
Battery type Lead-acid internal included
Replacement battery cartridge APC RBC48
Number of battery cartridges 1
Typical recharge time 3 h
Expected battery life 3 to 5 year(s)
Transfer time 4 ms typical / 8 ms maximum
Surge energy rating 540 J
Control panel Multifunction LCD status and control console
Mounting Not rack-mountable
Height 157.5 mm
Width 138 mm
Depth 358.1 mm
Operating temperature 0 to 40 °C

Battery replacement and runtime for the APC SMT750I

The SMT750I takes APC RBC48 replacement battery cartridge. Keeping one cartridge in stock shortens the downtime when the UPS self-test reports a weak battery. Schneider Electric gives an expected battery life of 3 to 5 years for this model, and a typical recharge time of 3 hours after a discharge. Temperature has the largest effect on that figure: as a rule of thumb, the life of a sealed lead-acid battery roughly halves for every 10 °C above 25 °C. In Oman, a UPS in an air-conditioned room held at 20 to 25 °C will need far fewer battery replacements than one in a hot plant room or a site cabin. This model does not take external battery packs, so when a longer runtime is needed the usual step is a larger model or a UPS from a range with extended-runtime support.

Looking after several APC units? Our APC UPS replacement battery finder lists the official cartridge and quantity for more than 340 APC models.

Ordering the APC SMT750I for sites in Oman

To quote the SMT750I quickly and correctly, please include:

  • The connected load in watts and VA, with some margin below the 750 VA / 500 W rating
  • The runtime you need at that load, so the battery configuration can be checked
  • Input and output connections and the number of outlets required at the site
  • Monitoring needs: USB, a network management card or integration with a BMS or SCADA system
  • Where the UPS will be installed and the room temperature (the manufacturer operating range is 0 to 40 °C)
  • Whether a spare replacement battery cartridge should be supplied with the unit

Send these details with the Request for Quotation button on this page. Seven Star LLC supplies APC by Schneider Electric equipment as an independent supplier and delivers across Oman, with shipment to other GCC countries on request.

More APC SMT models in our catalogue: APC SMT750C, APC SMT750IC, APC SMT750INCITE, APC SMT750RMI2U, APC SMT750RMI2UC and APC SMT750RMI2UNC.

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About brand

APC is Schneider Electric's brand for uninterruptible power supplies, power distribution units, cooling and racks for IT and control systems. American Power Conversion was founded in 1981 by three engineers from MIT's Lincoln Laboratory and grew into one of the largest UPS makers in the world. Schneider Electric completed its acquisition of APC on 14 February 2007, combined it with MGE UPS Systems, and since 2011 APC has been a product brand of Schneider Electric.
Seven Star LLC lists APC uninterruptible power supplies from desktop Back-UPS units to modular Symmetra systems, together with battery packs and network cards, and sources them for sites in Oman.

APC company profile
Founded1981, USA, as American Power ConversionFoundersThree engineers from MIT Lincoln LaboratoryOwnershipSchneider Electric since 14 February 2007; an APC by Schneider Electric product brand since 2011Product familiesBack-UPS, Easy UPS, Smart-UPS line-interactive, Smart-UPS On-Line SRT and SRV, Galaxy three-phase UPS, rack PDUs, NetShelter racks, network management cards and EcoStruxure IT software

Milestones
1981: American Power Conversion is founded by three MIT Lincoln Laboratory engineers.2006: Schneider Electric announces the acquisition of APC on 30 October.2007: The acquisition is completed on 14 February; APC is combined with MGE UPS Systems.2011: APC becomes a product brand within Schneider Electric.

APC UPS families on this page

APC names its UPS lines by topology and size:

Back-UPS and Back-UPS Pro: line-interactive units for workstations and small loads, such as BX1600MI-MS and BR1600MISmart-UPS: line-interactive models with sine wave output, including SMT750I, SMC1000IC and the Smart-UPS X SMX3000HV with its SMX120BP external battery packSmart-UPS SRT and Smart-UPS RT: online double-conversion units, for example SRT2200XLI, SRT3000XLI, SRT5KRMXLI and SURT8000XLIEasy UPS Online: SRV2KILSymmetra LX and Symmetra PX: modular, scalable systems for larger loads

The AP9641 Network Management Card 3 adds remote monitoring to UPS models with a SmartSlot.

Where APC UPS systems are used

In industrial plants across the GCC, APC UPS units back up DCS and PLC cabinets, operator stations, SCADA servers, telecom racks, fire and gas panels and analyzer shelters. Online double-conversion models are normally chosen for control systems because the load is always fed through the inverter. Line-interactive units suit office IT and less critical loads.

APC products we list
FamilyExamplesUPS and BatteriesAP9641 Network Management Card 3, BR1600MI Back-UPS Pro 1600VA/960W, BX1600MI-MS Back-UPS 1600VA Tower UPS, SMC1000IC Line-Interactive UPS 1000VA 600W, SMC1500I Smart-UPS C 1500VA/900W, SMT750I Smart-UPS 750VA/500W Line-Interactive, SMX120BP Smart-UPS X 120V External Battery, SMX1500RMI2U Smart-UPS X 1500VA Rack/Tower and 9 more

Ordering APC UPS units and parts: what we need

Send the full SKU, for example SRT3000XLI, and not only the VA rating. The letters carry meaning: an I in the suffix marks a 230 V international model, XL an extended-run version that accepts external battery packs, and RM a rack-mount form. For a new requirement, give load in watts, input and output voltage, required runtime, tower or rack format, and the plug or hardwire arrangement. For batteries, send the UPS SKU and serial number so the correct replacement battery cartridge can be found in APC documentation.

Replacement batteries, battery packs and spares
Most APC service work is battery work. APC Replacement Battery Cartridges, sold under RBC and APCRBC numbers, are sets of sealed valve-regulated lead-acid blocks that arrive pre-wired with the connectors for the UPS models they are listed for, so a weak battery can be changed as one unit and, on hot-swap models, without switching the load off. Some newer cartridges carry an -LI suffix for lithium-ion versions. External battery packs extend runtime on XL and SRT models, and are chained to the UPS through the battery connector on the rear panel. To find the right cartridge, send the UPS SKU and serial number; the same UPS can use different cartridges across hardware revisions.
Modular and three-phase APC systems
Symmetra LX and Symmetra RM: single-phase modular UPS frames with hot-swappable power modules, battery modules and intelligence modules, so a failed module can be exchanged while the load stays on protected power.Symmetra PX: three-phase modular UPS for data rooms, built from power modules with N+1 redundancy and battery modules for runtime.Smart-UPS VT: three-phase double-conversion UPS for small data rooms and technical buildings.Silcon: large three-phase UPS based on delta conversion, still running in many plants and data centres; spare part kits are listed in levels (SPL1 to SPL4) so sites can hold the parts that match their service plan.Easy UPS On-Line (SRV): cost-focused double-conversion units, many with external battery pack support.
APC UPS in Oman and GCC conditions
Oman supplies 240 V single-phase and 415 V three-phase at 50 Hz, so international models with an I suffix (230 V nominal, adjustable to 240 V on most Smart-UPS units) are the usual choice. Heat is the main enemy: most APC UPS units are rated for operation up to 40 °C, while summer shade temperatures in Muscat and the interior pass 45 °C, and a lead-acid battery loses roughly half its service life for every 10 °C above 25 °C. Install UPS and batteries in a cooled room, keep filters clean in dusty inland sites, and size the standby generator with margin for UPS input and battery charging current.
All APC UPS systems, batteries and accessories on this site are grouped under UPS and Batteries, and the wider Schneider Electric range can be quoted together with them.

Facts checked against APC by Schneider Electric's published history, October 2026.

Browse APC products by category: UPS and Batteries.
Need a replacement battery for an APC UPS you already run? Use our APC UPS replacement battery finder to match the model to its official RBC cartridge.

FAQ

Questions about the APC SMT750I Smart-UPS 750VA/500W Line-Interactive

Answers from our engineering team on installation, compatibility and integration.

01What is the rated capacity of the APC SMT750I?
The APC SMT750I is rated at 500 watts / 750 VA with a 230V input and output.
02Does the APC SMT750I calculate runtime dynamically?
Yes. The APC SMT750I uses its microprocessor to calculate runtime in real time based on actual load and battery condition rather than a fixed lookup table.
03What topology does the APC SMT750I use?
The APC SMT750I uses line-interactive topology with Automatic Voltage Regulation, correcting minor voltage disturbances without switching to battery.
04Can the APC SMT750I be remotely monitored?
Yes. The APC SMT750I includes an integrated SmartSlot for an optional SNMP network management card, plus built-in USB and RS-232 connectivity.
05What applications is the APC SMT750I suited for in Oman?
Seven Star LLC supplies the APC SMT750I for small servers, network switches, instrumentation controllers, and branch-office IT closets across Oman and the GCC.