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Rectangular black 2U rackmount UPS with front LCD display and rear NEMA outlets

APC

APC Smart-UPS X SMX750C 750VA 675W UPS

SKU CH-98S8-QQMA8 MPN SMX750C

Provides 750VA battery backup with 13 minutes runtime at full load and eight NEMA 5-15R outlets

  • Voltage version120 V
  • AC input voltage75–154 V Adjustable, 82–143 V
  • Input line frequency50/60 Hz +/- 3 Hz Auto-sensing
  • Power inputNEMA 5-15P
  • Volt-ampere rating750 VA
  • Power rating675 W

Model SMX750C

  • 750VA 675W capacity protects critical equipment during outages
  • Eight NEMA 5-15R outlets support multiple devices simultaneously
  • SmartSlot and USB interfaces enable remote monitoring and control
  • Lead-acid battery delivers 13 minutes runtime at full load
  • CUL and UL 1778 listings confirm safety compliance

Power capacity and form factor

The APC Smart-UPS X SMX750C is a 750VA, 675W uninterruptible power supply in a 2U rackmount chassis. It provides 120V output through eight NEMA 5-15R outlets and connects via a NEMA 5-15P plug. A lead-acid battery delivers 13 minutes of runtime at full load and recharges in three hours using the replaceable APCRBC116 cartridge.

Suitable environments and limitations

This unit suits rack-mounted servers, network gear and workstations that operate on 120V power and need battery-backed outlets with USB and Smart-Slot management. It is not for installations that require 2U rack space exceeding the listed dimensions or for loads that exceed the 675W rating. Buyers needing longer runtime at full load should consider external battery options.

Deciding specification

The 750VA apparent-power rating and 675W real-power limit determine whether your connected equipment stays within the UPS capacity. Verify the total wattage of every device you plan to protect before purchasing.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $608.99
Cheaper than about 62% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameAPC
Product lineSmart-UPS X
Model nameSMX750C
Ports & slots
Communication portsSmart-Slot, USB
Power
Voltage version120 V
AC input voltage75–154 V Adjustable, 82–143 V
Input line frequency50/60 Hz +/- 3 Hz Auto-sensing
Power inputNEMA 5-15P
Volt-ampere rating750 VA
Power rating675 W
Voltage output120 V
AC output frequency50/60 Hz +/- 3 Hz Sync to mains
Power outlets8
Battery typeLead Acid Battery
Runtime on batteryFull Load: 13 min
Battery charge time3 hour(s)
Replacement batteryAPCRBC116
AlertsAlarm when on battery : distinctive low battery alarm : overload continuous tone alarm
Surge protection rating645 Joules
Size & build
Rack mounting2U
Product dimensions17.01 in × 3.5 in × 19.29 in
Product weight48.61 lb (22 kg)
Shipping weight26.50 kg
Package size620 × 589 × 246 mm
Environment & compliance
Regulatory approvalsCUL listed, UL 1778

Other versions of this model

4 more in the same range

Questions about this item

How do I install the SMX750C in a rack and what step is often missed?

Mount the 2U chassis using the included brackets, connect the NEMA 5-15P plug to a 120V branch circuit, then insert the Smart-Slot management card before powering on; skipping the card installation means no network monitoring.

Which replaceable battery kit does this unit need and when should I swap it?

Order the APCRBC116 kit; typical lead-acid life is three to five years, so plan replacement when runtime drops below the 13-minute full-load figure or the low-battery alarm sounds.

What is the first limit reached during a long outage at maximum load?

The 675-watt battery capacity is exhausted after 13 minutes at full load, so runtime is the limiting factor before the overload alarm or thermal shutdown would activate.

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