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APC Smart-UPS 5.4kVA rackmount 3U unit dark metal front panel outlets handles rails

APC

APC SRT5KRMXLT 5.4kVA 208V UPS 3U 2x L6-20R 2x L6-30R Network Card SmartSlot Extended Runtime Rail Kit

SKU CH-TBYZ-2VFAB MPN SRT5KRMXLT

Rackmount on-line UPS delivers 5.4 kVA at 208 V with four locking outlets, network card, SmartSlot and extended runtime in 3U

  • AC input voltage208 V
  • Input line frequency40–70 Hz (auto sensing)
  • Power inputNEMA L6-30P
  • Volt-ampere rating5000 VA
  • Power rating4250 W
  • Voltage output208 V

Model SRT5KRMXLT

  • On-line double-conversion topology delivers clean sine-wave power
  • 4 kVA / 4250 W rating handles dense server loads
  • 5-hour recharge restores backup capacity quickly
  • Four NEMA outlets (two L6-20R, two L6-30R) connect varied equipment
  • SmartSlot plus USB, serial and network ports enable remote management

Rackmount UPS for 208V Server Loads

The APC Smart-UPS On-Line SRT5KRMXLT delivers 5.4 kVA and 4250 W of double-conversion sine-wave power in a 3U rackmount chassis. It suits server rooms and network closets that require continuous clean power for critical 208 V equipment.

Verify 30 A Service and L6-30P Feed

Confirm the site provides a 208 V single-phase circuit terminated with a NEMA L6-30P plug. The unit draws up to 30 A and occupies 3U of rack depth; ensure the rack can support the installed weight and that clearance allows the rear outlets and interface ports to be accessed.

Network Card and Rail Kit Accelerate Deployment

A pre-installed network management card enables SNMP and web monitoring through the RJ-45 10/100 port, while the SmartSlot remains open for additional accessories. The included rail kit, mounting brackets and hardware let two people secure the chassis without sourcing separate sliding rails.

How it compares

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

Price $3,859.99
Pricier than about 87% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameAPC
Product lineSmart-UPS On-Line
Model nameSRT5KRMXLT
Ports & slots
Communication portsContact Closure, RJ-45 10/100 Base-T, RJ-45 Serial, Smart-Slot, USB
Power
AC input voltage208 V
Input line frequency40–70 Hz (auto sensing)
Power inputNEMA L6-30P
Volt-ampere rating5000 VA
Power rating4250 W
Voltage output208 V
AC output frequency50/60 Hz +/- 3 Hz
Power outlets4
Battery typeSealed Lead Acid
Runtime on battery1–30 minutes
Battery charge time1.5 hour(s)
Replacement batteryAPCRBC140
AlertsAudible and visible alarms prioritized by severity
Surge protection rating480 Joules
Size & build
Rack mounting3U
Product dimensions5.1 in × 17 in × 28.32 in
Product weight199 lb (90.3 kg)
Shipping weight90.27 kg
Package size953 × 622 × 330 mm
In the box
In the boxAPC Smart-UPS SRT5KRMXLT, Documentation CD, Rack Mounting brackets, Rack mounting hardware, Rack Mounting support rails, USB cable, User Manual, Warranty card, Web / SNMP Management Card
Environment & compliance
Regulatory approvalsCSA C22.2 No.107.3-05, ENERGY STAR (USA), FCC Part 15 Class A, UL 1778

Other versions of this model

5 more in the same range

Questions about this item

What comes in the box and what must I buy separately?

The package includes the UPS, documentation CD, rack mounting brackets, hardware, support rails, and a USB cable. The replacement battery cartridge APCRBC140 is sold separately.

How do I choose between the L6-20R and L6-30R outlets for my equipment?

The unit provides two NEMA L6-20R and two NEMA L6-30R outlets, all delivering 208 V. Match each device's plug to the corresponding receptacle rating.

What does the 5.4 kVA rating mean for actual load capacity in my rack?

The UPS supports up to 5,400 VA or 4,250 W of connected equipment at 208 V output with a pure sine-wave waveform.

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