APC SURT6000RMXLT3U Smart-UPS 6000VA 208V UPS / Battery Backup


DiscTech Item #: APC-SURT6000RMXLT3U-RF-OE

  • Special Order - Ships in 5-10 business days
    Special Order - Ships in 5-10 business days

    This item has a lead time for fulfilment (as listed), this is approximate. Your credit card will be authorized in full on the day of ordering; it will not be charged until the day of shipment.


U Height: 3U

Wattage/VA: 4200W

Voltage: 208V

APC SURT6000RMXLT3U Smart-UPS On-Line RT 6000VA / 4200W 208V 3U Uninterruptible Power Supply - Refurbished

APC SURT6000RMXLT3U Smart-UPS On-Line RT 6000VA / 4200W 208V 3U Uninterruptible Power Supply - Refurbished


  • Automatic internal bypass - Supplies utility power to the connected loads in the event of a UPS power overload or fault.
  • Scalable runtime - Allows additional run time to be quickly added as needed.
  • Intelligent battery management - Maximizes battery performance, life, and reliability through intelligent, precision charging.
  • Hot-swappable batteries - Ensures clean, uninterrupted power to protected equipment while batteries are being replaced
  • Automatic restart of loads after UPS shutdown - Automatically starts up the connected equipment upon the return of utility power.
  • Temperature-compensated battery charging - Prolongs battery life by regulating the charge voltage according to battery temperature.


  • Network manageable - Provides remote power management of the UPS over the network.
  • InfraStruXure Manager Compatible - Enables centralized management via the APC InfraStruXure Manager.
  • SmartSlot - Customize UPS capabilities with management cards.
  • LED status indicators - Quickly understand unit and power status with visual indicators.
  • Serial connectivity - Provides management of the UPS via a serial port.


  • Plug-and-Play external batteries - Ensures clean, uninterrupted power to the loads when adding extra runtime to the UPS.
  • Rack/Tower convertible - Protects the initial investment in the UPS when migrating from tower to rack-mount environment.
  • Flash upgradeable firmware - Install maintenance releases of firmware remotely using FTP.


  • User-replaceable batteries - Increases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR)
  • Automatic self-test - Periodic battery self-test ensures early detection of a battery that needs to be replaced.
  • Predicitive failure notification - Provides early-warning fault analysis ensuring proactive component replacement.
  • Disconnected battery notification - Warns when a battery is not available to provide backup power.
  • Audible alarms - Provides notification of changing utility power and UPS power conditions


  • Frequency and voltage regulation - Gives higher application availability by correcting poor frequency and voltage conditions without using the battery.
  • Power conditioning - Protects connected loads from surges, spikes, lightning, and other power disturbances.
  • Input power factor correction - Minimizes installation costs by enabling the use of smaller generators and cabling.
  • Generator compatible - Ensures clean, uninterrupted power to protected equipment when generator power is used.
  • Cold-start capable - Provides temporary battery power when the utility power is out.
  • Resettable circuit breaker - Easy recovery from overloads; no need to replace a fuse.
  • Safety-agency approved - Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment.

Model numberSURT6000RMXLT3U
Output Power Capacity4200 Watts / 6000 VA
Max Configurable Power4200 Watts / 6000 VA
Normal Output Voltage208V
Output Voltage NoteConfigurable for 208 or 240 nominal output voltage
Efficiency at Full Load92.0%
Output Voltage DistortionLess than 3%
Output Frequency (sync to mains)50/60 Hz +/- 3 Hz user adjustable +/- 0.1
Other Output Voltages240
Crest Factor3 : 1
TopologyDouble Conversion Online
Waveform TypeSine wave
Output Connections(2) NEMA L6-20R
(2) NEMA L6-30R
BypassInternal Bypass (Automatic or Manual)
Nominal Input Voltage208V
Input Frequency50/60 Hz +/- 5 Hz (auto sensing)
Input ConnectionsNEMA L6-30P
Cord Length10 feet (3.05 meters)
Input voltage range for main operations160 - 280V
Input voltage adjustable range for mains operation100 - 280V
Other Input Voltage240
Battery TypeMaintenance-free sealed Lead-Acid battery with suspended electrolyte
Included Battery Modules2
Typical recharge time2.50 hour(s)
Replacement BatteryAPCRBC140
RBC Quantity1
Extended Run Options3 Hours 0 Minutes
Interface Port(s)DB-9 RS-232
RJ-45 10/100 Base-T
Pre-Intalled SmartSlot CardsAP9631
Control panelLED status display with load and battery bar-graphs and On Line
On Battery
Replace Battery
Overload and Bypass Indicators
Audible AlarmAlarm when on battery
distinctive low battery alarm
overlad continuous tone alarm
Emergency Power Off (EPO)Yes
Surge energy rating555J Joules
FilteringFull time multi-pole noise filtering
0.3% IEEE surge let-through
zero clamping response time
meets UL 1449
Maximum Height (in/mm)17.00/432
Maximum Width (in/mm)5.10/130
Maximum Depth (in/mm)26.00/660
Rack Height3U
Net Weight (lb/kg)120.00/54.55
Shipping Weight (lb/kg)140.00/63.64
Shipping Height (in/mm)13.68/347
Shipping Width (in/mm)23.73/603
Shippimg Depth (in/mm)38.60/980
Units per Pallet6.00
Operating Environment32 - 104 °F (0 - 40 °C)
Operating Relative Humidity0 - 95% no %
Operating Elevation0-10000 feet (0-3000 meters)
Storage Temperature5 - 113 °F (-15 - 45 °C)
Storage Relative Humidity0 - 95% no %
Storage Elevation0-50000 feet (0-15000 meters)
Audible noise at 1 meter from surface of unit55.00 dBA
Online Thermal Dissipation1324.00 BTU/hr
Protection ClassIP 20
Regulatory ApprovalsCSA
FCC Part 15 Class A
UL 1778
Contains No SVHCs
Battery DirectiveCompliant
Battery NotesContains Lithium Coin Cell

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ROHS Compliant

Weight: 145 lb

Warranty: 1 Year DiscTech


Condition Levels Explained

These products have had NO problems or failures, they merely have some usage. The product has been professionally returned to excellent condition. These items have been fully tested, formatted (if appropriate) &repackaged. Hard drives are fully vetted for surface defects and wear, only healthy disks are approved for resale to our customers. Please see our refurbishing process for more details. Watch a video about our refurbishing process

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty