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Home > Cabinets and Racks > Air Conditioned Cabinets > Liebert® MCR Air Conditioned Server Rack
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Liebert® Foundation MCR 46U Complete w/ AC and 2kVA UPS #MCR-46U-UPS

Handles 5,600 BTU / 1650 Watts


The Foundation Integration System provides comprehensive, adaptive and scaleable network equipment support. As an integration system, Foundation can integrate all Liebert computer support systems in a single package. Foundation is built upon the robust and flexible Foundation Enclosure and can be scaled up to a Foundation-MCR (Mini Computer Room) delivering full environmental, power and monitoring support. The adaptive Foundation Enclosure features adjustable position mounting rails, simple cable access and management, and a broad array of enhancements to meet specific needs. By adding any combination of support systems Foundation can deliver comprehensive protection to computer systems; support systems include: Environmental systems, fans to Uninterruptible Air Supply (air conditioning with back-up cooling); UPS systems: Line Interactive to On-Line technologies; Monitoring systems: Alarms to SiteNet Integrator and Load Control Module. Foundation flexibility and scalability extends into the future as any system can be field upgraded, even starting from a basic Foundation open rack, with Upgrade Packages to meet ever changing computer system requirements.

Note: The Liebert MCR is configured with 2 power cords. The air conditioner utilizes a NEMA 5-15 plug (15 amp circuit) and the GXT3 2.0 kVA UPS utilizes a NEMA 5-20 plug (20 amp circuit). Each is to run on dedicated circuits.

Can't I just buy a cabinet and put in an air conditioner?

The Liebert Foundation MCR is engineered and meets Nationally Recognized Testing Laboratory (NRTL) standards as a complete solution. There is no need to purchase and install separate add-on components. The Liebert Foundation MCR is a self-contained system ready to go right from the start with components that are specifically designed to work together.

Isn't it going to get really hot inside that cabinet?

The Liebert Foundation MCR includes computer-grade high availability precision cooling plus an optional backup cooling module that removes heat in the event of a power outage.

What if we decide to move our offices?

The Liebert Foundation MCR is mounted on wheels so it is easy to install and relocate. Just position the unit and hook it up for installation. It's just as easy to relocate as needs or room layouts change.

What if we don't have a special room for our computer system?

The Liebert Foundation MCR accommodates spaces not designed for cooling. It fits through standard-sized doorways and is air-cooled so it can operate without access to chilled water.

Note: Available Rack Mounting Space with Internal Primary Cooling Module is: 39 (U )

Usable Space: 42U

Two Year Factory Warranty (upgradable to 3 or 5 years, parts only)

For more information call (800)-686-5312 or email: Sales@MainlineComputer.com

A/C Cooling:


  • Unit dimensions: 25 in. W x 38 in. x 85.5 in. H
  • NEMA12 Sealed
  • Heavy duty 12-gauge steel construction, painted black. Includes leveling feet & grounding lug.
  • Internal Full height, adjustable position, EIA hole/spacing.
  • Front / Rear Rails - 2 sets (left / right) mounting rails Square Hole for cage nuts
  • ECM Self contained primary air conditioner. Low noise operation, automatic condensate reevaporation system, hot gas by-pass, “Green" R-407C re
  • ECM2000LR 60 Hz - Load matched to 2000VA UPS
  • BCM Self-contained back-up cooling system. Low noise operation, mounted on BCM rear door, High Temp. alarm activated
  • BCM 2000L 60 Hz - Load matched to 2000VA UPS
  • Plexiglas Front Door - Sheetmetal frame construction with smoked acrylic viewing area. Multi-point latching & key lock, removable & reversibl
  • BCM Rear Door - Sheetmetal construction. Multi-point latching & key lock, removable & reversible.
  • Side Panels - Sheetmetal construction. Externally removable with internal security provisions
  • Insulated
  • Door and Side Panel Color - Z-0350.
  • One (1) 10 NEMA 5-15 output receptacles; 15A/120VAC/15' cord/ Non Locking NEMA input plug
  • Casters - Non-locking, rated 1000 lb. total
  • High Temperature Alarm - Audible alarm, Controller for BCM option
  • 2kVA UPS is Included
  • Accessories
    Liebert Intellislot Relay Interface Card
    Liebert Intellislot Relay Interface Card
    The Intellislot Relay Interface Card supports UPS systems equipped with the Liebert Intellislot communication port and is user-installable and hot-swappable.

    ECM Heat Rejection Duct Kit-60 HZ
    ECM Heat Rejection Duct Kit-60 HZ
    Ship Loose-Field Installed

    TMNET-Cabinet Environmental Monitor
    TMNET-Cabinet Environmental Monitor
    Temperator Monitor w/ Network communication and trending

    Warranty Info

    The Foundation frame / enclosure is warranted against defects in materials and workmanship for two (2) years parts, from date of shipment. Optional Foundation EX Expansion Systems, UPStation GXT2U, PowerSure PSI UPS, SiteNet Integrator and/or Load Control Module are warranted against defects for two (2) years parts, from date of shipment. Optional ECM and/or BCM are warranted against defects for two (2) years parts, 90 days labor, from date of shipment. For the complete warranty terms and description, refer to the separate warranty statement at www.liebert.com, Enclosure Systems.

    Optional extended parts warranty is available at the time of purchase for the ECM and/or BCM via optional Foundation ECM and/or BCM Extended Warranties. The Extended Warranty option shall extend the standard ECM and/or BCM warranty by either 1 or 3 years, for a total warranty period of either 3 or 5 years. Refer to separate warranty statements for details.

    Optional Liebert UPStation GXT23, PowerSure PSI UPS, or Liebert SiteNet Integrator and/or Load Control Module is offered at the time of purchase with separate extended warranty options of 1 or 3 years. Refer to separate warranty statements for details.

    Liebert offers a Start-up Service for Foundation Mini Computer Room products to provide a review of the installation and an overview of the product operation. Start-up includes one site trip within the United States and Canada by a factory-trained serviceman after installation of the Foundation MCR and associated Heat Rejection options (if included). Call Mainline Computer Products for details and pricing for this optional Start Up Service. 1-800-686-5312


    All pricing subject to change. For all prices, products and offers, Mainline Computer Products reserves the right to make adjustments due to changing market conditions, product discontinuation, manufacturer price changes, errors in advertisements and other extenuating circumstances.

    High volume bids are welcome. Call (800)-686-5312, Ext. #228 or e-mail: Sales@mldelivers.com

    While Mainline Computer Products Inc. makes reasonable efforts to include accurate and up-to-date information on the site, Mainline makes no warranties or representations as to the site's accuracy. Mainline assumes no liability or responsibility for any errors or omissions in the content on the Site.

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