Zenith™ Series MDU & RDUCritical Power Distribution Units

2

Touching all Areas of the Energy IndustryGE’s diverse portfolio of products and services is helping customers solve problems every day. We touch all areas of the energy industry including energy, electrical management, smart grid modernization, coal, oil, gas, nuclear energy, water, wind, solar and biogas.

Providing Reliable Power to your Mission-Critical Business NeedsWith a comprehensive energy management portfolio, GE is uniquely qualified to provide comprehensive datacenter, commercial and industrial infrastructure solutions from its’ Industrial Solutions and Critical Power businesses. Due to the inherent high-efficiencies offered with GE electrical distribution equipment and GE UPS systems, measurement of PUE can be maximized by the integrated use of these solutions.

Numerous critical power products and services can be utilized to deliver reliable datacenter infrastructure support, solid project management and outstanding site service solutions.

GEIndustrial.com/CriticalPower provides customers with access to the latest product and solutions news, downloadable resources and interactive digital tools.

• Access to the entire portfolio of product solutions: - Brochures - Manuals - White Papers - Software - Drawings - Videos

• Multi-language support in Chinese and Spanish

• Industry solution offerings & advanced navigation

Over 15,000 downloadable resources for our customers

3

End-to-End GE Solutions for Datacenter Power Needs

GE MV Main Switchgear

GE Utility Service Transformer

Standby Generator

Standby Generator

GE Generator Paralleling

Switchboard

GE LV Main Switchgear

GE Distributed Power Busway

Critical Powervia Overhead

GE Critical Power Distribution ProductsUsing Efficient and Flexible Power Distribution to the Critical Load

GE LV Switchboard

GE UPS System

GE Surge Protection

GE Monitored Distribution Unit

GE Monitored Distribution Unit

GE Remote Distribution Unit

GE Remote Distribution Unit

GE ATS

Critical Powervia Raised Floor

IT Critical Load Servers

4

Series MDU Monitored Distribution UnitModel MDU-CL (Classic Design)

Protect Your Computers GE’s Monitored Distribution Unit protects your critical computer equipment from electrical noise and spikes, plus acts as a single point reference ground. Each unit can be individually configured to meet your needs for isolation, voltage transformation, harmonic reduction and voltage regulation with virtually limitless distribution options. Built-in system monitoring and diagnostics facilitate load balancing and warn of potential threats to your critical equipment.

Every MDU goes through some of the toughest testing in the industry. GE’s comprehensive quality assurance program, with 100% unit inspection and testing, is just one way GE assures that each unit will perform flawlessly day after day.

Win the Race for Space We designed our MDU to grow with your facility. “Sidecars” can be added to the standard cabinet to give you up to six 42-circuit panels or combinations of panels and sub-feed breakers. Up to 252 separate circuits can be installed in a single unit. These circuits can be monitored by one of GE’s Branch Circuit Monitoring Systems (BCMS) as a factory installed component.

Branch Circuit MonitoringFor complete critical load management, add a Branch Circuit Monitoring System (BCMS) to the MDU panelboards. This monitoring provides the user with branch circuit knowledge of current readings – average, min/max and alarm settings – all displayed in the Intelligent Monitor.

Top or Bottom CablingUse the MDU with bottom cable entry and exit when installing an MDU on a computer room raised access floor. Or use the MDU with top cable entry and exit when installing on a concrete floor and using overhead busway systems.

Modular Design GE’s modular design results in higher quality due to the standardized pre-testing of all modules, which allows GE to meet the tight project deadlines that datacenters demand.

Service and Support After your equipment has been installed, call on the GE service team for 24/7 support. Our experienced sales and service team will stay with you from the design of your system through the life of your datacenter.

Single Line Diagram - Model MDU-CLOutput GE Panelboards and/or Sub-feed Circuit Breakers*This Classic Design MDU is typically installed on the datacenter computer room floor.

* Standard unit contains two 42 circuit GE panelboards. Additional panelboards can be added via use of side cabinets.

5

Monitoring• Standard Monitor: Intelligent Monitor

(for input and output monitoring)

• Options: BMCS

• Communications: Serial RS-485 Modbus; optional SNMP communications

• M4 monitor available

• Thermal: Dual transformer thermal switches

Transient Suppression Network (TSN) (Optional) An integrated system engineered to meet ANSI/IEEE category C standards for transient voltages and surge currents.

Lightning Arrestor/Surge Suppressor (Optional) Protects the insulation of the system magnetics.

Distribution Panelboards/ Sub-Feed Breakers (Optional) Customized distribution configurations meet the demands of any facility. Front-facing or side-facing side cars for CB distribution in excess of 84 poles.

Step-Down Transformers• TP-1, K20 high-efficiency transformers

are standard

• Copper wound with Class R insulation

• Low-inrush versions available

Ratings• kVA Ratings: 50-300 kVA

• Input: 3-phase, 3 wire plus ground

• Input Voltage: 600, 575, 480, 208 (60 Hz) 575, 415/240, 380/220 (50 Hz)

• Output: 3-phase, 4 wire plus ground

• Output Voltage: 600, 575, 484, 208 (60 Hz) 575, 415/240, 380/220 (50 Hz)

Enclosure• NEMA 1 enclosure with removable

front side & rear panels

• Optional NEMA 3R enclosure

• Removable front, side and rear panels

• Integrated two-point latch and vision panels

• Flush-mounted door handle with integral locks

• Advanced door catch assures positive closure

Operating Conditions• Operating Temperature: ambient 0°C to +40°C

• Storage Temperature: ambient -10°C to +40°C

• 50 Hz Operating Range: 47-53 Hz

• 60 Hz Operating Range: 57-63 Hz

Features• GE panelboards and circuit breakers

• Copper wound construction – better conducting and more resilient than aluminum

• Dual electrostatic shield – attenuates high frequency noise

• Oversized neutral conductor

• Common mode noise protection

• Transverse mode noise protection

• Accurate kW, power factor and THD measurement

• True RMS metering

• Operating Efficiency: 98% typical

• Listed to UL 1950, CSA Certified

• Modbus RTU communications

• BCMS available as factory installed option

Series MDU Monitored Distribution UnitModel MDU-CL (Classic Design)

Features & Options

Door-in-Door Construction – Model MDU-CL MDU-CL Dimensions

kVA Height Width Depth

50-150 74.75” 36.50” 32.75”

200-300 74.75” 36.50” 39.00”

• Side-facing side car adds 9” width

• Front-facing side car adds 21” width

• Consult factory for system weights

6

Branch Circuit Monitoring SystemOptionally Available for Series MDU & RDU Products

GE’s Branch Circuit Monitoring System (BCMS) measures and displays the current and/or voltage of each individual power panelboard circuit. BCMS settings can be custom configured within a customer’s power management system to create alarms for current and/or voltage thresholds. BCMS Basic or BCMS Plus is available, depending on the level of monitoring desired.

FEATURE BCMS BASIC BCMS PLUS

Intelligent Monitor Display (optional) Monitoring • •Modbus RTU • •SNMP (optional) • •Individual Current Per Branch Circuit • •Average Current • •Minimum/Maximum Current • •Alarm Setting and Summary Alarm via ModBus • •Summation of Branch Circuits Per Panelboard •Current Demand •kVA, kW, Power Factor and Frequency •Reactive Power (kVAR) •Over/Under Voltage •Phase, Neutral and Ground Input Current •Panel Phase Loss •Voltage: L-L, L-N •Zero Current Alarm •Voltage THD •Energy Consumption (kWhr) •Percent Load •

Standard on Series MDU Optional on Series RDU Intelligent Monitoring gives real-time control of actual loads down to the individual breaker level. This important decision-making tool integrates the BCMS and Intelligent Monitoring System for control of system-wide performance and breaker power levels along with current and voltage data. This means improved, more timely decisions can be made based on real-time load and capacity data, all in one interactive and monitoring package.

Intelligent Monitor Can Display BCMS Readings

A

B B

A BCMS Data Acquisition Board

B BCMS Branch Circuit 21-Pole C/T Strip

7

Series MDU Monitored Distribution UnitModel MDU-HP (High Power Design)

The Series MDU High-Power Design provides the highest available power density. This system integrates the Intelligent Monitoring with the Branch Circuit Monitoring System and allows precise load control and management. Together these features result in:

• Less Floor Space

• Lower Energy Costs

• Higher Density Power

• Better Reliability

Space Savings The Series MDU-HP uses a high-power, high-efficiency transformer in place of the many smaller, lower-power transformers found on legacy PDUs. Use of the Series MDU-HP often results in a space savings of 20-50%.

Lower Energy Costs

Market-leading, ultra-high efficiency, eco-friendly transformer yields significant energy savings, substantially lowering datacenter operating costs.

Scalability The Series MDU-HP is the smart way to add scalability to your critical environment. The internal distribution system allows the datacenter manager to easily add distribution as servers are added to the site, resulting in a better return on investment.

Intelligent MonitoringIntelligent Monitoring increases the visibility of the actual loads on the raised floor, which gives datacenter managers better decision making tools at their fingertips. The monitor provides the ability to make better decisions based upon real-time reporting of load/capacity data.

Customized Solutions for Your OperationVersatile product, coupled with advanced engineering expertise, delivers the best performing platform for your critical application.

Features• Central welded bus on the input and the output allows true

front access and simplifies ongoing maintenance

• Ultra-high efficiency datacenter grade transformer for energy cost savings

• Reduces power distribution footprint by up to 50%

• Highest available power density

• Available per circuit output monitoring option optimizes current utilization

• Optional 100% rated circuit electronic trip breakers for precision control

• Customizable to meet specific requirements

• UL listed

Model MDU-HP Step Down Transformer

Energy Saving Transformer Technology

Designed to optimize efficiency at specified load level (efficiencies as high as 99% at 500 kVA).

• Optimized for non-linear/computer loads. Designed to minimize stray losses (component of magnetic losses that increases dramatically with non-linear profile of the load). Result can be upwards of 1-3% higher efficiency than standard transformers.

• Results in less heat rejection. Less cooling required results in lower energy costs.

8

Electrical Specifications• Transformer kVA: 225, 300, 400, 500, 625, 750 kVA

• Input Voltage: 480 VAC, 600 VAC 3-phase, 3 wire plus ground, 60Hz

• Output Voltage: 208-120 VAC (240 VAC available) 3-phase, 4 wire plus ground, 60Hz

• Output GE Circuit Breakers: 225 AF / 100-225 AT (x 14 max.) 400 AF / 400 AT (x 8 max.) 600 AF / 500-600 AT (x 8 max.)

• Neutral Bus: 200% rated

• Transformer Type: Datacenter Grade; Delta-Wye isolation

• Transformer Specification: K-rated; 150°C rise; copper wound (AI windings available); NEMA TP-1 efficiency

• Input Current (Amps @ 480 VAC): 150 kVA (181); 225 kVA (217); 300 kVA (361); 400 kVA (481); 500 kVA (602); 625 kVA (753); 750 kVA (903)

Environmental Specifications• Operating Temp: 0°C to 40°C up to 10,000 feet without de-rating

Physical Specifications• Input/Output Bussing: Configurable for top or bottom

• Access: Front only (some systems may require side or rear access depending on final installation)

System Weight

225 kVA = 2100 lbs 500 kVA = 3900 lbs

300 kVA = 2490 lbs 625 kVA = 3900 lbs

400 kVA = 2900 lbs 750 kVA = 4690 lbs

Monitoring• Standard Monitor: Intelligent monitor (input and output monitoring)

• Options: Per circuit output monitoring

• Communications: Serial RS-485 Modbus; Optional SNMP communications

• Thermal: Dual transformer thermal switches

Options• SPD (Surge Protective Device)

• Dual input with interlocks

• Low inrush transformer

• 100% rated circuit breakers

• Optional monitor

• IR transparent scan windows

• Shunt trip per output circuit breaker

• Integrated BCMS Monitoring for current and voltage

Cabinet Dimensions

kVA Height Width Depth

225/300 78” 42” 33”

400/500 81” 60” 48”

625/750 82” 66” 42”

Single Line Diagram - Model MDU-HP

Series MDU Monitored Distribution UnitModel MDU-HP (High Power Design)

Features & Options

GE Sub-feed CBs - 225, 400 or 600AThis high-power MDU is typically installed in the building electric room.

Monitoring provided for:

• Input CB

• All output CBs

• Alerts the operator if sum of branch currents nears rating of input main CB

9

Series RDU Remote Distribution Units

Win the Race for Space & Power The drive for more power in less space at the server level continues. GE’s Series RDU complements this change by offering the most options available in this free-standing 2’ x 2’ distribution or server-sized enclosure. GE has the most comprehensive line up of RDU in the datacenter business. Although your RDU may still be able to handle the power demands of your growing facility, it may not have room for expansion. GE’s RDU helps you win “the race for space & power” by providing the added pole space in a variety of power set-ups to meet your distribution needs in a small footprint.

Our RDU allows you to effectively use all of your existing capacity before investing in additional distribution. The RDU can use multiple input sources, up to 168 breakers, and Branch Circuit Monitoring with local monitoring in the 2’ x 2’ floor tile. The RDU is fed by any standard sub-feed circuit breaker of an MPU or 208V distribution board. GE also offers the choice of Mission-Critical Dual Source RDU.

Simplified Expansion with Customized Options• Reduces the length of cable runs between your RDU and the

individual loads

• Optimizes usable floor space

• Simplifies server consolidation plans

• Meets the growth demands of dual cord equipment

• Retrofits to any existing distribution system

• Minimizes your investment risk today by allowing for incremental expansion of your future facility

• Unobstructed wiring access for ease of Installation

Flexible Packaging Designed in an aesthetically pleasing cabinet to match the high-tech look of today’s computer centers, the RDU’s flexible configuration options allow it to grow with your facility. The RDU can function as a stand alone device or as part of an extensive distribution system. You can choose a single input device or dual power feeds to satisfy system redundancy and maintenance requirements. All RDU designs can be packaged to allow for system expansion without interruption to your loads. Each unit can be equipped with any custom monitoring package you require for your system.

RDU Intelligent MonitoringAdd an optional Intelligent Monitor to see down to the branch circuit level on all panelboards. The monitor increases the visibility of the actual loads on the raised floor, which gives the datacenter manager a better decision-making tool that covers system-wide performance, individual output breakers power levels and branch circuit monitoring (current and voltage). The Intelligent Monitor gives you the ability to make better decisions based upon real time reporting of load/capacity data. By adding the monitor to your RDU, you can view linked devices and keep better control of the datacenter floor loads.

10

Model RDU–CL (Classic Design)• 2’ x 2’ footprint cabinet (83” high)

• Freestanding enclosure

• Removable top, side and rear panels

• Full front inner hinged panelboard cover

• 208/120 VAC - 60 Hz or 50 Hz available

• 1, 2 or 4 mains, 225 or 400A rated

• GE Mains can be CB or MCS type

• 400A system also available

• GE 42 pole distribution panelboards

• Panelboard vision panels

• Listed to UL standards

• Oversized neutral for non-linear loads

• Single-point grounding

• Configurable for top or bottom entry

• Compression connections on all GE panelboards

• Hinged side and rear panels

• Flush-mounted door handle with integral keyed locks

• Increased wiring space

• “Door-in-door” handle on dead front

Model RDU-MC (Mission Critical Design)• 2’ x 2’ footprint cabinet (83” high)

• Enhanced security

• Designed to provide an alternate feed to loads

• MLO (main lugs only) GE panelboards

• 225 or 400A

• Two 225A GE mission critical Main CBs

• Kirk™ key interlocks

• Solenoid key release

• Sync check relay

• Can be switched between two sources in a make-before-break configuration without interrupting the load

• Isolated and equipment grounds

• Switching neutral contactor for separately derived loads

Centralized MDU with RDU Remote Distribution Advantages

Series RDU Remote Distribution Units

RDU-MC Mission Critical Design Breaker Interlocks

RDU-CL Classic Design

• Condenses overall power distribution system footprint

• Uses a high-efficiency transformer

• Extra CBs simplifies future expansion using RDUs

• Welded bus design simplifies ongoing maintenance and provides front access design

• Available as manual dual unit for “A” side / “B” side bus designs

• Often more cost effective than distributed transformers

Branch Circuit Monitoring System (BCMS)• Available on all RDU designs

• Optional Intelligent Monitor display

• Retrofit BCMS kits available for existing PDUs or panelboards

11

Series RDU Remote Distribution Units

Model RDU-SC (Server Cabinet Design)• 24” w x 82” h (24” or 42” dp)

• Front only or front and rear in-line dual 42 pole GE panelboards with bolt-on circuit breakers

• Single or dual feed via easy to access copper bus bar inputs

• 225A GE Main CB per panelboard or per two panelboards

• 400A system also available

• Hinged dead front doors with ¼ turn captive hardware and quick removal clip

• Lockable main door with easy view of all circuits (acrylic or solid finish)

• Branch circuit monitoring available

• Large system status display

• Top or bottom entry, ultra spacious conduit access area with ¼ turn captive hardware

• Easy-access solid copper 200% rated bus bar neutral terminal block

• Standard ground bus and optional isolated ground bus

• Solid copper input bus bars

• Monitoring package including BMCS in single monitor available

Model RDU–WM (Wall Mount Design)• Wall mount design

• One or two GE Panelboards; One or two GE Main CBs

• 225 or 400A GE Mains (CB or MCS)

• 9” dp x 26” w x 80.5” h

• Space saver version (No BMCS allowed) 9.5” dp x 26” w x 66.5” h

• Full front inner hinged panelboard cover

• 208/120 VAC - 60 Hz or 50 Hz available

• Panelboard vision panels

• Listed to UL standards

• Oversized neutral for non-linear loads

• Single-point grounding

• Configurable for top or bottom entry

• Compression connections on all GE panelboards

• Flush-mounted door handle with integral keyed locks

• Increased wiring space

• “Door-in-door” handle on dead front

Series MDU Monitored Distribution Unit

Series DPB Distributed Power Busway

Series RDU Remote Distribution Units

Sub-feed breakers in MDU can distribute power to RDUs or DPB Busway end tap boxes

RDU-SC Server Cabinet Design

© 2013 General Electric Company. GE, the GE Monogram, imagination at work, Zenith and all other trademarks, registered trademarks and service marks, unless otherwise noted, are owned or licensed by the

General Electric Company or its subsidiaries. The contents of this document are the property of General Electric Company. No part of this work may be reproduced or transmitted in any form or by any means,

except as permitted in written license agreement with General Electric Company. The information contained in this document is subject to change without notice.

Customer Service Support

Toll-Free: +1 800 637 1738

US-Based Customer Service

Answered Live 24/7

GEIndustrial.com/CriticalPower

dea-569, Rev. 2/13