Features 2800W internally fan cooled

AC/DC rectifier module

91% efficiency, including series

output diode

High power density 7.8W/in3,

475mW/cm3

Comprehensive alarms and

signals package

Acoustic noise control

-40ºC to +65ºC operation

Field replaceable dust filter option

Hot-pluggable

Unlimited parallel operation

with active current share, to form

larger DC systems

Typical Applications PSTN, central office

Network datacom

Distributed power systems

N+1 redundant power systems

Mobile base stations

PABX

Telecom hotels

WarrantyThe MRF2800 is under warranty

against faulty manufacture and

faulty components for a period of

two years from the date of delivery.

Please refer to conditions of sale

for full details. We reserve the right

to amend specifications without

prior notification.

DC Series MRF28002800W telecom rectifiers for network, datacom, PSTN,central office, and distributed power applications.

The new MRF2800 Series rectifiers

from APC offer the latest in high

power density technology for critical,

fault tolerant applications. The hot-

pluggable MRF2800 delivers up to

2800 Watts of output power in a 65˚C

ambient temperature. The rectifier's

fan management system auto-

matically adjusts the fan speed to

suit load and ambient temperature.

Input current harmonic distortion is

minimized by the rectifier's active

power factor correction.

Four MRF2800 rectifiers can be

inserted into a 4U high, 23" chassis,

to produce a current of 200A for 48V,

or 400A for 24V systems. Up to

2100A at 54V can be configured in a

single 42U x 19" cabinet using

multiple 3U shelves.

APC offers a wide range of systems

and accessories which utilize the

MRF2800 to provide complete DC

power solutions.

DC Series MX28B1200 system(Photo shows 2 x 1200A DC systems with fuse distribution cabinet)

Input Specifications Minimum Typical Maximum

Voltage Range, VIN Single phase TN-S Operating 176Vac 230Vac 264Vac(as defined by IEC 364) Absolute maximum 300Vac

Frequency 45Hz 66Hz

R.M.S. Current Maximum power output 230Vac input 13.9A176Vac input 16.3A

Peak Inrush Current 264Vac input 19.5A230Vac input 13.0A

Power 2800W output power 3,140WMaximum load (current limit) 3,400W

Apparent Power Factor 98% 99%

Efficiency VIN=230Vac, POUT=2800W 54V 90% 91%Includes integral series output diode 27V 88% 89%

Harmonic Distortion Units comply with the requirementsof EN61000-3-2 3% 10%thd

Turn On Voltage 165Vac 172Vac 176Vac

Turn Off Voltage 145Vac 152Vac 156Vac

Fusing Internally fitted fuses in live and neutral lines 20AT

54V Output Specifications (For Additional Data, See General Output Specifications, p.3) Minimum Typical Maximum

Factory Set Voltage, VOUT 54.4V 54.5V 54.6V

Adjustment Range For more details see “front panel features” section (p.7) 47.8V 58.0V

Maximum terminal voltage 59.0V

Current, IMAX Continuous <65°C ambient. VOUT =54.5V, VIN >198Vac 50.0A

Current Limit Rectifier automatically reduces its current limit set point with changes in ambient temperature, input voltage and output voltage. Current limit characteristics are shown infigures 1 and 2, and table 1 (p.3).

Output Short Circuit See figures 1 and 2 below

Power, PMAX Continuous VIN>198Vac 2,800W

Load Regulation Load change from 0 to IMAX 75mV

Line Regulation Input voltage change over the operating range 75mV

Combined Regulation A combination of load change from 0 to 100% and input 100mVvoltage variation over the operating range

Dynamic Regulation A step change in output current from 10% to 90% of full load ±1VMaximum Deviation

Recovery To within 500mV of final value 2ms

Hold up time VOUT 54.5V dropped to 54.2V, 220Vac input, 50A output 10ms 16msVOUT 54.5V dropped to 40V, 220Vac input, 50A output 32ms

Output Overvoltage 59.0V 59.5V 59.9V

Parallel Voltage Maximum allowable voltage applied to output terminals 80V

MRF2800 Series Standard Input Specification

54V Output Specifications

2 For more details on all APC products go to www.apc.com

Input Specifications Minimum Typical Maximum

Voltage Range, VIN Single phase TN-S Operating 176Vac 277Vac 293Vac(as defined by IEC 364) Absolute maximum 305Vac

Frequency 45Hz 66Hz

R.M.S. Current Maximum power output 277Vac input 14.2A176Vac input 16.0A

Peak Inrush Current 293Vac input 16.0A277Vac input 16.0A

Power 2800W output power 2725W 2889WMaximum load (current limit) 50.0A 53.0A

Apparent Power Factor 98% 99%

Efficiency VIN=230Vac, POUT=2800W 54V 90% 91%Includes integral series output diode 27V 88% 89%

Harmonic Distortion Units comply with the requirementsof EN61000-3-2 3% 10%thd

Turn On Voltage 165Vac 176Vac

Turn Off Voltage 150Vac 176Vac

Fusing Internally fitted fuses in live and neutral lines 16AT

MRF28H54BV50 Input Specification (277V model)

Foldback Setting

60

50

40

30

20

10

00 10 20 30 40 50 60

Constant Current Setting

60

50

40

30

20

10

00 10 20 30 40 50 60

Output Current (Amps) Output Current (Amps)

Outp

ut V

olta

ge

Outp

ut V

olta

ge

Operating Conditions Minimum Typical Maximum

Ambient Temperature Cº VIN VOUT -

65 198 54.5 50.0A 52.5A

65 198 59.0 45.0A 47.8A

65 176 54.5 44.3A 47.1A

65 176 59.0 40.7A 43.2A

General Output Specifications 54V and 27V Minimum Typical Maximum

Remote Sense Total lead voltage drop 1V

Start Up Time From application of line input to output voltage 1.0s 1.5s 3.3sachieving regulation

Rise Time Time for VOUT to rise monotonically to its full value 100ms

Reverse Quiescent Current Source = VOUT connected to output of non energized unit 54V 5mA

Reverse Quiescent Current Source = VOUT connected to output of non energized unit 27V 10mA

Temperature Coefficient Temperature range -25°C to +55°C ±0.015%/°C

Noise, Low Frequency Frequency range 10Hz -100kHz 40mV p-p

Noise, Broadband Frequency range 10Hz - 100MHz 15mV rmsIndividual harmonics 2mV peakComplies with requirements of ETS300386-2-3 and BTNR2511

Noise, Psophometric Weighted to C.C.I.T.T. No. 1 0.7mV rmsC message weighted 29dBrnC

Noise, Acoustic Minimized by allowing 100% IMAX 65°C 198 VacIN 54dBAfan speed to vary 100% IMAX 45°C 230 VacIN 47dBAwith load current 75% IMAX 45°C 230 VacIN 45dBAand ambient temperature 50% IMAX 45°C 230 VacIN 42dBA

50% IMAX 25°C 230 VacIN 38dBA

Series Output Diode Units are fitted with a series diode in the positive output

Series Voltage Units connected in series 150V

54V Output Current Limit Characteristics

MRF2800 Series Operating Conditions

General Output Specifications 54V and 27V

(27V not available in high-input version)

3For more details on all APC products go to www.apc.com

Figure 1 Figure 2

Foldback Setting

30

20

10

0

0 10 20 30 40 50 60 70 80 90 100 110

Output Current (Amps)

Outp

ut V

olta

ge

Constant Current Setting

Output Current (Amps)

30

20

10

0

Outp

ut V

olta

ge

0 10 20 30 40 50 60 70 80 90 100 110

27V Output Current Limit Characteristics

4 For more details on all APC products go to www.apc.com

Figure 3 Figure 4

Operating Conditions Minimum Typical Maximum

Ambient Temperature Cº VIN VOUT -

55 198 27.25 100.0A 105.0A

55 198 29.5 90.0A 95.5A

55 176 27.25 88.7A 94.1A

55 176 29.5 81.3A 86.4A

(Table 2) Operating Conditions

Output Specifications 27V Minimum Typical Maximum

Factory Set Voltage, VOUT 27.20V 27.25V 27.30V

Adjustment Range For more details see "front panel features" section (p.7) 23.9V 29.0V

Maximum Terminal Voltage 29.5V

Current, IMAX Continuous <55°C ambient. VOUT=27.25V, VIN>198Vac 100A

Current Limit Rectifier automatically reduces its current limit set point withchanges in ambient temperature, input voltage and outputvoltage. Current limit characteristics are shown in figures3 and 4 and table 2.

Output Short Circuit See figures 3 and 4 (p.4)

Power, PMAX Continuous VIN>198Vac 2,800W

Load Regulation Load change from 0 to IMAX 50mV

Line Regulation Input voltage change over the operating range 50mV

Combined Regulation A combination of load change from 0 to 100% and input 50mVvoltage variation over the operating range

Dynamic Regulation A step change in output current from 10% to 90% of full load ±500mVMaximum Deviation

Recovery To within 250mV of final value 2ms

Hold up time VOUT 27.25V dropped to 27.1V, 220Vac input, 100A output 9ms 14msVOUT 27.25V dropped to 20V, 220Vac input, 100A output 28ms

Output Overvoltage 31.0V 31.5V 32.0V

Parallel Voltage Maximum allowable voltage applied to output terminals 36.0V

Output Specifications 27V

(27V not available in high-input version)

Signals (available on all versions. See Pinout information p. 6) Minimum Typical Maximum

Post Mate Enable (Input) Connect to (-) sense to enable the unit Start-up delay 2sNote: Connection must be made to operate unit

Current Share Accuracy IOUT = IMAX ±10%

Voltage Trim, Scale factor 54V –1.56V/VSee Figures 5 and 6 27V –0.7V/V

Offset Trim port open circuit 5.1VCurrent VTRIM= 2V -97µAReferenced to (-) sense VTRIM = 8V 97µA

Margin Low Reduction in VOUT with margin low pin connected to (+) sense 2.2V 2.25V 2.3VFactory adjustment range 0V 5V

Current Monitor Monitor output (unloaded). Referenced to (-) sense 97mV/A 100mV/A 103mV/AOutput impedance 5.1kΩ

Auxiliary Output Referenced to opto common Voltage 12VCurrent 100mA

Protected against current and thermal overload

Output Healthy Relay Minimum 'healthy' voltage to 54V 38V 40V 43Vand GREEN LED energize relay and LED 27V 19V 20V 22V

Contact voltage rating 50VBreak current rating 1A

Over Temperature Signal Exceeding internal sensor’s upper limit activates opto and LED 120°Cand RED LED Reset occurs once sensor falls below lower limit 110°C

Program Down (Input) 5V applied to program pin 54V 45.6V 45.8V 46.0Vwith respect to opto common 27V 22.8V 22.9V 23.0V

Remote On/Off (Input) Voltage applied to remote on/off pins Voltage to inhibit 5VCurrent to inhibit 10mA

Remote Boost (Input) Voltage applied to remote boost pin Voltage to activate 5Vwith respect to optos common Current to activate 10mA

Open Collector Opto activates (Output voltage LOW) 0.8VOpto-Coupled Signals Opto resets (Output voltage HIGH) 2.5V

VCE withstand 50.0VSink current (Output voltage LOW) 5mAOpto signals referenced to optos common

Opto characteristics common to all of the following signals:

Standby Signal Remote off activates opto and LEDand YELLOW LED

Input Healthy Signal Input voltage rising activates opto and LED 165V 172V 176Vand YELLOW LED Input voltage falling resets opto and LED 145V 152V 156V

Output Healthy Signal Output voltage above limits, but below 54V 38V 40V 43Vand GREEN LED overvoltage trip activates opto and LED 27V 19V 20V 22V

Current Limit Signal Output current demand >IMAX activates See output specificationand RED LED opto and LED

Overvoltage Trip Signal Output voltage rising activates opto and LED 54V 59.0V 59.5V 59.9Vand RED LED 27V 31.0V 31.5V 32.0V

Reset when line input is interruptedor remote on/off is applied

Output Current Healthy Output current demand >15% IMAX 54V 4.6A 8.6Aand GREEN LED activates opto and LED 27V 9.2A 17.2A

Thermal Control Signal Thermal control of current limit activates opto and LEDand YELLOW LED

Fan Fail Signal Fan failure activates signals and LED and Red LED

Boost (Equalized) Use of boost mode activates opto and LEDActive Signal Activated by front panel switch or remote boost signaland YELLOW LED

MRF2800 Series Signals

Output Voltage Programming

5For more details on all APC products go to www.apc.com

54V Output

0 2 4 6 8 10 12

V trim

V ou

t

65

60

55

50

45

Default (54.5V)

27V Output

0 2 4 6 8 10 12

V trim

V ou

t

32

30

28

26

24

22

Default (27.2V)

Figure 5 Figure 6

6 For more details on all APC products go to www.apc.com

Isolation Minimum Typical Maximum

Primary to Ground Test voltage 1500Vac

Secondary to Ground Test voltage 500Vac

Primary to Secondary Test voltage 3000Vac

Ground Leakage Current 240V, 60Hz input 3.5mA

Output to Ground Voltage Working voltage 150Vdc

Signal to Ground Voltage Working voltage 150Vdc

Signal to Output Voltage Working voltage 150Vdc

Environmental Specifications Minimum Typical Maximum

Ambient Temperature (See table on p. 3) Operational -25°C +65°CStarting -40°C +65°CNon-operational -40°C +85°C

Humidity Non-condensing Operational 0% RH 85% RHNon-Operational 0% RH 95% RH

Altitude Operational 0m 3,000m0ft 10,000 ft

Non-Operational 0m 10,000m0ft 30,000 ft

Vibration Compliant with the requirements of BS2011 Test FcDrop and topple - EN60068-2-31 Test EcBump - EN60068-2-47 Test EbTransportation - BS2011 Part 2.1 Test Fc in original packingDrop - EN60068-2-32 Test Ed in original packing

Pollution EN60950 degree 2 i.e. office type environments

MRF2800 Series Environmental Specifications

MRF2800 Series Isolation

Electromagnetic Compatibility

Emission Compliant with EN50081-1(92) with compliance to the following specific conditions:Conducted input 0 – 2kHz EN61000-3-2Conducted input 0.15 – 30MHz EN55022-BRadiated 0.03 – 1GHz EN55022-A at 10mConducted output ETS300386-2-3

Immunity Compliant with EN50082-1(92) with compliance to the following specific conditions:ESD - EN61000-4-2 failure criteria A. 4kV contact.RF Field - EN61000-4-3. 3Vm–1 80% amplitude modulation 0.08 – 1GHz.Fast Transients - EN61000-4-4 failure criteria B. 1kV on ac line, 500V on dc lines.Surge - EN61000-4-5. 2kV line to ground, 1kV line to line on ac input. 500V line to ground and line to line on dc output.Conducted RF - EN61000-4-6. 3Vrms 80% amplitude modulation 0.15 – 80MHz

MRF2800 Series Electromagnetic Compatibility

Approvals and Safety Standards

EN60950 CE marked to the EC low voltage directive

UL1950 CSA NRTL/C approved, file number LR58666

C22.2 #950 CSA NRTL/C approved, file number LR58666

All versions are reliably SELV. For operation above 60V, a non-SELV version must be ordered. Contact APC for details.

This power supply is designed for incorporation within an enclosure. For user safety, the enclosure must protect the user against accidentalcontact with any electrical hazard, associated with the power supply.

Approvals and Safety Standards

Front Panel Features Minimum Typical Maximum

Test Points Output impedence 5.1kΩ Voltage Current 97mV/A 100mV/A 103mV/A

Float/Boost Select Switch selectable higher or lower preset outputvoltage/current limit. Remote boost (input) overrides selection

Float Voltage Adjust 54V 52.0V 58.0V27V 26.0V 29.0V

Boost (Equalized) 54V 53.0V 60.0VVoltage Adjust 27V 26.5V 30.0V

MRF2800 Series Front Panel Features

Signals Pinout Information

7For more details on all APC products go to www.apc.com

Mechanical Specifications MRF28H

External Dimensions 5.0 x 5.5 x 13.0 in. (127.0 x 139.7 x 330.6 mm)

Front Panel Dimensions See mechanical drawing (p.8) 5.2 x 8.7 in. (132.1 x 221 mm)

Weight 11.0 lb. (5.0 kg)

Fixings Units are designed for power shelf mounting

Mounting Orientation See p.8 for mounting options

Ventilation and Cooling Free air flow through the ventilation slots in the front and rear of the unit is required. Units are cooled by integral,customer replaceable fan. Typical full flow 100cfm.

Finish Front panel is finished in grey with grey legend and the body is finished in gold colored chemical etch

Connectors See below

Dust Filter (Optional) Reticulated, open cell polyester based polyurethane foam. See drawing below.

Mechanical Specifications

Pin Function Pin Function

a1 Reserved b1 Reserved

a2 Fan fail b2 Remote boost

a3 Post mate enable b3 Boost (equalize) Active opto

a4 Standby opto b4 Reserved

a5 Program down b5 Reserved

a6 Auxiliary output b6 Current limit program

a7 Reserved b7 Output current healthy opto

a8 Over temperature opto b8 (-) sense

a9 Thermal control opto b9 Voltage trim

a10 Relay normally closed contact b10 Over voltage opto

a11 Relay common b11 Current limit opto

a12 Relay normally open contact b12 Output healthy opto

a13 Current share b13 Input healthy opto

a14 Remote on/off (com) b14 Optos common

a15 Remote on/off (+ve) b15 Current monitor

a16 Margin low b16 (+) sense

The unit requires a link between pin a3 (post mate enable) and pin b8(negative sense) to operate.

Expanded View Showing Dust Filter

Connector details (hot-pluggable connection)

OutputLine Input

Signals

Pin 1a Pin 1b

Rectifier mounted part:Part B 32 Way Harting 09 22 132 6921SiemensV42254-B1300-B320

Customer/Backplatemounted part:SiemensV42254-B2202-B320

Right angle part:SiemensV42254-B2202-Q320Harting09 27 132 6801

Rectifier mounted part:Positronic SK2790

Customer/Backplatemounted part:Positronic SK2791

Right angle part:Positronic SK2287

Customer/Backplatemounted part:Elcon 538 17 001 00(2 per rectifier required)

(2.1

9in.

)

12.7

(4.97 ± 0.008in.)

126.3 ± 0.22.9

39.1

17.8

(0.7

0in.

)

AIRFLOW

(1.2

9in.

)(5

.48

± 0.

016i

n.)

139.

3 ±

0.4

32.7

177.

0 (6

.97i

n.)

(0.06in.)

1.5

(4.9

9 ±

0.00

8in.

)(0

.06i

n.)

1.5

126.

8 ±

0.2

6.5 (0.26in.) DIA. HOLE

(2.60in.)

66.05

132.1 (5.20in.)

8.4

(0.3

3in.

)

(1.69in.)

43.0 222.3 (8.75in.)

(0.5

1in.

)10

1.6

(4.0

0in.

)

(0.11in.)

93.9 (3.69in.)

50.1 (1.97in.)

(1.54in.)

(1.3

75in

.)

55.7

34.9

(0.5

0in.

)

AIRFLOW

(0.06in.)

1.5 328.7 (12.94in.) 4.2 (INPUT)

(0.17in.)

5.0

(0.19in.)

(SIGNALS)

12.8

5

0.5 (0.019in.) PLASTIC SLIDE

0.5 (0.019in.) PLASTIC SLIDE

4 x M4 FIXINGS

(ON REAR FACE)

ACCESS TO MODE SWITCHES

146.8 (5.78in.)

132.

5 (5

.22i

n.)

137.8 (5.43in.)

83.2

(3.2

7in.

)

SOUTHCO ADJUSTABLE GRIP LATCH

PART No. 27-10-501-20

(0.18in.)

(0.68in.)

138.8 ± 0.4

(5.47 ± 0.016in.)17.3

4.5

50.6

(1.9

9in.

)

94.4

(3.7

2in.

)

(1.375in.)(0.48in.)

34.9

(2.17in.)

55.2

12.2

(1.5

6in.

)39

.6

Output

HealthyHealthy

Healthy

OutputOutput

IVIV

0

1

V

I

0

1

+V +I V I+V +I V I

BelowDetailPanelFrontSee

See

PanelDetail

Front

Below

MRF28HXXXH

Detail 1 - See Figure 9(pg. 10)

Dimensions

MRF28HXXXV

Units in mm (inches)

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R

DC Series Rectifier

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Output

Healthy

Healthy

Output

IVIV

0

1

V

I

0

1

Equalize

Boost/

Float

COM

+V

+I

Curr Limit

Thm Cont

I/P OK

O/P OK

O/P Curr

Overvolts

Standby

Overtemp

Fan Fail

Thermal Control

Current Limit

Overtemp

Overvolts

Fan Fail

Standby

Output Current

Input Healthy

Output Healthy

+V +I V I+V +I V I

FloatCOM Equalize

Boost/

B - signals

Front Panel Detail

www.apc.com

R

www.apc.com

R

www.apc.com

R

DC Series

Rectifier Operating Mode Switches

Mode setting switches are accessed through the side face of the rectifier.

Switch Number Switch Set OFF Switch Set ON Standard Setting

1 (+) Sense remote (+) Sense local ON

2 (-) Sense remote (-) Sense local ON

3 Output set 54.5V/27.25V Reduce output by at least 4.2V/2.1VTo offset output voltage adjust range OFF

4 Normal Voltage Regulation Voltage droop regulation OFF

5 Constant current limit Foldback current limit ON

Rectifier Operating Mode Switches

Dimensions

Front Panel Detail

8For more details on all APC products go to www.apc.com

Ordering Information

Part Number Output voltage Boost V

1MRF28H54BH 54.5V 57.6V

1MRF28H54BV 54.5V 57.6V

1MRF28H27BH 27.25V 28.8V

1MRF28H27BV 27.25V 28.8V

1MRF28H54BV50 54.5V 57.6V 277Vac nominal input

Note: All units are factory set to local sense and foldback current limit. 54V units have a margin low voltage of 52.25V. Consult APC for othersettings. 27V units have a margin low voltage of 25.0V. Consult APC for other settings

Accessory Table

Part Number Product

1MKC2801 Connector kit consisting input output and signals connectors

1MKC2802 Connector kit consisting of right angle input, output and signals connectors

1MS28A MS28A, 19" x 4U mounting shelf to accommodate up to 3 MRF28HXXXV units

1MS28B MS28B, 23" x 4U mounting shelf to accommodate up to 4 MRF28HXXXV units

1MS28CT MS28CT, 19" x 3U mounting shelf to accommodate up to 3 MRF28HXXXH units

1MCA28A Input and signal connector PCB assembly

1MAF28 Replacement Dust filter

1MS28CR Copper riser for side access cabling

Accessory Table

Ordering Information

Example: MRF28H54BV

MRF28 HPackagingH- Standard

54NominalOutputVoltage

BSignalsB - Enhanced

VPackage OrientationH- HorizontalV - Vertical

9 For more details on all APC products go to www.apc.com

For more information call:Tel: 800 800 4APC - US & CanadaTel: 401 789 0204 - World wide

APC CorporateAPC North America 132 Fairgrounds Road,West Kingston, RI 02892 USACall: 800 800 4APCFax: 401 789 3710

APC Latin America5301 Blue Lagoon Drive,Miami, FL 3312602892 USACall: 305 266 5005Fax: 305 266 9695

APC EuropeAPC IrelandBallybrit Business Park, Galway,IrelandCall: +35 391 702000Fax: +35 391 756909

APC Asia PacificAPC AustraliaLevel 1, 27 Northpoint, 100 Miller StreetNorth Sydney, NSW2060Call: +61 2 9955 9366Fax: +61 2 9955 2844

Visit: www.apcc.comE-mail: apcinfo@apcc.comWeb Support: support.apcc.comPowerFax™: 800-347-FAXX

©2001. All rights reserved. All APC trademarks are property of American Power Conversion. Other trademarks are property of their respective owners. Specifications are subject to change without notice.. PART# 996-2180B

APC’s quality systemis certified by ISO9002 standards

APC provides complete DC power solutions for today’s mission-critical communications systems.

Today, more companies than ever are moving their

businesses away from traditional methods of marketing and

distribution to a high-powered Internet model. This move

allows companies to reach more customers and increase

the speed of business. The presence of the Internet makes

proper function of networking hardware critical to the

success of these Web-focused companies. Businesses using

access networks or communication systems depend on

power for vital links to the Internet, and turn to APC for

quality solutions.

APC's new line of DC power solutions is designed to enhance

our end-to-end network protection. APC’s DC series product

family will complement our well-established product families,

such as Smart-UPS®, Symmetra®, Matrix-UPS®, Silcon® and

the many other APC power management peripherals.

APC’s line of fully integrated power systems, power racks,

modular power shelves, distribution cabinets, system

monitoring and battery disconnects, provide complete

power management for telecom, datacom and network

applications. These modular systems offer flexibility and

ensure reliability customers demand when deploying

mission-critical communication systems. When entire

access networks or communications systems depend on

having power for vital links to the internet, customers turn

to APC for solutions.

48V DC Wall-MountedPower System

50A 19" Modular DC PowerSubsystem

Modular Power Systemwith Distribution up to 400A

1200-4800A 23" High PowerDC System