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Industrial Rectifier for Telecom Use

This document provides specifications for the PECO 3875B 400 Amp Ferroresonant Rectifier that operates at -48VDC. It has a 220 or 480VAC 3-phase input and provides universal load sharing. It supplies 400A of current to float lead-acid battery strings of 23-24 cells and includes controls like voltage and current meters, a DC output fuse, and switches for float/equalize modes and test modes. The rectifier is CSA certified, complies with Telcordia standards, and has front access in a compact size.

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237 views2 pages

Industrial Rectifier for Telecom Use

This document provides specifications for the PECO 3875B 400 Amp Ferroresonant Rectifier that operates at -48VDC. It has a 220 or 480VAC 3-phase input and provides universal load sharing. It supplies 400A of current to float lead-acid battery strings of 23-24 cells and includes controls like voltage and current meters, a DC output fuse, and switches for float/equalize modes and test modes. The rectifier is CSA certified, complies with Telcordia standards, and has front access in a compact size.

Uploaded by

xray123zzz
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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400 Amp Ferroresonant

Rectifier @ -48VDC

3875B

 220 or 480VAC, 3-phase input

 Universal load sharing

 Test mode

 Front access

 Analog Volt/Amp metering

 DC output fuse

 Complies with Telcorida standards

 CSA certified

PRODUCT DESCRIPTION
The PEC3875B controlled ferroresonant rectifier floats lead-acid battery strings of 23 or 24 cells comprised of either
the wet or VRLA battery design and supplies current to the load. PECO II’s universal load sharing circuit allows the
rectifier to proportionally load share with ALL major brands of control ferro rectifiers making it an excellent choice for
adding to or replacing rectifiers at a site. Local AC On/Off, DC output fuse, Float/Equalize and test switches, voltage
and current meters along with adjustments for float and equalize voltages are provided to facilitate installation, operation
and maintenance. PECO II’s universal controller interface allows the rectifier to work with a variety of conventional
and intelligent interfaces (PECO II, Marconi, Tyco, etc.*). Connectors accept standard interface cables for Tyco CCS,
MCS and Galaxy* (pending) controllers. The reduced overall size of each unit allows more rectifiers to be installed
in a given space, while conduit knockouts located on both the top and front of the unit allow installation flexibility. The
controlled ferroresonant design of this product provides an efficient and cost effective approach to power conversion with
the benefits of enhanced reliability, reduced TIF and RFI, improved power factor, and high immunity to transients.

This rectifier may be used with all makes and models of -48V power plants.

*Trademarks and Company Names are the property of their respective owners.

09/2008
SPECIFICATIONS
3875B INPUT ENVIRONMENTAL
Voltage Range Storage Ambient -40°F to +185°F (-40°C to +85°C)
(220VAC) 187 – 254VAC, 3 phase Operating Ambient +32°F to +122°F (0°C to +50°C)
Voltage Range Humidity < 95% non-condensing
(480VAC) 424 – 508VAC, 3 phase
Heat Dissipation 7500 BTU/hr
Frequency 57 – 63Hz
Current (220VAC) 76A maximum
Current (480VAC) 38A maximum
MECHANICAL
Dimensions,
Fully Equipped 84”H x 15”D x 25.94”W
OUTPUT
400 Amp Ferroresonant Rectifier @ -48VDC

Weight 1450 lbs.


Voltage Range 48 - 57VDC Cooling Convection
Current 400A
Efficiency > 91%
DOCUMENTATION
Product Manual 6424398
NOISE
Voice Band < 38 dBrnC
Wide Band < 200mV peak to peak
Acoustic 60dBa

Indicators, Alarms & Controls
Indicators & Alarms
LED Description Name Color
Input Power On AC ON Green
Output Capacitor Charged CAP CHARGE Red until charged
Equalize Mode Equalize Amber
Test Mode TEST Amber
RFA Alarm CFA/RFA Red
High Voltage Reset Enabled HV Reset Amber
Temporary Release TR Amber

CONTROLs EXTENDED ALARMS


Remote Sense Voltage Control Rectifier Fail Alarm
Output Capacitor Pre-charge Switch Low Output Alarm
Test Mode Switch Power Minor
Internal High Voltage Shutdown
External High Voltage Shutdown
Remote On
Remote Off
Remote Restart
Over Temperature Shutdown
09/2008 Over Temperature Shutdown

1376 SR 598
P.O. Box 910
Galion, OH 44833
800.999.PECO
www.peco2.com

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