Emerson R48-3200, NetSure A50B50, R48-3200e, R48-3500e Technical Specifications
NetSure® A50B50
DC Power Retrofit
DC Power for
Business-Critical Continuity™
Key Features
Increases efficiency from 85%
to >96%; reduces energy
consumption by >11%;
reduces heat loss by >73%
NetSure® reliability improves
mean time between failure
(MTBF)
Constant power limiting
feature increases current
capacity to 73 amps per
rectifier
Plugs right into A50B50
rectifier slot without any
electrical or mechanical
adjustments to existing shelf
or system
Operates with or without
original A50B50 rectifiers in
same system
Enhanced controller features
including single point
adjustment and remote access
via Ethernet
High efficiency eSure™ rectifiers provide dramatic
reductions in energy costs and advanced features
for legacy Lorain® A50B50 based DC power systems.
Product Overview
The NetSure® A50B50 DC Power Retrofit provides a unique solution for maintaining and
upgrading legacy Lorain
designed frames mount directly into existing rectifier slots without the need for electrical or mechanical adjustments. These frames accommodate the R48-3500E and
R48-3200E eSure
Two distinct frames are available. Model A50IFRM accommodates a single rectifier
and controller. Model A50EFRM houses a single rectifier. Each system starts with one
A50IFRM. The A50EFRM provides growth for up to thirty-six rectifiers in a single system.
The NetSure® A50B50 DC Power Retrofit can be used with or without the original
A50B50 rectifiers in the same system. The frames contain the necessary connections
and circuitry to manage the monitoring and alarming of all rectifiers.
The system’s original meter-control-alarm panel can remain in place. Or, if desired,
the NetSure
existing electronics including programmable alarming, customer I/O and local/remote
access over Ethernet.
®
controller can be used instead, providing significant enhancements over
®
DC power systems based on the A50B50 rectifier. Specially
™
high efficiency rectifiers as well as the standard R48-3200 rectifier.
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Application
The NetSure® A50B50 DC Power Retrofit is designed for use in existing Lorain® DC
power Systems containing A150CAB or A200CAB rectifier shelves designed initially to
accommodate A50B50 rectifiers. The NetSure
in conjunction with or in place of A50B50 rectifiers with the following specification
numbers: 486522200, 486523401,
486523403, 486523406, 486524801,
486526401.
®
A50B50 DC Power Retrofit can be used
Additional information
Additional specification, engineering and installation
information may be obtained by
requesting SAG588250400
(system application guide) and
UM588250400 (User Manual).
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NetSure® A50B50
DC Power Retrofit
Technical Specifications
AC Input R48-3200 R48-3200e R48-3500e
Nominal Voltage Single phase 208/240VAC
Operating Voltage Range 176VAC to 275VAC
Frequency 45 Hz to 65 Hz
Power Factor (PF) >0.98 from 50% to 100% load
Total Harmonic Distortion ≤5% from 50% to 100% load
Input Current 16.0A typical, 20.3A maximum 15.2A typical, 19.6A maximum 16.5A typical, 21.4A maximum
Inrush Current Does not exceed 150% of the rated input steady state peak value.
Input Protection
Operating Efficiency 92% peak 96.8% peak 96.7% peak
DC Output
Output Voltage Range -42.0VDC to -58.0VDC
Constant power
limiting operation
Output Current 67A max 73A max
Regulation Steady state output voltage remains within +/-0.25% for any combination of input voltage from 5% to 100% load
Voice Band Noise The voice-frequency noise generated by a rectifier does not exceed 32dBrnC output noise from 10% to 100% load
Wide Band Noise Does not exceed 250 mV peak-to-peak, or 30 mV rms per Telcordia GR-947-CORE
Psophometric Noise Does not exceed 1 mV, 10% to 100% load Does not exceed 2 mV, 10% to 100% load
Current Limiting Protection Current limit adjustable from 5 to 67A Current limit adjustable from 6 to 73A
Over Current Protection Internal fuse
High Voltage Shutdown If rectifier detects over voltage it will turn off. After 5 seconds it will restar t;
Environmental
Temperature
Altitude Up to 6562 ft (2000m) at ftull rated output
Relative Humidity 0 to 95%
Ventilation Front to back wi th speed -controlled fan (field r eplaceable)
Audible Noise The rectifier does not produce sound levels above 53dB(A), measured 0.6m in front of the rectifier, at the same horizontal line
Status / Alarm Indicators and Monitoring
Visual Indicators
Status Settings The controller establishes all rectifier settings.
Rectifier Physical Specifications
Mounting Plug-in installation
Dimensions (H x W x D) 5.20 x 3.36 x 11.3 inches (132 x 85.3 x 287mm)
Weight 7.7 lbs. (3.5kg)
Compliance UL recognized (UL 60950) for USA & Canada, CE marked,
If the input voltage decreases or increases beyond a non-adjustable predetermined value, the rectifier circuitry shuts down,
disabling the output. The rectifier will recover automatically when the AC input is re-established and exceeds 95VAC
(low voltage restart point) or when it decreases to 285VAC (high voltage restart point). Overcurrent is protected by an internal fuse.
3200W maximum from 176VAC to 290VAC at >48VDC output
if it encounters an over voltage within 5 minutes it will turn off and remain off until reset.
-40°F to 113°F (-40°C to 45°C) at full rated output
-40°F to +167°F (-40°C to +75°C) with derating
as the middle of the rectifier at 25°C
Normal operation = Green LED
Alarm = Yellow LED
Rectifier failure alarm = Red LED
Fan failure alarm = Flashing red LED
Reported via CAN bus to system controller.
EN 300 386:2001 class B, FCC par t 15 class B, IEC 60950, EN 60950
3500W maximum from 176VAC to 290VAC
at >48VDC output
Emerson Network Power.
The global leader in enabling
Business-Critical Continuity™.
Emerson Network Power
Energy Systems
4350 Weaver Parkway, Warrenville, IL 60555
Toll Free: 800-800-1280 (USA and Canada)
Telephone: 440-246-6999 Fax: 440-246-4876
Web: EmersonNetworkPower.com/EnergySystems
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AC Power
Connectivity
DC Power
Embedded Computing
© 2011 Emerson Network Power Energy Systems,
North America, Inc. All rights reserved.
®
Emerson
, Emerson Network Power™, Business-Critical
Continuity™, NetSure
Emerson Electric Co. and/or one of its subsidiaries.
Printed in USA
®
, Lorain® and eSure™ are trademarks of
Embedded Power
Infrastructure Management & Monitoring
Outside Plant
Power Switching & Controls
Precision Cooling
Racks & Integrated Cabinets
Services
Surge Protection
127D-NSA50B50 / 0211
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