© 2011 Emerson Network Power Energy Systems,
North America, Inc. All rights reserved.
Emerson
®
, Emerson Network Power
™
, Business-Critical
Continuity™, NetSure
®
, Lorain
®
and eSure
™
are trademarks of
Emerson Electric Co. and/or one of its subsidiaries.
Printed in USA
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
2
Emerson Network Power.
The global leader in enabling
Business-Critical Continuity
™
.
AC Power
Connectivity
DC Power
Embedded Computing
Embedded Power
Infrastructure Management & Monitoring
Outside Plant
Power Switching & Controls
Precision Cooling
Racks & Integrated Cabinets
Services
Surge Protection
127D-NSA50B50 / 0211
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
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.
Operating Efficiency
92% peak
96.8% peak
96.7% peak
DC Output
Output Voltage Range
-42.0VDC to -58.0VDC
Constant power
limiting operation
3200W maximum from 176VAC to 290VAC at >48VDC output
3500W maximum from 176VAC to 290VAC
at >48VDC output
Output Current
67A max
73A max
Regulation
Steady state output voltage remains /-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 restart;
if it encounters an over voltage within 5 minutes it will turn off and remain off until reset.
Environmental
Temperature
-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
Altitude
Up to 6562 ft (2000m) at ftull rated output
Relative Humidity
0 to 95%
Ventilation
Front to back with speed-controlled fan (field replaceable)
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
as the middle of the rectifier at 25°C
Status / Alarm Indicators and Monitoring
Visual Indicators
Normal operation = Green LED
Alarm = Yellow LED
Rectifier failure alarm = Red LED
Fan failure alarm = Flashing red LED
Status Settings
The controller establishes all rectifier settings.
Reported via CAN bus to system controller.
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,
EN 300 386:2001 class B, FCC part 15 class B, IEC 60950, EN 60950
