DC Power for Business-Critical Continuity™ ® NetSure A50B50 DC Power Retrofit Key Features ™ High efficiency eSure rectifiers provide dramatic Increases efficiency from 85% reductions in energy costs and advanced features to >96%; reduces energy ® consumption by >11%; for legacy Lorain A50B50 based DC power systems. reduces heat loss by >73% ® NetSure reliability improves Product Overview mean time between failure ® (MTBF) The NetSure A50B50 DC Power Retrofit provides a unique solution for maintaining and ® upgrading legacy Lorain DC power systems based on the A50B50 rectifier. Specially Constant power limiting designed frames mount directly into existing rectifier slots without the need for elec- feature increases current trical or mechanical adjustments. These frames accommodate the R48-3500E and capacity to 73 amps per ™ R48-3200E eSure high efficiency rectifiers as well as the standard R48-3200 rectifier. rectifier Plugs right into A50B50 Two distinct frames are available. Model A50IFRM accommodates a single rectifier rectifier slot without any and controller. Model A50EFRM houses a single rectifier. Each system starts with one electrical or mechanical A50IFRM. The A50EFRM provides growth for up to thirty-six rectifiers in a single system. adjustments to existing shelf ® or 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 Operates with or without and circuitry to manage the monitoring and alarming of all rectifiers. original A50B50 rectifiers in same system The system’s original meter-control-alarm panel can remain in place. Or, if desired, ® Enhanced controller features the NetSure controller can be used instead, providing significant enhancements over including single point existing electronics including programmable alarming, customer I/O and local/remote adjustment and remote access access over Ethernet. via Ethernet 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 A50B50 DC Power Retrofit can be used in conjunction with or in place of A50B50 rectifiers with the following specification numbers: 486522200, 486523401, 486523403, 486523406, 486524801, 486526401. Additional information Additional specification, engi- neering and installation information may be obtained by requesting SAG588250400 (system application guide) and UM588250400 (User Manual). 1 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 3500W maximum from 176VAC to 290VAC 3200W maximum from 176VAC to 290VAC at >48VDC output limiting operation at >48VDC output 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 restart; if it encounters an over voltage within 5 minutes it will turn off and remain off until reset. Environmental -40°F to 113°F (-40°C to 45°C) at full rated output Temperature -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 AC Power Embedded Power Precision Cooling Emerson Network Power. Connectivity Infrastructure Management & Monitoring Racks & Integrated Cabinets The global leader in enabling ™ Business-Critical Continuity . DC Power Outside Plant Services Embedded Computing Power Switching & Controls Surge Protection Emerson Network Power © 2011 Emerson Network Power Energy Systems, Energy Systems North America, Inc. All rights reserved. 4350 Weaver Parkway, Warrenville, IL 60555 ® ™ Emerson , Emerson Network Power , Business-Critical Toll Free: 800-800-1280 (USA and Canada) ® ® ™ Continuity™, NetSure , Lorain and eSure are trademarks of Telephone: 440-246-6999 Fax: 440-246-4876 Emerson Electric Co. and/or one of its subsidiaries. Web: EmersonNetworkPower.com/EnergySystems Printed in USA 2 127D-NSA50B50 / 0211