30, 50 & 100 amp, -48 VDC Rectifiers Description Key Features ® The Lorain 30, 50 and 100 amp B series and F series rectifiers use controlled ferroresonant    •  30, 50 and 100 amp Models 30, 50 and 100 amp Models 30, 50 and 100 amp Models— 30, 50 and 100 amp Models 30, 50 and 100 amp Models circuitry to provide smooth, regulated output with high operating efficiencies for -48 VDC for a broad range of systems. These rectifiers can be paralleled for added capacity and load sharing to meet applications expansion requirements and extend equipment life. Front to back ventilation eliminates the need for heat baffles, increasing usable equipment rack space.      Internal Battery Eliminator Internal Battery Eliminator Internal Battery Eliminator Internal Battery Eliminator Internal Battery Eliminator Filter Filter Filter—simplifies battery Filter Filter The following standard features ensure long equipment life and simplified rectifier maintenance and replacement operation. Selective high voltage shutdown increases rectifier reliability with a built-in overvoltage circuit which is activated by a predetermined setting. Current walk-in prevents      Front to Rear Ventilation Front to Rear Ventilation Front to Rear Ventilation— Front to Rear Ventilation Front to Rear Ventilation increases usable rack space step loading of the power line and provides smooth start-up. Current limiting protects against overload damage. The B series has remote control capability for float/equalize,      UL Listed UL Listed UL Listed—compliance to UL Listed UL Listed rectifier on-off and restart after high voltage shutdown. local codes These rectifiers also feature an internal battery eliminator filter for direct connection to the load. This allows batteries to be taken off line for maintenance or replacement. A full alarm array includes LED indicators that clearly signal power on, equalize operation, rectifier failure, low current, fuse failure, and alarm cut-off. Output voltage and current is monitored on analog meters. Also included are remote contacts for signaling rectifier failure, fuse alarms, remote control operation, equalize operation, and low current. Application Ideal for a wide range of communication power applications including switch site and remote locations. LLP 4-7 LLP 4-7 LLP 4-7 LLP 4-7 LLP 4-7 30, 50 & 100 amp, -48 VDC Rectifiers Specifications Input for a step load change from 20 to 100% of the full rated load. Voltage: B series - taps for 208 volt (184-220) and 240 volt Recovery to steady-state voltage regulation range does not (212-254) AC; F series - taps for 120 (106-127), 208 (184- exceed 200 ms and all transient behavior disappears within 220) and 240 (212-254) VAC 500 ms. Frequency: 1 phase, 60 Hz (57-63) Filtering: Voice band noise — less than 22dBrnC when tested on Protection: A 2 pole circuit breaker is provided. The batteries rated in ampere-hours at four times the rated recommended input protection at the AC cabinet is: charger output current or 32dBrnC without batteries RL50B50 — 25 amps, time delay Wide band noise — Less than 500 mv peak-to-peak over the RL100B50 — 45 amps, time delay frequency range of 10 Hz to 14 MHz when measured on a RL30F50 — 15 amps, time delay battery rated at four times the rated rectifier output current RL50F50 — 25 amps, time delay RL100F50 — 45 amps, time delay Audible noise — Less than 55dBA at any point 5 feet (152.4cm) from any vertical surface of the rectifier Output Voltage: Protection Float — adjustable over the range of 48.0-58.0 volts, factory Current Limit: Circuit prevents further application of set at 52.08 volts ±0.2% current to the load if output current exceeds a preset value. Equalize — adjustable over the range of 50.0-58.0 volts, Adjustable from 50% to 120% of full load, factory set at factory set at 54.0 volts ±0.2% 110% of full load. End Cell Charging: 58 VDC at rated load at the design center Selective High Voltage Shutdown: If output voltage increases input voltage above a preset high voltage value while the rectifier is delivering greater than 3% of the rated output current, the Initial (Boost) Charging: 60 VDC at design center input high voltage shutdown circuit de-energizes the main voltage at 15% of rated load contactor. If the rectifier is connected in parallel with one or Current: more Model RL rectifiers, only the rectifier causing the high RL50B50 — 50 amps, full load voltage condition will shut down. The high voltage RL100B50 — 100 amps, full load shutdown range is 52.8 to 60.0 volts, factory set at 55.0, +0.0, RL30F50 — 30 amps, full load -0.2 volts. RL50F50 — 50 amps, full load Non-Selective High Voltage Shutdown: If output voltage RL100F50 — 100 amps, full load increases above a second preset high voltage value, the high Regulation: Steady-state ±Ѕ% from no load to full load over voltage shutdown circuit de-energizes the main contactor the specified input voltage, frequency and ambient regardless of whether or not the rectifier is delivering load temperature ranges, within the range of 48.0 to 54.0 VDC. current. The high voltage shutdown range is 54 to 62 volts, factory set at 59.5, ±0.5 volts. Dynamic Response (On Battery): Maximum voltage transient will not exceed ±5% of initial steady-state voltage Remote: A terminal is provided for connection of an external shutdown signal. Application of positive battery will activate the selective high voltage shutdown circuit. LLP 4-8 LLP 4-8 LLP 4-8 LLP 4-8 LLP 4-8 30, 50 & 100 amp, -48 VDC Rectifiers Specifications (continued) Dimensions: Environmental RL50B50 Operational Temperature: 0° C to +50° C (+32° F to +122° F) Height: 10.5" (26.67cm) Storage Temperature: -40° C to +85° C (-40° F to +185° F) Width: 23" (58.42cm) Humidity: 0-95%, non-condensing Depth: 15" (38.1cm) Weight: 172 lbs. (78.02 kgs) Heat Dissipation: All measurements at both taps made at 52.08 VDC, full load. RL100B50 Height: 17.5" (44.45cm) RL50B50— 208 tap, 1075 Btu/hr max.; 240 tap, 1055 Btu/hr Width: 23" (58.42cm) max. Depth: 15" (38.1cm) RL100B50 — 208 tap, 1980 Btu/hr max.; 240 tap, 1962 Btu/hr Weight: 292 lbs. (132.45 kgs) max. RL30F50 — 120V tap, 582 Btu/hr; 208V tap, 586 Btu/hr; RL30F50 240V tap, 575 Btu/hr Height: 10.5" (26.67cm) RL50F50 — 120V tap, 1068 Btu/hr; 208V tap, 1075 Btu/hr; Width: 23" (58.42cm) 240V tap, 1055 Btu/hr Depth: 15" (38.1cm) RL100F50 — 120V tap, 1942 Btu/hr; 208V tap, 1980 Btu/hr; Weight: 127 lbs. (57.61 kgs) 240V tap, 1962 Btu/hr RL50F50 Altitude: Units are capable of operation from sea level Height: 10.5" (26.67cm) (maximum ambient temperature +50° C [+122° F]) to Width: 23" (58.42cm) 10,000' (3,048m) (maximum ambient temperature +40° C Depth: 15" (38.1cm) [+104° F]) Weight: 172 lbs. (78.02 kgs) Note: Only B series has remote control capability RL100F50 Height: 17.5" (44.45cm) Physical Characteristics Width: 23" (58.42cm) Mounting: Designed for front-to-back ventilation to Depth: 15" (38.1cm) facilitate stacking of the rectifiers one on top of the other in a Weight: 292 lbs. (132.45 kgs) 23" (58.42cm) relay rack with 1.75" (4.45cm) multiple mounting holes. Restrictions apply. See the appropriate Power Data sheet for details. LLP 4-9 LLP 4-9 LLP 4-9 LLP 4-9 LLP 4-9 30, 50 & 100 amp, -48 VDC Rectifiers Additional Information For additional specification, engineering and installation information, specify desired rectifier by model and spec number Model RL50B50, spec. number 543202500 Model RL100B50, spec. number 545103200 Model RL30F50, spec. number 541201800 Model RL50F50, spec. number 543103900 Model RL100F50, spec. number 545103300 www www.marconi.com .marconi.com/pow /power er www www www.marconi.com .marconi.com .marconi.com/pow /pow /power er er ® Lorain is a trademark of Marconi Communications Inc Marconi Communications Marconi Communications Marconi Communications Marconi Communications Marconi Communications 1122 F Street © 2000 Marconi Communications Inc. Lorain, OH 44052 Printed in the USA. All rights reserved. Any unauthorized 800-800-1280 reproduction or transmission without the prior consent of LLP 4-10 LLP 4-10 LLP 4-10 LLP 4-10 LLP 4-10 Fax: 440-246-4876 Marconi Communications Inc. is prohibited.