6 & 12 amp, -48 VDC Rectifiers Description Key Features ® The Lorain model A6F50 and A12F50 rectifiers provide -48 VDC, 6 or 12 amp power for a    •  High Frequency High Frequency High Frequency High Frequency High Frequency T T T T Technology echnology echnology— echnology echnology broad range of applications. High frequency design means more power in less space with up to 12 amps of power in quiet operation. Because these units are quiet, they can be installed near the equipment they 5.25" (13.34cm) of vertical power, eliminating long, costly wire runs and inconvenient remote monitoring. Smaller rack space magnetic units reduce space requirements and ease floor loading.      Inaudible Operation Inaudible Operation Inaudible Operation Inaudible Operation Inaudible Operation—installs These standard features assure long equipment life and simplified operation. Paralleling anywhere provides added capacity and load sharing capability. Selective high voltage shutdown      High Operating High Operating High Operating High Operating High Operating increases rectifier reliability and is activated in the event of a failed unit in a paralleled system. Efficiencies Efficiencies Efficiencies—provide long- Efficiencies Efficiencies These rectifiers can be started under low or dead battery conditions. term energy savings LED indicators on the front panel clearly signal power-on status, rectifier failure, high      Lightweight Design Lightweight Design Lightweight Design Lightweight Design Lightweight Design— voltage shutdown, rectifier failure, and fuse alarm conditions. An analog meter is also simplifies installation provided.      UL Listed UL Listed UL Listed—compliance to UL Listed UL Listed Application local codes These units are ideal for microwave sites, remote huts, small remote exchange offices and special service applications with restricted space. Accessories Equalize Charge Timer Panel Manual or automatic timer panels control up to eight rectifiers over a 99 hour adjustment range. 19" (48.26cm) mounting, part number 484383500 23" (58.42cm) mounting, part number 484382500 Low Voltage Disconnect Panel Senses low battery voltage condition and disconnects battery to prevent battery and system damage. 19" (48.26cm) mounting, part number 437711300 23" (58.42cm) mounting, part number 437711800 High/Low Voltage Alarm Circuit Provides one set of form contacts that are field adjustable to meet your requirements, part number 486314400. Heat Baffles It is necessary to allow 3.5" (8.89cm) and a heat baffle between rectifiers and other heat producing equipment. 19" (48.26cm) mounting, part number 377761400 23" (58.42cm) mounting, part number 377761500 LLP 4-1 LLP 4-1 LLP 4-1 LLP 4-1 LLP 4-1 6 & 12 amp, -48 VDC Rectifiers Specifications Inputs Environmental Voltage: Noise: Inaudible (less than 45dB, A message weighting) 120 (88-132) VAC, single phase Operating Temperature: 0° C to +50° C (+32° F to +122° F) 208/240 (176-264) VAC, single phase Storage Temperature: -40° C to +85° C (-40° F to +185° F) Frequency: 47-63 Hz Humidity: 0-95% relative humidity Protection: Circuit breaker, AC line Physical Characteristics Output Mounting: This rectifier is furnished with reversible Float/Equalize Voltage: 48 (48.3-58.0) VDC, adjustable mounting angles for 19" (48.26cm) or 23" (58.42cm) Current: mounting. Model A6F50 — 6 amps Connections: Model A12F50 — 12 amps Input/Output — Tubular screw contact, barrier terminal Regulation: Steady-state ±1/2% within range of 48.3 to 58.0 Alarm — 6-32 screw type, barrier terminal strip volts from no load to full load over the specified input Dimensions: voltage and frequency ranges. Height: 5.25" (13.34cm) Filtering: Voice band noise less than 22dBrnC with or Width: 19" (48.26cm) adaptable to 23" (58.42cm) without battery. Depth: 13.06" (33.18cm) Protection: Current limiting to protect the rectifier in the Weight: event of overload. Model A6F50 — Net 19.5 lbs. (8.85 kgs), High voltage shutdown circuit causes shutdown if output Shipping 22.5 lbs. (10.21 kgs) voltage exceeds the predetermined (adjustable) value. Model A12F50 — Net 23 lbs. (10.43 kgs), Model A6F50 — 10 amp fuse, DC load Shipping 26 lbs. (11.79 kgs) Model A12F50 — 20 amp fuse, DC load Additional Information For additional specification, engineering and installation information, request the following: Specify model A6F50, spec. number 535101400 (6 amp). Specify model A12F50, spec. number 537102600 (12 amp). 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 4-2 LLP 4-2 LLP 4-2 LLP 4-2 LLP 4-2 Fax: 440-246-4876 Marconi Communications Inc. is prohibited.