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> Power one/melcher LK4000 12 volts dc @ 12 amps
Power one/melcher LK4000 12 volts dc @ 12 amps
For Sale: Power one/melcher LK4000 12 volts dc @ 12 amps
Subject Power one/melcher LK4000 12 volts dc @ 12 amps
Ad is submitted by poster:
Power One/Melcher LK4000 AC-DC Convertor Cassette 280 Watt Dual Output 12 Volt DC Power Supply
The INPUT range is 84 VAC to 250 VAC. The OUTPUT is 12 VDC at a 12AMPs
These are Melcher made supplies and the specific model isLK 4302-9ERD4T. Power One purchased Melcher. Designs remain unchanged at Power One of these supplies.
Data information on this line of power units can be found at Power One online at http:// /Products/Power-One/Compact%20Power%20Systems/AC-DC%20Short%20Order%20Catalog.pdf
From the specs for this Melcher supply in particular:
The K series of AC-DC (DC-DC) converters represents a flexible range of power supplies for use in advanced electronic systems. Features include wide input frequency range (no PFC), high efficiency, high reliability, low output voltage noise and excellent dynamic response to load/line changes. The converter inputs are protected against surges and transients occuring at the source lines. An input over- and undervoltage lock-out circuitry disables the outputs if the input voltage is outside the specified range. Certain types include an inrush current limitation preventing circuit breakers and fuses from being damaged at switch-on. All outputs are open- and short-circuit proof and are protected against overvoltages by means of a built-in suppressor diode. The outputs can be inhibited by a logic signal applied to the connector pin 18 (i). If the inhibit function is not used pin 18 must be connected to pin 14 to enable the outputs. LED indicators display the status of the converter and allow visual monitoring of the system at any time. Full input to output, input to case, output to case and output to output isolation is provided. The modules are designed and built according to the international safety standards. IEC/EN 60950 and have been approved by the safety agencies LGA (Germany) und UL (USA). The UL Mark for Canada has been officially recognized by regulatory authorities in provinces across Canada. The case design allows operation at nominal load up to 71?C in a free air ambient temperature. If forced cooling is provided, the ambient temperature may exceed 71?C but the case temperature must remain below 95?C under all conditions. A temperature sensor generates an inhibit signal which disables the outputs if the case temperature TC exceeds the limit. The outputs are automatically re-enabled when the temperature drops below the limit. Various options are available to adapt the converters to individual applications. The modules may either be plugged into 19" rack systems according to DIN 41494, or be chassis mounted.
These power supplies were in use as part of an in-house GPS transponder system for Ericson. They were used in a research facility, not a factory and not in the field. They were in service for approx one year.
Press-Send will provide a money back (or swap) warranty of correct operation, limited to the first 15 days.
Our 5000 sq. ft. store is located in Longmont, Colorado and can be found on the web at www.tiger-tech.biz.
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Posted By: Serena Tate
Contact: s.tate@repair--parts.com (Serena Tate) (this is a temporary forwarding address).
