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SDN Series Redundant OptionsThe SDN Series standard options allow for operation in a wide variety of applications. With the addition of an external redundancy module the SDN can also be used for true redundant operation including 2N and N+x configurations. All SDN units include built in current sharing for parallel and redundant operation. All models ending in P also include a DC OK status relay contact. The external modules SDN2.5-20RED and SDN30/40RED increase the reliability by isolating the supplies and adding more signal options. Paralleling for increased power does not require the use of these modules.Module CompatibilityTwo separate modules are available to provide the maximum flexibility in size, cost and signaling capability. Refer to the chart below for information on which module can be used for each SDN power supply. Power Rating - A simple yes or no indication that this module can or cannot handle the power rating of that power supply. Input/Output Signals - Yes indicates that each power supply would have an independent relay contact to provide power supply status, and the DC bus output from the redundant module has it's own DC oK relay contact. Output only indicates that only the output of the redundant module would have a DC OK relay contact. Features
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SDN Series Redundant Options
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