Emerson | ASCO Three-Source Priority System

 
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ASCO Three-Source Priority System

The ASCO Three-Source Priority Systems are similar to the ASCO three-source systems except they protect two critical loads rather than one critical load. Upon the loss of the utility power source, the system provides all necessary controls to start both alternative power sources. The most critical load is transferred to the first alternate power source that achieves acceptable voltage and frequency. The second most critical load is then transferred to the second alternate power source when it achieves acceptable voltage and frequency.
 
If the alternate power source feeding the most critical load should fail, the most critical load would be transferred to the second alternate power source and the second most critical load would be shed. When the utility power source is restored, the system controls automatically retransfer the loads to the utility and both alternate power sources are run for a cooldown period and then shutdown.
FeaturesProduct Features

  • Priority selector transfer switch
  • Control logic for selecting between alternate power sources
  • Normal, emergency, and/or load circuit breakers
  • Protective relaying (as required)
  • Optional instrument meters for normal, emergency, or load for local monitoring
  • Designs are based on NEMA and UL 891 standards
  • Optional engine start control logic and/or load control logic
OptionsNo options available for this product.
Product InformationNo information available for this product.
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ASCO Services Mission-Critical Care

Our comprehensive service portfolio extends beyond routine maintenance to include solution upgrades and technology training that ensure you get the most from your emergency power systems.
1 800 800 ASCO (2726) customercare@asco.com

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