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Delta RT 5-10kVA External Bypass Switch (Parallel) – 3U


3915100707-S35 (Delta / Server Accessory)



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Maintenance Bypass Box – Parallel (MBB-P)

The Delta Maintenance Bypass Box for Parallel UPSs (MBB-P) lets you isolate a single UPS from the load without interrupting power to essential applications. In addition, the MBB-P connects to a parallel UPS to provide redundant power protection for the UPS that is undergoing maintenance. This allows you to perform scheduled UPS maintenance or UPS replacement without disrupting power, while maintaining UPS redundancy. The MBB-P easily transfers power between normal and bypass mode using a rotary switch. 



  • Operating: 0°C to 40°C
  • Storage: -15°C to 50°C


  • Operating: 0 to 6,600 feet (0 to 2000 meters)
  • Non-operating: 0 to 49,000 feet (0 to 15,000 meters)


  • Operating: 5 to 95% relative humidity (non-condensing)
  • Non-operating: 5 to 95% relative humidity (non-condensing)

Package Contents

  • 1pcs MBB-P
  • 1set Fixing Plate
  • 1set Ear bracket
  • 2pcs Parallel Cable
  • 1pcs MBB-P Installation & Operation Guide
  • 6pcs Cable gland
  • 18pcs Terminal

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Delta air lines incorporated is a transport company which provides scheduled air transportation services to passengers and for their cargo throughout the several countries around the world. . The company was incorporated on the 16th of March 1967. Delta was originally founded by Collett Everman Woolman in 1928. Its headquarters is located at Hartsfield Jackson Atlanta, Atlanta Georgia 30354, (Hartsfield international airport). Their contact number is (404) 715-2600 and their website Delta air line surfaced with Southern Airlines and Chicago Airlines on the first of May 1953 and went on to be well know over the year till now. The company has its different segments which includes, airline, refinery and others. The refinery aspect consist of the non-jet products and other products like jet fuel. Delta air lines is one of the largest and also one of the most successful air carriers in the United States.