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Select Vertiv™ Geist™ rack PDU models support Residual Current Metering Type B (RCM-B). RCM-B continuously monitors the fault current of the power distribution within the IT rack. Customizable alarms provide immediate notifications of changes in residual current leakage allowing users to respond to a fault condition immediately to avoid potential catastrophic events such as critical equipment shutdown, electric shock, and electrical fires.
Application Brief Brochure

RCM-B monitoring provides increased data center availability and reduces the time required to confirm compliance with local requirements.

  • Vertiv™ rack PDU residual current metering is compliant with the EN62020 standard for total residual current metering of both AC and DC current
  • RCM-B monitoring at the rPDU level provides permanent continuous residual current metering complying with DGUV regulation 3 and does not require system disconnection for testing
  • The rack PDUs monitor per phase on three-phase rPDUs supporting the data center standard EN50600

  • Higher personal, operational and plant safety
  • Increased profitability
  • Increased fire protection
  • Early detection of data loss and network failure
  • Fault current detection directly at the consumer socket for fastest possible fault localization
  • Preventive safety to protect people from hazards caused by electric current
  • Malfunctions and unexpected interruptions of operation of sensitive equipment are minimized
  • Insulation faults in newly installed systems and devices are detected immediately
  • Permanent plant and equipment monitoring
  • Continuous monitoring equipment reduces the effort of repeat tests
  • According to the DGUV accident prevention regulation 3, the test intervals for insulation measurement can be adapted to practical requirements by means of permanent residual current monitoring
  • No expensive and unplanned plant shutdowns and service calls
  • Flammable residual currents are already detected in the formation phase
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