Senva EM-RS485 Protocol Energy Meter (Meter ONLY)


The Senva EM-RS485 is the safest and fastest meter to install on the market. It is the perfect product for retrofits as the high voltage components are embedded in the Current/Voltage Transducer™ (CVT™). The entire assembly is easily mounted inside the electrical panel, eliminating labor and space required to install a separate transducer box. Each CVT™ sensor uses digital communication with the meter for superior noise immunity - ideal for applications where accuracy matters! The CVT™ sensors are individually calibrated and measurement accuracy is independent of the transducer.

The EM-RS485 is a three channel meter, capable of monitoring single-phase, two-phase and three-phase systems, as well as 3 independent single-phase systems with one meter. The EM-RS485 meter offers BACnet MS/TP and Modbus RTU protocols and 2 pulse inputs to maintain flexibility during installation and operation. The EM-RS485 is compatible with all sizes of CVT's™. With the EM-RS485 intelligent meter technology, the device self-configures baud rate, serial format, protocol, and address (BACnet only) - eliminating additional configuration steps. One universal EM-RS485 meter supports all CVT™ sensor options (sold separately) in the family.


  • 0.2% Meter Accuracy (ANSI C12.20 Class 0.2 standards), 1% System (meter + CVT™) Accuracy
  • Auto-configures baud rate, network type, serial format and self-addresses - No manual configuration necessary during install
  • Supports both BACnet MS/TP and Modbus RTU
  • Self diagnosing meter for troubleshooting assistance
  • 2 pulse inputs for connecting other meters (water, gas, steam, etc.)
  • One universal meter supports all CVT™ sensor options (sold separately) in the family
  • All CVT's™ (sold separately) sizes rated for 90-600V
  • Calibration is at the CVT™ level so any CVT™ from the family will maintain its accuracy with any EM Series meter
  • Multiple mounting options
    • Supports mounting on either horizontal or vertical PR30 (TS 35/F6) DIN rail
    • Snap-in mounting ears allow screwing to any suitable surface
    • Integrated rare earth magenets secures the EM-RS485 meter to any ferrous enclosure or surface - ideal for auditing!
  • Compact Size - fits in the palm of your hand!

Split-core Rogowski CVT™ (sold separately)

  • Flexible coil is easier to install
  • Senses both voltage and current, communicating with the meter through a low voltage data cable
  • Digitally calibrated; interchangeable
  • Digital communication offers superior noise immunity to traditional induced low-signal Rogowskis
  • Available in multiple sizes and ratings to meet project requirements

Browse our selection of Senva CVT Rogowski Coil Current Transformers.

More Information
Features DIN Rail Mount, Surface Mount
Manufacturer Senva
Measurement Single Phase 2 Wire, Single Phase 3 Wire, Three Phase 3 Wire, Three Phase 4 Wire
Rating 120/208V, 277/480V, 480V, 600V
Type KWH Power & Energy Meters
Additional Skus EMRS485
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