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Rayleigh Instruments RI-D384-C Single & Three Phase Network Multifunction Energy Meter


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  • Single Phase Network or 3 phase 3 or 4 wire Network unbalanced load operation
  • -/1A or -/5A current transformer operated
  • Integrated RS485 Modbus RTU Communication
  • Din Rail Mounted - 4 Module Wide


This product is no longer available - see bottom of page for new product

The RI-D384-C is a DIN Rail Mounted Multifunction energy meter showing measuring parameters that are required for successfully carrying out energy efficiency projects and monitoring the electrical distribution in low and medium voltage networks. (1 and 3-phase systems with a neutral conductor). Ideal for both energy managers and electrical engineers.

Easy To Use
Thanks to its large backlit LCD display the RI-D384-C provides clear readings and easy access via the push buttons.

They directly display a number of multi-measurement and metering values such as :
+/- kWh (kilowatt) , +/- kvarh, kVah, I (Current), U (Potential Energy), V (Voltage), F (Frequency), P (Active Power), Q (Reactive Power), S (Apparent Power), PF (Power Factor).

The RI-D384-C standard communication options are : RS485 Modbus RTU.

Having a RS485 interface with a Modbus RTU protocol enables extremely cost-efficient networking. It features simple topology configuration and a lack of sensitivity to EMC interference. Communication between the sender and the recipient takes place on a wired basis via a sheathed, twisted pair cable. The Modbus communication can be transferred to any control system such as BMS, SCADA. PLC systems using the Modbus registers.

Class Accuracy
RI-D384-C Energy Meter Class Accuracy Table

Technical Specifications
  • WIRING INPUT 3.Ø - 4 wire, 3.Ø - 3 wire, 2.Ø - 3 wire, 1.Ø - 2 wire
  • RATED INPUT VOLTAGE 11 to 300Vac (L-N); 19 to 519Vac (L-L)
  • CT PRIMARY 1A to 10000A (Programmable for any value)
  • CT SECONDARY Nominal 5A (min 11mA, Max 6A)
  • CT Burden 0.5VA @ 5a per phase
  • PT PRIMARY 100 to 500KVac (Programmable for any value)
  • PT SECONDARY 100 to 500Vac (Programmable for any value)
  • DISPLAY UPDATE TIME 1 Second for parameters
  • DISPLAY SCROLLING Automatic / Manual
  • TEMPERATURE : Operating : -10 to 55°C / Storage : -20 to 75°C
  • HUMIDITY 85% non-condensing
  • MOUNTING Din Rail Mounting
  • WEIGHT 208gms

Additional Information

Manufacturer Rayleigh Instruments
Product Name / Options Price (ex VAT)
RI-D384-C - Single / Three Phase Multifunction DIN Rail Meter (Grey) - RS485/Modbus Call for Prices

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