Infinity and Entity from Trinity are digital energy meters for use in three phase electrical systems for sub-metering applications.

The design of these meters is based on proven microcontroller technology; with front end ASICs resulting in compact and accurate energy metering. The accuracy of the meters is maintained even under severely distorted waveform conditions which occur due to harmonics in the system.


  • Class 1.0s accuracy as per IS13779
  • Class 0.5 accuracy also available
  • Microcontroller based
  • Display: 16 x 1 LCM (Entity), 16x2 LCM with dual source(Infinity), 16x1 LCM without dual source(Infinity)


  • RS-485 Communication port with MODBUS-RTU protocol
  • Dual source measurement (EB & DG) optional available
  • Whole current models for 32A and 50A available


Type Name Statistics
Input Supply Three Phases and Neutral of a 3P4W system / Three Phases of 3P3W system.
Voltage Direct Voltage Input: Up to 300V L-N or 500V L-L Burden: 0.5VA
Current Secondary Current Input: 5A or 1A (To be specified at the time of Ordering)
CT Primary: Site Selectable
Range of Reading: 0 - 5000A
Burden : <1.0VA
Overload (Through CT): 5A CT = 6A RMS Continuous
1ACT = 1.2A RMS Continuous
(Whole Current): 120% of Imax continuous.
Auxiliary Power Supply Operating Voltage for SMPS : 80VAC-480VAC, 50-60Hz.
Comm. RS485 Port Supporting MODBUS-RTU protocol. (Infinity).
Measurement Energy Total ActiveEnergy (KWh) Range of Reading: 0 to 9999999.9 KWh
Accuracy: 1.0S as per IS13779.
Miscellaneous Dimensions Bezel 96 X 96 mm
Panel Cutout 92 X 92 mm
Depth of installation 55 mm
  Operating temp 0°C to 60°C
  Weight 0.30 Kg. (Infinity), 0.264 Kg. (Entity)
  Min.Operating Current 0.4% of CT primary.
  Dual Source Sensing By presence or absence of 230VAC across two terminals can be looped.