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Din Rail

PAYLITETM Single Phase Split Type DIN Rail Prepayment Meter

DIN Paylite is a split type prepayment metering solution comprising of Main Control Unit (MCU) and Customer Interface Unit (CIU) which facilitates easy installation of MCU mounted in a enclosure on pole top/outside customer premises and CIU can be installed within home as per consumer’s convenience. The complete solution is 20-digit STS compliant. The MCU and CIU communicate each other via wired or wireless interface.



  • Compact design
  • 35 mm Din Rail mounting
  • 100A Load control switch
  • Load disconnect on power fail
  • 20-digit STS (Standard Transfer Specifications) compliant decryption
  • Optical port
  • Micro USB connector for remote reading
  • 2-wire galvanically isolated communication with CIU with a distance of minimum 100m (option)
  • Wireless communication with CIU over low power radio frequency (LPRF) (option)
  • LED Indicators for relay status, communication with CIU and consumption rate

    • No additional power requirement to CU in the case of wired interface.
    • In wireless interface, CIU is mains powered with battery back-up
    • LCD with alphanumeric digits for displaying energy registers and token messages in user friendly format
    • Status information provided through the language independent icons
    • 12-digit keypad with audible feedback
    • Short Codes for meter functional verification
    • CIU beeps on all token messages Le. low credit, acceptance or rejection of token etc.
    • Instantaneous load and historical data on display
    • Last five credit tokens entered on display
    • User programmable alarm limits and duration
    • LED indicators for credit status, load connect/disconnect and consumption rate
    • 2-wire polarity independent connection assures easy installation


Single Phase Split Type DIN Rail Prepayment Meter

Technical Specification

Connection Type 1P, 2W Split Type Pre Payment kWh Meter
Mounting 35 mm DIN Rail
Standards IEC 62052-11, IEC 62053-21

IEC 62055-31, SANS 1524-1

Accuracy Class Class-1.0
Rated Voltage 230 Volt (+20% to -50%)
Rated Current 5(80A), other intermediate values on request
Power Factor Zero (lag)-Unity-Zero(lead)
Starting Current 0.4% lb
Frequency 50 Hz ± 5%
Power Consumption Voltage Circuit: <2.5W/<10VA at rated voltage Current Circuit: <4VA at SA
CIU Display LCD with Alphanumeric display and status icons
LED indicators in MCU 3 nos. (relay status, Power/Communication status, calibration)
LED indicators in CIU 4 nos. (credit status, load connect/disconnect, calibration and

communication status between MCU & CIU)

MCU Communication ports

MCU Communication ports Optical Port for Local Communication Wired or Wireless interface with CIU
MCU-CIU Wired Interface Galvanically isolated 2-wire interface Communication distance-min 100m
MCU-CIU Wireless Interface Low power radio frequency (LPRF) interface Frequency bands-433MHz to 868MHZ, depending on the license free spectrum available Communication distance-100m LOS
Battery for Wireless CIU 2 nos AA type (non-rechargeable type) Easily replaceable
Operating Temperature Range -10 °C to +55 °C
Storage Temperature Range -25 °C to +70 °C
Operating Humidity Up to 95%, non condensing
IP Rating IP51
Weight MCU~0.340 kg
CIU 0.260 kg
Dimensions (L x W x H) CIU 160mm x 93mm x 37mm
MCU 132mm x 47mm x 100mm

Power Sector Leadership

  • 75+ million

    Electricity meters installed
  • Empanelled
    with all leading utilities
  • 65000 sq mtr

    Integrated manufacturing
  • Research & Development
    Centre recognized by Govt. Of India