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Product at a glance

Secure, flexible and tamper proof

Liberty 3P is a meter for smart prepayment and managed credit applications. The meter maintains its own energy account and supports multi-rate time of use or slab tariffs and has a social non-disconnection facility (friendly credit) which prevents disconnection during the night or on public Holidays. The meter displays actual and historical information on consumption and cost of consumption. This allows consumers to see how much energy they are using and how much it costs. In addition the meter displays credit remaining and can estimate on demand how long the remaining credit will last based on the current rate of consumption. The meter and its associated system has built in features to counter fraudulent customers and reduce revenue losses.


  • Domestic prepayment
  • Prepayment for small and medium enterprises (SME)
  • Landlord/tenant prepayment for residential and office complexes


  • No physical vending tokens (keys or cards) required for vending significantly reducing infrastructure costs
  • No disconnections overnight or at weekends resulting in better acceptance of the solution by customers and a reduced need for vending station support
  • Reduced financial losses through recovery of debt owed and no additional debt accrued
  • Increased customer satisfaction and retention through increased visibility of consumption and rate of spending
  • Maximum flexibility through flexible tariffs and debt recovery
  • Can assist in reducing energy consumption and associated carbon dioxide emissions


  • Displays electricity usage in money terms
  • Support for slab or time-of-use (TOD) tariffs with up to 4 rates
  • Emergency credit facility to allow consumers to stay connected after their credit has run out for a limited time to give them an opportunity to buy a new credit token
  • Friendly credit facility to prevent disconnection during unsocial hours – no need to keep vending stations open 24/7
  • Tariffs can be updated sent to the meters using customer's cash token
  • Vending system supports debt recovery
  • Meter supports overload protection and load limiting
  • Option for freedom (remote keypad/display unit)
  • Provides historical data, enabling comparisons such as 'this month against last month.’


Connection type Direct connected
Wiring configuration 3-phase 4-wire
Voltage range 240 V (L-N), – 20% to +15%
Current range 10-60 A, 20-100 A*
Accuracy Class 1.0
Mains Frequency 50 Hz ± 5%
Burden As per relevant standards
Standards IS 13779, IEC 62055-31, IEC 62053-21
Dimensions (W x H x D) 175 x 264 x 96 mm (with extended terminal cover)
Enclosure Engineering plastic
Ingress protection IP 51
Temperature -10°C to +60°C (operating)
-25°C to +70°C (storage)
Humidity 95% non-condensing
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