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Product at a glance

Liberty 170 is an intelligent, single-phase switched electricity meter that provides information of both mains and DG electricity consumption separately, which makes it an ideal sub-metering solution. It uses a unique and innovative technique to detect the supply source, without employing any wiring and additional hardware. It is developed on a highly reliable and secure metering platform which follows the international ISO 27001 standard.

Liberty 170 has a dual-mode capability, pay-as-you-go and accounting mode. The accounting mode brings awareness to consumer for the cost of electricity consumption in non-prepayment mode. The interactive, user-friendly mobile app and in-home unit are the part of solution wherein user can see energy usage and consumption pattern in monetary terms for monitoring and better budgeting.

The advanced vending system has such a flexible architecture which facilitates the integration options with POS terminals, electricity supplier’s web portals, e-wallets, kiosks and mobile apps.

The Liberty system provides peace of mind to electricity suppliers by ensuring completeness of revenue through operational efficiency. It is simple to manage and enables the electricity supplier to provide hassle-free consumer services.


  • Single and dual supply source metering (Mains and DG)
  • Public and private industrial townships
  • Gated societies/Residential apartments
  • Small and medium commercial establishments
  • Government establishments
  • Sub-metering nodes


  • Intuitive, user-friendly, eight-digit display
  • Provision to see default displays and perform meter reading even when no supply is available to meter
  • Capacitive phone-style touchpad to navigate between various display parameters
  • Better environmental protection (IP54)
  • Ease of disconnection / settlement mechanism
  • Emergency credit and friendly credit hours/days facility to help consumers manage their account without any inconvenience
  • Slab and Time-of-use (ToU) tariff support, ToU with customisable seasons and day definition
  • Time based load limiting feature for better load management and to avoid misuse of electricity


  • Mains and DG energy recording through a single asset without any need of additional wiring and hardware, for supply source detection
  • Effective budgeting of mains and DG energy through monetary consumption displays in Prepay and accounting mode
  • Increased transparency and consumer satisfaction with detailed bifurcation of other charges (common area, maintenance, etc.)  
  • Sanction load adherence with load-limiting capability with each electricity meter for both mains and DG
  • Upfront revenue collection and revenue assurance for electricity suppliers


Connection type Direct connected
Wiring configuration 3-phase 4-wire
Voltage reference 240/230 V (L-N)
Voltage variation -40% to +30%
Current range 10-100 A
Accuracy Class 1.0
Frequency 50 Hz ±5%
Standards IS 13779, IS 15884, IS 15959
Dimensions (W x H x D) ~ 150 mm x 202 mm x 66.5 mm [with extended terminal cover]
Weight ~ 0.95 kg, 1.05 kg (with Freedom Terminal Adaptor)
Enclosure Engineering plastic
Sealing Sealed for life, additional sealing provision at meter cover
and terminal cover
Ingress protection IP 54
Temperature -10 °C to +60 °C (operating)
-25 °C to +70 °C (storage)
Humidity 95%, non-condensing
Tariff Up to 8 rates (slab or time-of-use) *
Maximum demand register Active and apparent energy for both Mains and DG *
Load survey >250 parameter days with 30-minute integration period and 7 parameters
Energy supported 13 energy parameters (factory configurable) *
Histories 12 historical sets of values
Reading data Details for all the energy charges for all 12 histories
* Separate registers for mains and DG energy
Communications Optical port for local communications,
BLE comms enable remote access for
– Data collection
– Consumer mobile App
– Consumer IHD