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SECURE Brand Liberty 370 (dual-register) Three-phase Switched Electricity Meter


The Liberty 370 is an intelligent, three-phase switched electricity meter designed to revolutionize the way you monitor and manage electricity consumption. By providing separate information on mains and DG (Diesel Generator) electricity usage, it stands out as an ideal sub-metering solution for various applications. Utilizing an innovative technique to detect the supply source without the need for additional wiring or hardware, the Liberty 370 is built on a secure and reliable metering platform adhering to the international ISO 27001 standard.

Key Features

  • Intuitive Eight-Digit Display: The Liberty 370 features a user-friendly, eight-digit display that allows for easy monitoring of electricity consumption.
  • Uninterrupted Meter Reading: Perform meter readings and access default displays even when the meter is not supplied with electricity.
  • Capacitive Touchpad: Navigate between various display parameters with a phone-style capacitive touchpad, ensuring ease of use.
  • Environmental Protection: Boasting an IP54 rating, the meter is well-protected against environmental factors.
  • Disconnection and Settlement Mechanism: Simplifies the process of disconnection and settlement.
  • Emergency and Friendly Credit Facilities: Manage accounts without inconvenience with emergency credit and friendly credit hours/days.
  • Tariff Support: Supports slab and time-of-use (ToU) tariffs, with customizable seasons and day definitions.
  • Load Management: Features time-based load limiting to manage load effectively and prevent electricity misuse.

Dual-Mode Capability

The Liberty 370 offers dual-mode functionality:

  • Pay-As-You-Go Mode: Ideal for prepayment scenarios.
  • Accounting Mode: Helps consumers become aware of electricity costs in non-prepayment settings, promoting better budgeting.

Interactive and User-Friendly

The Liberty 370 comes with a user-friendly mobile app and an in-home unit, enabling users to monitor energy usage and consumption patterns in monetary terms. This feature promotes better budgeting and consumption awareness.

Advanced Vending System

With a flexible architecture, the advanced vending system of Liberty 370 facilitates integration with:

  • POS terminals
  • Electricity suppliers’ web portals
  • E-wallets
  • Kiosks
  • Mobile apps

This flexibility ensures operational efficiency and peace of mind for electricity suppliers by ensuring completeness of revenue.


The Liberty 370 is perfect for various applications, including:

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


  • Single Asset Recording: Record mains and DG energy through a single asset without additional wiring or hardware.
  • Effective Budgeting: Facilitate budgeting of mains and DG energy through monetary consumption displays in both prepay and accounting modes.
  • Transparency and Satisfaction: Enhance transparency and consumer satisfaction with detailed bifurcation of other charges like common area maintenance.
  • Load Adherence: Ensure adherence to sanctioned loads with load-limiting capabilities for both mains and DG.
  • Revenue Assurance: Collect revenue upfront and assure revenue for electricity suppliers.


The SECURE Brand Liberty 370 is available through authorized dealer Shansen Traders in Coimbatore, Tamil Nadu, India. Experience the ease of advanced energy management with the Liberty 370 and transform how you monitor and manage electricity consumption.

Download Product Information




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) ~ 184 mm x 207 mm x 96 mm (with extended terminal cover)
Weight ~ 1.5 kg, ~ 1.64 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