The LEM101 series prepaid meter is front panel mounted three phase four wire electronic prepayment active energy meters, recently researched and developed by us. LEM101 series prepaid meter with IC card as the medium for purchasing credit, they centralize many functions together, like electricity metering, load control, consumption information management, and so on. LEM101 series prepaid meter technical performances completely conform to International Standards IEC 62053-21 for Class 1 three phase active energy meter. LEM101 series prepaid meter can accurately measure the load active energy consumption in the three phase AC networks of rated frequency 50Hz or 60Hz and used indoors or in the meter box outdoors. The LEM101 series prepaid meter has multiple configurations for option, to be suitable with the various market demands. LEM101 series prepaid meter has features with excellent reliability, high overload, low power loss, long service life, perfect appearance, etc.

Functions and features

√ LEM101 series prepaid meter; Front panel mounted in 3 points for fixing, the appearance and dimensions are in accordance with Standards BS 7856 and DIN 43857.
√  LEM101 series prepaid meter; 6 digits LED or 7 digits LCD display for option.
√  LEM101 series prepaid meter; Can select one meter with one card and the card can be reloadable via the computer with an IC card programmer.
√  LEM101 series prepaid meter; Can select the meter suitable for both reloadable IC card and disposable IC card. To load, please let both IC card programmer and the computer on line. It is also available to load via the separate offline IC card programmer.
√  LEM101 series prepaid meter; Keypad IC card programmer and universal IC card programmer for option.
√  LEM101 series prepaid meter; IC card is with data encryption and anti-fake protection.
√  LEM101 series prepaid meter; Prepayment mode is by kWh. Another mode by credit is for option when ordering.
√  LEM101 series prepaid meter; Standard configuration of prepayment management system software is a single computer version. Network version is for option when ordering.
√  LEM101 series prepaid meter; Have the functions of load control, automatic detection and indication of fault. Standard configuration is without the detection function of opening terminal cover. When ordering, you can add the function: while opening terminal cover, the power will be cut.
√  LEM101 series prepaid meter; Equipped with a polarity passive energy impulse output terminal, conforming to Standards IEC 62053-31 and DIN 43864.
√  LEM101 series prepaid meter; LEDs indicate separately the power state on each phase, the energy impulse signal and load current flow direction.
√  LEM101 series prepaid meter; Automatic detection for the load current flow direction. LED lighting of load current flow direction means reverse current flow.
√  LEM101 series prepaid meter; Three elements measure the active energy consumption in one direction on three phase four wire, which is not related with the load current flow direction at all, complying with Standards IEC 62053-21.
√  LEM101 series prepaid meter; Direct connection and CT connection for option. The type of direct connection is type 16B. The type of CT connection is type 48B.
√  LEM101 series prepaid meter; Can select the extended terminal cover or short terminal cover.

Technical parameters

  Technical parameters
Model Accuracy Reference voltage (V) Current specifications (A) Starting current (A) Insulation performance
LEM101XX Class 1 3×400
AC voltage 4kV for 1 minute, 
1.2/50us waveform impulse voltage 6kV.

Outer and mounting dimension

Outer and mounting dimension

Wiring diagram

  Wiring diagram -1 (Type 16B)

Terminal Note
1 Inlet on Phase L1
3 Outlet on Phase L1
4 Inlet on Phase L2
6 Outlet on Phase L2
7 Inlet on Phase L3
9 Outlet on Phase L3
10 Inlet neutral wire
11 Outlet neutral wire
20 and 21 Passive energy impulse output port

  Wiring diagram -2 (Type 48B)

Terminal Note
1 Inlet CT on Phase L1
3 Outlet CT on Phase L1
4 Inlet CT on Phase L2
6 Outlet CT on Phase L2
7 Inlet CT on Phase L3
9 Outlet CT on Phase L3
2 L1 Phase line
5 L2 Phase line
8 L3 Phase line
10 Neutral line
20 and 21 Passive energy impulse output port

Product configuration table

  Product configuration table
  Configuration Options Configuration Code

6 digits LED

7 digits LCD

One meter with one reloadable card

Suitable for both reloadable IC card and disposable IC card

Universal IC card programmer

Keypad IC card programmer

Outer and mounting dimension - 1, short terminal cover

Outer and mounting dimension - 2, extended terminal cover

Direct connection

CT connection

Three phase four wire, Type 16B (Wiring diagram - 1)

Three phase four wire, Type 48B (Wiring diagram - 2)