Product description: Zamel Supla LEW-01 - electricity monitor - 1-phase 16 A - WiFi - Android / iOS application
The LEW-01 is a smart electricity meter from Zamel , designed for direct measurement in single-phase circuits with a maximum current of up to 16 A. The module is mounted on a DIN rail (TH35) and works with the Supla home automation system. WiFi connectivity enables monitoring and analysis of energy consumption in the mobile app and Supla Cloud, as well as data export to CSV format . The LEW-01 monitor supports the MQTT protocol, enabling integration with smart home systems and analytical tools such as Home Assistant, Grafana, and Power BI.

Zamel Supla LEW-01 - electricity monitor - 1-phase 16 A - WiFi - Android / iOS application.

The LEW-01 meter operates in the Supla system, offering electricity measurement on single-phase circuits protected by an overcurrent circuit breaker with a maximum value of 16 A.
Main features of the Zamel Supla LEW-01 meter
- Direct current measurement: up to 16 A without the need for transformers
- Bidirectional energy monitoring: also for photovoltaic installations
- 2.4 GHz WiFi communication: MQTT and API integration
- Data in the Supla application: export to CSV file
- Support for Home Assistant, Grafana, Zabbix, Power BI: extensive data analysis capabilities
- LED indication: power and activity information
- Compact format: only 1 DIN module wide (17.5 mm)
- Safety and quality: compliance with standards, IP20, installation in a distribution board
Installation and connection of the energy meter
The LEW-01 is designed for installation on a standard DIN rail (TH35) . Connection is made directly – the phase (L) and neutral (N) wires are connected to the appropriate module terminals, and the measuring lead (L') provides the current reading. The LEW-01 should only be used in circuits protected by a circuit breaker with a maximum current of 16 A. For safety reasons, the installation should be performed by a qualified electrician with SEP certification.
Practical applications
The LEW-01 is used to measure electricity consumption in homes, apartments, and small photovoltaic installations . It is ideal for monitoring lighting circuits, sockets, and small appliances. Integration with smart home systems allows it to be used for automatic monitoring, reporting, and optimization of electricity consumption.
Technical specifications of Zamel Supla LEW-01
- Nominal voltage: 230 V AC
- Voltage tolerance: -20% to 10%
- Power consumption: 0.8 W
- Frequency: 50 Hz
- Transmit power: ERP < 20 mW
- Communication: WiFi 2.4 GHz
- Accuracy class: 2 (± 2%)
- Measurement type: direct, up to 16 A
- LED indication: power
- Interfaces: MQTT, API, Supla Cloud
- Degree of protection: IP20
- Mounting: DIN rail TH35
- Operating temperature: -10°C to 55°C
- Power terminals: L, N
- Measuring clamp: L'
- Maximum wire cross-section: 2.5 mm²
- Dimensions: 90 x 17.5 x 66 mm
- Weight: 0.05 kg
Contents of the set
- LEW-01 Energy Monitor

