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DIN Rail kWh Energy Meters
TOMZN manufactures DIN rail mounted watt-hour meters for sub-metering, tenant billing and energy monitoring. The range covers single-phase and three-phase units, direct-connected and CT-operated models, and both simple kWh counters and multi-function meters that also display voltage, current, active power and power factor.
For landlords and facility operators, prepaid and multi-tariff versions support top-up credit and time-of-use rates. For integrators, RS485 Modbus RTU models report to a PLC, gateway or SCADA system, and WiFi models connect to Tuya and SmartLife apps for remote reading without a wired bus.
Several models combine metering with protection in one enclosure, adding over/under voltage, overcurrent and leakage protection so a separate protective device is not needed on the same rail.
Products are CE and CB certified, manufactured since 2002 and exported to more than 50 countries. Send us your phase configuration, rated current and the communication protocol you need, and we will quote the matching model.