Why Choose the Lovato DMED332 Three-Phase Energy Meter?
The Lovato DMED332 is a high-accuracy three-phase energy meter designed for electrical energy monitoring in three-phase systems with or without a neutral conductor. It uses external current transformers with 5 A or 1 A secondary outputs, making it particularly suitable for metering higher-current installations where direct-connected meters are unsuitable.
The DMED332 measures imported and exported active energy together with imported and exported reactive energy. Active energy measurement achieves Class 0.5s accuracy according to IEC/EN 62053-22, while reactive energy is measured to Class 2 according to IEC/EN 62053-23, providing dependable data for industrial energy monitoring and sub-metering applications.
An integrated M-Bus communication interface allows measured energy data to be incorporated into compatible building management, energy monitoring and supervisory systems. The non-expandable meter occupies only 4 DIN modules and supports phase-to-phase voltages of 380–415 V AC and phase-to-neutral voltages of 220–240 V AC.
Key Advantages
- Measures three-phase systems with or without neutral.
- External CT /5 A or /1 A connection supports higher-current electrical installations.
- High Class 0.5s active energy accuracy for dependable energy monitoring.
- Measures both imported and exported active and reactive energy.
- Integrated M-Bus communication simplifies connection to compatible energy-management systems.
- Compact 4-module DIN rail format integrates easily into distribution and control panels.
Key Features
- Lovato DMED series three-phase energy meter.
- Suitable for systems with or without neutral.
- CT-connected current measurement.
- Supports CT secondary currents of 5 A and 1 A.
- 5 A IEC maximum and rated current.
- 380–415 V AC phase-to-phase rated voltage.
- 220–240 V AC phase-to-neutral rated voltage.
- Class 0.5s active energy measurement.
- Class 2 reactive energy measurement.
- Integrated M-Bus communication interface.
- 1000 pulses/kWh LED pulse rate.
- Non-expandable 4-module DIN rail design.
Accurate Energy Monitoring with M-Bus Connectivity
CT-connected energy meters such as the Lovato DMED332 allow electrical consumption to be monitored in installations where load current exceeds the practical limits of direct-connected meters. External current transformers reproduce the primary circuit current at a standard 5 A or 1 A secondary level, allowing the meter to accurately calculate electrical energy while remaining isolated from the full load current.
The integrated M-Bus interface allows the DMED332 to communicate energy data to compatible monitoring and management systems. Combined with measurement of imported and exported active and reactive energy, this makes the meter suitable for industrial energy management, building services, renewable energy systems and detailed sub-metering applications.
Typical Applications
- Industrial three-phase energy monitoring.
- Commercial building sub-metering.
- Electrical distribution boards and switchboards.
- Building and energy management systems using M-Bus.
- Machinery and production-line energy monitoring.
- Renewable energy and bidirectional energy measurement systems.
