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DMED330 – 3PH C/W OR W/O NEUTRAL CT 5A
Lovato DMED330 three-phase CT energy meter with RS485 Modbus RTU/ASCII communication, multi-measurement functionality and support for 1 A or 5 A current transformers.
£240.53
Why Choose the Lovato DMED330 Three-phase CT Energy Meter?
The Lovato DMED330 is a professional three-phase digital energy meter designed for accurate monitoring of electrical systems using 1 A or 5 A secondary current transformers. As part of the Lovato DME energy meter range, it combines comprehensive multi-measurement functionality with an integrated RS485 Modbus RTU/ASCII communication interface in a compact DIN rail mounted unit.
Suitable for three-phase systems with or without a neutral conductor, the DMED330 measures imported and exported active energy, reactive energy, voltage, current, power, power factor and frequency. It also supports monitoring of three independent single-phase loads, providing separate energy and hour counters for each phase.
With its compact 4-module DIN rail housing, backlit LCD display and isolated RS485 interface, the DMED330 is an excellent solution for industrial switchboards, commercial buildings, OEM machinery and building management systems requiring dependable remote energy monitoring.
Key Advantages
- Designed for 1 A or 5 A CT secondary connections.
- Integrated RS485 Modbus RTU/ASCII communication.
- Monitors three-phase systems with or without neutral.
- Measures imported and exported active and reactive energy.
- Supports monitoring of three independent single-phase loads.
- Compact 4-module DIN rail installation.
Key Features
- Lovato DMED330 three-phase digital energy meter.
- CT-operated using 1 A or 5 A secondary current transformers.
- RS485 Modbus RTU/ASCII communication interface.
- Class 1 active energy accuracy.
- Imported and exported active energy measurement.
- Reactive energy measurement.
- Voltage, current, power, frequency and power factor monitoring.
- Backlit LCD display.
- Programmable tariff input.
- DIN rail mounting.
Reliable Remote Energy Monitoring
The Lovato DMED330 combines comprehensive electrical measurement with integrated RS485 communications, allowing energy data to be transmitted directly to PLCs, SCADA systems and building management platforms using Modbus RTU or Modbus ASCII protocols. Its ability to monitor both three-phase installations and three individual single-phase circuits provides additional flexibility for energy analysis and cost allocation.
The compact DIN rail design makes installation straightforward while maintaining the advanced functionality required for modern industrial and commercial energy-management systems.
Typical Applications
- Industrial switchboards.
- Commercial electrical distribution.
- Building management systems.
- Factory energy monitoring.
- OEM machinery.
- Three-phase sub-metering.
- Remote Modbus energy monitoring.
Technical Specifications
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| Measurement Connection Type | CT connection | |
|---|---|---|
| Current Input Rating (A) | 5 A | |
| Device Type | Energy meter | |
| Current | 5 A | |
| Phase | Three Phase | |
| Manufacturer | Lovato Electric | |
| Series | DME Energy Meters | |
| Model | DMED330 | |
| Product type | Three-phase digital energy meter | |
| Electrical system | Three-phase with or without neutral | |
| Current connection | External CT, 1 A or 5 A secondary | |
| Maximum CT secondary current | 6 A | |
| Rated voltage | 220-240 V AC L-N / 380-415 V AC L-L | |
| Operating voltage | 187-264 V AC L-N / 323-456 V AC L-L | |
| Frequency | 45-66 Hz | |
| Communication | Isolated RS485 | |
| Protocols | Modbus RTU and Modbus ASCII | |
| Display | Backlit LCD | |
| Active energy accuracy | Class 1 | |
| Reactive energy accuracy | Class 2 | |
| Pulse outputs | 2 programmable static outputs | |
| Tariff input | 1 programmable AC input | |
| Mounting | 35 mm DIN rail | |
| DIN modules | 4 | |
| Protection rating | IP40 (front) | |
| Operating temperature | -25°C to +55°C | |
| Approximate dimensions (H × W × D) | 90 × 72 × 63 mm | |
| Weight | Approx. 332 g | |
| HS Code | 90283019 |
Frequently Asked Questions
What is the Lovato DMED330 used for?
The DMED330 measures electrical energy and operating parameters in three-phase installations using external current transformers.
Does the DMED330 require current transformers?
Yes. It is designed for use with external current transformers having 1 A or 5 A secondary outputs.
Does the DMED330 support Modbus communication?
Yes. The meter includes an isolated RS485 interface supporting both Modbus RTU and Modbus ASCII protocols.
Can the DMED330 monitor single-phase loads?
Yes. In addition to three-phase monitoring, it can independently monitor three separate single-phase loads with individual energy and hour counters.
Is the DMED330 MID certified?
No. The DMED330 is intended for industrial monitoring and energy management rather than certified billing applications.
Trusted by Electrical Professionals Worldwide
Lovato Electric energy meters are trusted by electrical engineers, panel builders and facilities managers for accurate measurement, dependable communications and reliable long-term monitoring of industrial electrical installations.
