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EM2172RVV53XOSX – EM2172R for Retro-Fit Energy Meter
Carlo Gavazzi EM2172RVV53XOSX three-phase retrofit energy meter with three 250 A split-core current sensors, RS485 Modbus RTU communication and pulse output.
Why Choose the Carlo Gavazzi EM2172RVV53XOSX Energy Meter?
The Carlo Gavazzi EM2172RVV53XOSX is a professional three-phase retrofit energy meter designed for accurate monitoring of electrical energy consumption and generation in industrial, commercial and building automation applications. As part of the Carlo Gavazzi EM21 series, it is supplied with three 250 A split-core current sensors, allowing rapid installation on existing electrical systems without disconnecting conductors.
The EM2172RVV53XOSX combines accurate multifunction energy measurement with RS485 Modbus RTU communication and a pulse output, making it easy to integrate into building management systems, SCADA platforms and energy management software. The split-core current sensors significantly reduce installation time and minimise downtime during retrofit projects.
Designed for 400 V L-L three-phase systems with a self-powered supply from 18 to 260 V AC L-N, this energy meter is ideal for industrial distribution boards, commercial premises, manufacturing facilities and energy efficiency programmes requiring dependable long-term monitoring.
Key Advantages
- Compact three-phase retrofit energy meter.
- Supplied with three 250 A split-core current sensors.
- RS485 Modbus RTU communication for remote monitoring.
- Pulse output for energy retransmission.
- Measures both imported and generated electrical energy.
- Suitable for DIN rail or panel mounting.
Key Features
- Carlo Gavazzi EM21 retrofit energy meter series.
- Three-phase multifunction energy meter.
- Three included 250 A split-core current sensors.
- 400 V L-L voltage input.
- 18 to 260 V AC L-N self-powered operation.
- RS485 Modbus RTU communication.
- Single pulse output for energy pulse transmission.
- Removable LCD display with EasyProg configuration.
Designed for Fast Retrofit Energy Monitoring
The Carlo Gavazzi EM2172RVV53XOSX has been developed specifically for retrofit energy monitoring projects where accurate electrical measurement is required without major modifications to existing installations. The supplied 250 A split-core current sensors allow installation around existing conductors, reducing commissioning time while maintaining measurement accuracy.
With integrated RS485 Modbus RTU communication and pulse output, the energy meter provides real-time electrical data for monitoring, energy audits, cost allocation, building automation and industrial process optimisation.
Typical Applications
- Industrial electrical distribution boards.
- Commercial building energy monitoring.
- Retrofit metering installations.
- Building management systems.
- Energy efficiency and cost allocation projects.
- Manufacturing and process facilities.
Technical Specifications
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| Measurement Connection Type | CT connection | |
|---|---|---|
| Measurement Functions | Energy | |
| Device Type | Power / energy analyser | |
| Phase | Three Phase | |
| Signal / Input Range | AC V / A (TRMS) | |
| Coil / Supply Voltage | Self-powered | |
| Communication | Modbus RTU, RS485 | |
| Display | LCD | |
| Manufacturer | Carlo Gavazzi | |
| Series | EM21 | |
| Model | EM2172RVV53XOSX | |
| Product type | Three-phase energy meter | |
| Current sensors | 3 × 250 A split-core current sensors included | |
| Voltage input | 400 V L-L AC | |
| Power supply | Self-powered, 18 to 260 V AC L-N | |
| Supported systems | Three-phase (3-wire), three-phase (4-wire), two-phase and single-phase networks | |
| Frequency | 45 to 65 Hz | |
| Energy metering | Consumption and generation | |
| Communication | RS485 Modbus RTU | |
| Output | Single pulse output | |
| Display | Removable LCD display | |
| Mounting type | DIN rail or panel mounting | |
| Protection rating | IP50 front | |
| Dimensions (H × W × D) | Approx. 72 × 72 × 65 mm | |
| Operating temperature | -25°C to +55°C |
Frequently Asked Questions
What is the Carlo Gavazzi EM2172RVV53XOSX used for?
It is used to monitor electrical energy consumption and generation in industrial and commercial three-phase electrical installations.
Are current sensors included?
Yes. The EM2172RVV53XOSX is supplied with three 250 A split-core current sensors for retrofit installations.
Does this model support Modbus communication?
Yes. It includes an integrated RS485 Modbus RTU communication interface for connection to energy management and automation systems.
Does the meter include a pulse output?
Yes. A single pulse output is provided for energy retransmission and external monitoring applications.
Can the EM2172RVV53XOSX be mounted on a DIN rail?
Yes. Its versatile housing supports both DIN rail mounting and panel mounting for flexible installation.
Trusted by Energy Management Professionals
Carlo Gavazzi EM21 retrofit energy meters are trusted worldwide by electrical engineers, panel builders and facilities managers for dependable energy measurement, simple installation and reliable long-term operation.
