Carlo Gavazzi WM40AV73H modular three-phase power analyser with 57.7-133 V L-N, 100-230 V L-L voltage inputs, 1 A current transformer input and 100-240 V AC/DC auxiliary supply.
£627.30
The Carlo Gavazzi WM40AV73H is a modular three-phase power analyser designed for precise energy monitoring, electrical measurement and power quality analysis in industrial and commercial installations. As part of the Carlo Gavazzi WM40 series, it provides a scalable platform for monitoring electrical networks with optional communication and I/O modules for integration into automation, SCADA and energy management systems.
Designed for panel mounting in switchboards and control cabinets, the WM40AV73H measures key electrical parameters including voltage, current, power, energy, frequency, power factor and harmonic distortion. Its modular construction allows communication and I/O options to be added as required, making it suitable for both standalone monitoring and networked energy management applications.
Supporting 57.7–133 V L-N and 100–230 V L-L electrical systems with 1 (2) A current transformer inputs, the WM40AV73H is powered from a 100–240 V AC/DC auxiliary supply. It is ideal for low-voltage monitoring applications where accurate metering, flexible communications and long-term reliability are required.
Power analysers such as the Carlo Gavazzi WM40AV73H help engineers, panel builders and facilities teams monitor electrical consumption, system loading and power conditions across low-voltage networks. By measuring essential electrical parameters, the analyser supports improved visibility of energy usage and helps identify load imbalance, inefficiency and abnormal operating conditions.
The WM40 platform is designed around a modular architecture, allowing communication, digital I/O and analogue expansion modules to be added as project requirements evolve. This makes the WM40AV73H suitable for industrial monitoring, building management systems, switchboard metering and retrofit energy management projects.
| Current | 1 A |
|---|---|
| Voltage | 260 V |
| Manufacturer | Carlo Gavazzi |
| Series | WM40 |
| Model | WM40AV73H |
| Product type | Modular three-phase power analyser |
| Voltage input | 57.7–133 V L-N |
| Line voltage input | 100–230 V L-L |
| Current input | 1 (2) A current transformer input |
| Auxiliary power supply | 100–240 V AC/DC |
| Frequency | 50 / 60 Hz, up to 400 Hz |
| Measured networks | Single-phase, two-phase and three-phase systems |
| Mounting type | Panel mounting |
| Display | Backlit LCD display |
| Protection rating | IP65 front, IP20 terminals |
| Communication | Optional RS485, Ethernet, BACnet and Profibus modules |
| Approvals | CE, cULus, UKCA |
The WM40AV73H is used for monitoring electrical parameters, energy consumption and power quality in single-phase, two-phase and three-phase electrical systems.
It supports 57.7–133 V L-N and 100–230 V L-L voltage inputs, making it suitable for low-voltage electrical monitoring applications.
The WM40AV73H is designed for use with 1 (2) A current transformer inputs.
The unit operates with a 100–240 V AC/DC auxiliary power supply, making it suitable for many control panel and automation installations.
Yes. The WM40 series supports optional communication modules including RS485, Ethernet, BACnet and Profibus options depending on the installation requirements.
Carlo Gavazzi WM40 power analysers are widely used by panel builders, energy managers and automation engineers for reliable electrical measurement, scalable communication options and modular system integration.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...