Carlo Gavazzi WM40AV43L modular three-phase power analyser with 220-400 V L-N, 380-690 V L-L voltage inputs, 1 A current transformer input and 24-48 V AC/DC auxiliary supply.
£645.40
The Carlo Gavazzi WM40AV43L is a modular three-phase power analyser designed for accurate energy monitoring, electrical measurement and load analysis in industrial and commercial installations. As part of the Carlo Gavazzi WM40 series, it provides flexible power monitoring with optional communication and I/O modules for integration into modern energy management systems.
This panel-mounted power analyser is built for demanding electrical distribution environments where reliable measurement of voltage, current, energy and power quality is required. Its modular format allows the base unit to be expanded with communication interfaces such as Modbus, BACnet, Ethernet or Profibus modules depending on the system requirements.
With voltage inputs covering 220–400 V L-N and 380–690 V L-L, plus 1 A current transformer input, the WM40AV43L is suitable for monitoring three-phase networks in control panels, switchboards, machinery and building services. Its 24–48 V AC/DC auxiliary supply makes it well suited to automation and control cabinet installations.
Power analysers such as the Carlo Gavazzi WM40AV43L help facilities teams, panel builders and automation engineers monitor electrical consumption, system loading and power conditions across three-phase networks. By measuring key electrical parameters, the unit supports improved visibility of energy usage and helps identify inefficiencies in plant and building systems.
The WM40 series is designed around a modular architecture, allowing the analyser to be adapted to different applications through plug-in communication and I/O modules. This makes the WM40AV43L a practical choice for control panels, energy dashboards, building management systems and industrial monitoring installations.
| Current | 1 A |
|---|---|
| Voltage | 400 V |
| Manufacturer | Carlo Gavazzi |
| Series | WM40 |
| Model | WM40AV43L |
| Product type | Modular three-phase power analyser |
| Voltage input | 220–400 V L-N |
| Line voltage input | 380–690 V L-L |
| Current input | 1 (2) A current transformer input |
| Auxiliary power supply | 24–48 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 |
| Communication | Optional RS485, Ethernet, BACnet and Profibus modules |
| I/O expansion | Optional digital, analogue and input/output modules |
| Approvals | CE, cULus, UKCA |
The WM40AV43L is used for monitoring and analysing electrical parameters in single-phase, two-phase and three-phase power systems.
It supports 220–400 V L-N and 380–690 V L-L voltage inputs, making it suitable for a wide range of industrial electrical networks.
The WM40AV43L is designed for use with 1 (2) A current transformer inputs.
Yes, the WM40 series supports optional communication modules including RS485, Ethernet, BACnet and Profibus options depending on the installation requirements.
It is typically installed in electrical control panels, switchboards, distribution boards and automation cabinets.
Carlo Gavazzi WM40 power analysers are widely used by panel builders, energy managers and automation engineers for reliable electrical measurement, energy monitoring and modular system integration.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...