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WM40AV73H – WM40 base with 90-260V AC/DC power supply 100V/1A input
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.
£533.21
Why Choose the Carlo Gavazzi WM40AV73H Power Analyser?
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.
Key Advantages
- Modular three-phase power analyser for energy and electrical monitoring.
- Suitable for 57.7–133 V L-N and 100–230 V L-L voltage systems.
- 1 (2) A current transformer input for CT-based measurement.
- 100–240 V AC/DC auxiliary supply for flexible panel integration.
- Expandable with optional communication and I/O modules.
- Ideal for energy management, automation panels and electrical distribution monitoring.
Key Features
- Carlo Gavazzi WM40 modular power analyser series.
- Three-phase network analysis and energy monitoring.
- 57.7–133 V L-N voltage input range.
- 100–230 V L-L voltage input range.
- 1 (2) A current transformer input.
- 100–240 V AC/DC auxiliary power supply.
- Optical programming port for quick configuration.
- Supports optional RS485, Ethernet, BACnet and Profibus communication modules.
Reliable Monitoring for Low-Voltage Power Systems
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.
Typical Applications
- Industrial electrical distribution panels.
- Energy monitoring and consumption analysis.
- Building management systems and facility monitoring.
- Automation and process control panels.
- Commercial and industrial switchboards.
- Power quality monitoring and low-voltage network analysis.
Technical Specifications
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| Measurement Connection Type | CT connection | |
|---|---|---|
| Measurement Functions | Power | |
| Device Type | Power / energy analyser | |
| Phase | DC | |
| Signal / Input Range | AC V / A (TRMS), DC V / A | |
| Coil / Supply Voltage | 90–260 V AC/DC | |
| Communication | BACnet, Ethernet, PROFIBUS DP, RS485 | |
| Display | LCD | |
| 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 |
Frequently Asked Questions
What is the Carlo Gavazzi WM40AV73H used for?
The WM40AV73H is used for monitoring electrical parameters, energy consumption and power quality in single-phase, two-phase and three-phase electrical systems.
What voltage range does the WM40AV73H support?
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.
What current input does this model use?
The WM40AV73H is designed for use with 1 (2) A current transformer inputs.
What auxiliary supply does the WM40AV73H require?
The unit operates with a 100–240 V AC/DC auxiliary power supply, making it suitable for many control panel and automation installations.
Can communication modules be added?
Yes. The WM40 series supports optional communication modules including RS485, Ethernet, BACnet and Profibus options depending on the installation requirements.
Trusted by Energy Monitoring Professionals Worldwide
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.
