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WM40AV73L – WM40 base with 18-60V AC/DC power supply 100V/1A input
Carlo Gavazzi WM40AV73L modular three-phase power analyser with 57.7-133 V L-N, 100-230 V L-L inputs, 1 A current transformer input, 24-48 V AC/DC auxiliary supply and optional communication modules.
£548.59
Why Choose the Carlo Gavazzi WM40AV73L Power Analyser?
The Carlo Gavazzi WM40AV73L is a modular three-phase power analyser designed for accurate energy monitoring, electrical measurement and power quality analysis in industrial and commercial installations. As part of the Carlo Gavazzi WM40 series, it offers a scalable solution for monitoring electrical systems with optional communication and I/O modules for seamless integration into automation, SCADA and energy management platforms.
Designed for installation in electrical switchboards and control panels, the WM40AV73L continuously measures voltage, current, active and reactive power, energy consumption, frequency, power factor and harmonic distortion. Its modular architecture enables the addition of communication interfaces and expansion modules, allowing the analyser to be tailored to a wide range of industrial monitoring applications.
Supporting 57.7–133 V L-N and 100–230 V L-L electrical systems with 1 (2) A current transformer inputs, the WM40AV73L is powered from a 24–48 V AC/DC auxiliary supply. It is ideally suited to industrial machinery, commercial buildings and electrical distribution panels where dependable energy monitoring and electrical diagnostics are essential.
Key Advantages
- Modular three-phase power analyser for comprehensive electrical monitoring.
- Supports 57.7–133 V L-N and 100–230 V L-L voltage systems.
- 1 (2) A current transformer input for accurate CT-based measurement.
- 24–48 V AC/DC auxiliary supply for flexible installation.
- Expandable with optional communication and I/O modules.
- Suitable for industrial automation, building management and energy monitoring systems.
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.
- 24–48 V AC/DC auxiliary power supply.
- Backlit LCD display with optical programming port.
- Supports optional RS485, Ethernet, BACnet and Profibus communication modules.
Reliable Monitoring for Industrial Power Systems
The Carlo Gavazzi WM40AV73L continuously measures essential electrical parameters, enabling engineers and maintenance teams to monitor energy consumption, identify abnormal operating conditions and improve system efficiency. Advanced measurement capabilities support preventative maintenance while helping optimise electrical performance across industrial and commercial installations.
The WM40 platform is fully modular, allowing communication, digital I/O and analogue expansion modules to be added as system requirements evolve. This flexibility makes the analyser equally suitable for new installations and retrofit energy management projects.
Typical Applications
- Industrial electrical distribution panels.
- Energy monitoring and consumption analysis.
- Building management systems.
- Automation and process control panels.
- Commercial and industrial switchboards.
- Power quality monitoring and energy management.
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 | 18–60 V AC/DC | |
| Communication | BACnet, Ethernet, PROFIBUS DP, RS485 | |
| Display | LCD | |
| Current | 1 A | |
| Voltage | 100 V | |
| Manufacturer | Carlo Gavazzi | |
| Series | WM40 | |
| Model | WM40AV73L | |
| 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 | 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 | 96 × 96 mm 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 WM40AV73L used for?
The WM40AV73L measures electrical parameters, energy consumption and power quality in single-phase, two-phase and three-phase electrical systems.
What current transformers does the WM40AV73L support?
The analyser is designed for use with 1 (2) A current transformer inputs.
What auxiliary supply does this model require?
The WM40AV73L operates from a 24–48 V AC/DC auxiliary power supply.
Can communication modules be added?
Yes. The modular design supports optional RS485, Ethernet, BACnet and Profibus communication modules together with additional I/O expansion modules.
Where is the WM40AV73L typically installed?
It is commonly installed in switchboards, electrical distribution panels, industrial control panels and energy monitoring systems.
Trusted by Energy Monitoring Professionals Worldwide
Carlo Gavazzi WM40 power analysers are trusted by electrical engineers, panel builders and facility managers for delivering accurate energy measurement, scalable communication options and dependable long-term performance.
