FLUKE 1746 Power Quality Logger
The FLUKE 1746 Power Quality Logger is a powerful tool designed to monitor energy usage and power quality in industrial and commercial electrical systems. It helps identify and resolve issues that can reduce energy efficiency, cause downtime, and shorten equipment lifespan.
- Comprehensive Measurement: Captures voltage, current, harmonics, dips, swells, and transients—ideal for monitoring at service entrances, substations, or loads
- Intuitive Software Interface: The guided graphical PC interface allows for easy setup, data download, and report generation
- Compact and Versatile: Designed for tight spaces, with direct line power capability and IP65-rated connectors for harsh environments
- High Accuracy: Offers full Class A compliance for reliable, repeatable measurements
- Advanced Connectivity: Features Wi-Fi access and Energy Analyse Plus software for remote monitoring and reporting

Importance of Power Quality:
Poor power quality can lead to equipment failures, unplanned outages, energy waste, and overheating of critical components. Many of these issues go undetected until they cause costly failures. The FLUKE 1746 enables teams to continuously monitor and address problems before they escalate.
Benefits to Industry:
- Predictive Maintenance: Ongoing monitoring helps detect abnormalities early and supports better system planning
- Compliance and Reporting: Ensures adherence to industry standards through consistent, standards-based reporting
- Energy Efficiency: Identifies issues like voltage imbalance and harmonic distortion to improve power factor and reduce waste
- Sustainability: Enhances operational efficiency and supports efforts to lower carbon footprints
Built for Tough Environments:
With a compact 23 cm x 18 cm x 5.4 cm footprint, the FLUKE 1746 fits easily into confined panels and switchboards. The instrument powers directly from the measurement circuit (100 V to 500 V), ideal for installations where no auxiliary power outlet exists. Built for durability, it features IP65-rated iFlex current probes and an optional IP65-rated voltage test lead—ready for the toughest environments.
- Robust Design: Suitable for CAT IV environments, substations, and live panels
- Resilient Performance: Operates reliably during short outages and under demanding electrical conditions
- Easy Installation: The Verification Function highlights connection errors, simplifying setup and ensuring data accuracy
User-Friendly Analysis:
Even users without deep technical backgrounds can benefit from the FLUKE 1746. The software turns complex data into clear, actionable insights for engineers, facility managers, and consultants alike.
Compact, Rugged, and Versatile
With a compact 23 cm x 18 cm x 5.4 cm footprint, the FLUKE 1746 fits easily into confined panels and switchboards. The instrument powers directly from the measurement circuit (100 V to 500 V), ideal for installations where no auxiliary power outlet exists. Built for durability, it features IP65-rated iFlex® current probes and an optional IP65-rated voltage test lead—ready for the toughest environments.

Accurate and Compliant:
The FLUKE 1746 meets IEC 61000-4-30 Class A Edition 3 standards for power quality measurement. You can trust its consistent, repeatable results when monitoring at the service entrance, substation or at the load. The logger tracks harmonics, interharmonics, flicker, unbalance, and voltage dips, supporting detailed, standards-based reporting with precision.
Intelligent Logging with Intuitive Software:
Paired with Energy Analyse Plus software, the FLUKE 1746 allows seamless configuration and data analysis, whether in the field or in the workshop. The unique Verification Function ensures correct connection setup by detecting wiring errors. A simple press of a button triggers auto-correction—no need to remove test leads. When the amber status light turns green, you’re ready to log.
Via Wi-Fi or Ethernet, you can securely view live data and download logs remotely, reducing time in potentially hazardous areas and limiting the need for PPE. Create one-touch reports that align with EN 50160, IEEE 519, or GOST 33073 standards. You can also export in PQDIF or NeQual formats for third-party analysis.
▶ Boost Power Reliability: Discover the FLUKE 1746/1748 Power Quality Analysers in Action!

FLUKE 1746 Key Features:
- Three-phase power quality logging: Measure all voltage and current phases including neutral current
- Extensive logging capability: Automatically logs over 20 sessions and captures a wide array of power parameters
- Premium accuracy: Complies with Class A standards for the highest measurement reliability
- Advanced power parameter tracking: Includes flicker, unbalance, and rapid voltage changes for deep diagnostics
- Graphical PC setup: Guided application setup reduces configuration errors
- Auto-correct verification: Intelligent diagnostics notify incorrect connections with a coloured LED indicator
- Flexible power options: Operates from measured line or standard wall outlet
- Robust design: Withstands harsh conditions; IP65-rated when used with optional adapter
- Dual USB ports: One for PC, one for thumb drives—efficient data transfer without interrupting logging
- Remote connectivity: Supports wired/wireless setup and high-speed downloads
- Compact and portable: Ideal for space-limited installations
- Top-tier safety: Rated 600 V CAT IV/1000 V CAT III for secure monitoring across facilities
- Tangle-free accessories: Flat cables and flexible probes simplify tight space installation
- Backup battery: 4-hour lithium-ion battery ensures operation during brief outages
- Theft deterrent: Secure with a chain or third-party lock
- Magnetic hanger kit available: For convenient panel mounting (optional)
Software Capabilities
Paired with Energy Analyse Plus software, the FLUKE 1746 allows seamless configuration and data analysis, whether in the field or in the workshop. The unique Verification Function ensures correct connection setup by detecting wiring errors. A simple press of a button triggers auto-correction—no need to remove test leads. When the amber status light turns green, you’re ready to log.
Via Wi-Fi or Ethernet, you can securely view live data and download logs remotely, reducing time in potentially hazardous areas and limiting the need for PPE. Create one-touch reports that align with EN 50160, IEEE 519, or GOST 33073 standards. You can also export in PQDIF or NeQual formats for third-party analysis.
- Configure and download data via USB stick, Ethernet, Wi-Fi, or direct USB
- Use Energy Analyse Plus to assess every detail of power consumption and quantify energy usage
- Generate instant reports for compliance, or dive into customised views for deeper insight
Available Models
- FLUKE 1746/B/EUS – Logger only, without current probes.
- FLUKE 1746/15/EUS – Includes 1,500A, 24 in (60 cm) iFlex current probes.
- FLUKE 1746/30/EUS – Includes 3,000A, 24 in (60 cm) iFlex current probes.

Further reading:
Boost Operational Efficiency with the FLUKE 1746 Power Quality Logger – Your Industry‘s Go-To Solution for Reliable Power Monitoring
The FLUKE 1746 Power Quality Logger is a high-performance, three-phase logging solution tailored for monitoring the energy consumption and power quality of industrial and commercial electrical systems. This instrument is designed to simplify identifying and resolving power quality issues that impact efficiency, continuity, and equipment life.
With its guided graphical PC interface, users can configure settings, download data, and create reports. The FLUKE 1746 captures a wide range of parameters—voltage, current, harmonics, dips, swells, and transients— making it ideal for detailed power analysis at key system points.
Power quality logging is vital in industrial settings. Poor quality can cause equipment failure, downtime, and energy waste. These issues often go unnoticed until they disrupt operations.
By using the FLUKE 1746, engineering teams can monitor electrical networks and detect abnormalities early. Tracking voltage over time provides insights needed for compliance, system design, and predictive maintenance.
Designed for tough conditions, the FLUKE 1746 can withstand power disruptions and still log data accurately. It is part of a new generation of tools offering accuracy, durability, and ease of use for industrial applications.
It features the highest safety rating in the industry, meeting CAT IV standards for safe use in live panels and substations. This ensures data reliability and operator protection at high-risk connection points.
A standout benefit of the FLUKE 1746 is its ability to uncover issues like harmonic distortion, voltage dips, and unbalanced loads, enabling corrective actions that lead to energy savings and system stability.
The accompanying software turns logged data into clear trends and actionable reports. It supports decision-making for both engineers and facility managers.
In summary, the FLUKE 1746 is a reliable, safe, and easy-to-use tool for monitoring energy and power quality. It delivers the insights and confidence needed to maintain modern electrical systems.
Designed to operate across the entire power system, the FLUKE 1746 helps businesses take control of their infrastructure and set a new benchmark in industrial power logging.
In summary, the FLUKE 1746 Power Quality Logger is an indispensable tool for modern industrial environments that demand reliability, safety, and operational transparency. Its advanced features and ready-to-use reports are helpful. They make it easy to track energy use and power quality in any facility.