137L3142 Danfoss 37kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137L3142 passive harmonic filter designed to reduce harmonic distortion and improve power quality in systems using Danfoss iC7 frequency converters and VLT drives.
Why Choose the Danfoss 137L3142 Passive Harmonic Filter?
The Danfoss 137L3142 is a high-performance passive harmonic filter engineered to improve power quality and reduce harmonic distortion in industrial motor drive systems. Designed for use with Danfoss iC7 frequency converters and VLT® drives, this filter helps facilities comply with harmonic mitigation requirements while maintaining reliable and efficient operation.
Harmonic distortion generated by variable frequency drives can negatively impact electrical infrastructure, increase equipment stress and reduce overall system efficiency. The Danfoss 137L3142 addresses these challenges by reducing total harmonic current distortion (THDi), helping protect transformers, cables, generators and other connected equipment.
As part of the Danfoss drive ecosystem, this advanced harmonic filter integrates seamlessly into industrial automation and motor control applications. Its robust design makes it suitable for demanding environments where power quality and operational reliability are critical.
Key Advantages
Designed to reduce harmonic distortion in drive systems.
Supports compliance with power quality requirements.
Helps protect electrical infrastructure and connected equipment.
Compatible with Danfoss iC7 frequency converters and VLT® drives.
Improves overall system efficiency and reliability.
Suitable for industrial automation and motor control applications.
Key Features
Danfoss part number: 137L3142.
Advanced passive harmonic filter design.
Supports THDi performance levels of ≤5% or ≤10% depending on system configuration.
Compatible with Danfoss drive platforms.
Designed for industrial and commercial power systems.
Passive harmonic filters play an important role in modern motor control installations by reducing harmonic currents generated by variable frequency drives. Lower harmonic distortion helps improve electrical system stability, reduce overheating in equipment and extend the lifespan of critical infrastructure.
The Danfoss 137L3142 is designed for installations where maintaining power quality is essential. By reducing harmonic levels, it helps facilities optimise energy usage while supporting the reliable operation of drives and connected equipment.
Typical Applications
Industrial motor control systems.
Variable frequency drive installations.
Manufacturing and production facilities.
Water and wastewater treatment plants.
HVAC systems and building services.
Industrial automation and process control applications.
Technical Specifications
Power
37 kW
Current
73 A
Phase
Three Phase
IP Rating
IP20
Part number
137L3142
Product type
Passive harmonic filter
Application
Harmonic mitigation for drive systems
Compatible products
Danfoss iC7 frequency converters and VLT® drives
Function
Reduction of harmonic current distortion
Installation
Industrial electrical systems
System integration
Drive and automation applications
Power quality enhancement
Yes
Industrial use
Yes
EMC Filter
None
Frequently Asked Questions
What is the Danfoss 137L3142 used for?
The Danfoss 137L3142 is a passive harmonic filter designed to reduce harmonic distortion in electrical systems that utilise variable frequency drives.
Which drives is the 137L3142 compatible with?
It is designed for use with selected Danfoss iC7 frequency converters and VLT® drive systems.
Why is harmonic mitigation important?
Reducing harmonics helps improve power quality, protects electrical infrastructure and enhances overall system reliability.
Can this filter help meet harmonic standards?
Yes. The filter is designed to help achieve lower harmonic distortion levels and support compliance with power quality requirements.
Where is the Danfoss 137L3142 typically installed?
It is commonly installed in industrial and commercial electrical systems alongside frequency converters and motor drive equipment.
Trusted for Industrial Power Quality Applications
Danfoss harmonic mitigation solutions are widely used across industrial and commercial facilities to improve power quality, reduce system stress and support efficient drive operation.
Power
37 kW
Current
73 A
Phase
Three Phase
IP Rating
IP20
Part number
137L3142
Product type
Passive harmonic filter
Application
Harmonic mitigation for drive systems
Compatible products
Danfoss iC7 frequency converters and VLT® drives
Function
Reduction of harmonic current distortion
Installation
Industrial electrical systems
System integration
Drive and automation applications
Power quality enhancement
Yes
Industrial use
Yes
EMC Filter
None
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
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...