Why Choose the Danfoss 137G9997 VLT® Micro Drive FC 51?
The Danfoss 137G9997 is a compact and highly reliable AC variable frequency drive (VFD) designed for precise speed and torque control of three-phase motors in industrial machinery, HVAC systems and automation applications. As part of the proven Danfoss VLT® Micro Drive FC 51 series, it provides efficient motor control, simplified commissioning and dependable long-term operation.
Designed for machine builders, panel manufacturers and industrial engineers, the VLT® Micro Drive FC 51 combines compact dimensions with powerful motor control functionality. Its intelligent design reduces panel space requirements while delivering excellent performance across a wide range of applications. The drive features guided programming, integrated communication capabilities and coated PCBs for increased reliability in demanding environments.
With advanced motor control algorithms, built-in protection functions and flexible configuration options, the Danfoss 137G9997 helps improve energy efficiency, optimise machine performance and reduce operational costs. Its compact panel-mounted format allows straightforward installation inside electrical control cabinets and machinery control systems.
Key Advantages
Compact variable frequency drive designed for industrial motor control applications.
Reduces energy consumption through variable speed operation.
Quick commissioning with intuitive parameter configuration.
Coated circuit boards for increased durability.
Integrated motor protection and monitoring functions.
Suitable for OEM equipment and automation systems.
Key Features
Danfoss VLT® Micro Drive FC 51 series.
Compact panel-mounted construction.
Integrated RS485 communication interface.
Modbus RTU communication support.
Built-in PID controller functionality.
Automatic Energy Optimisation (AEO).
Electronic Thermal Relay (ETR) motor protection.
Coated PCBs for operation in demanding environments.
Reliable Motor Control for Industrial Machinery
Variable frequency drives such as the Danfoss VLT® Micro Drive FC 51 regulate motor speed by adjusting output voltage and frequency. This enables machinery to operate more efficiently while improving process accuracy and reducing wear on motors and mechanical components.
The FC 51 platform is widely used by industrial automation professionals due to its compact footprint, simple installation process and dependable motor control performance. Integrated communication interfaces and advanced programming options allow seamless integration into modern automation systems.
Typical Applications
Industrial conveyors and material handling systems.
Pumps and pressure boosting equipment.
Fans and ventilation systems.
Packaging and processing machinery.
Mixers and production equipment.
OEM automation and machine-building applications.
Technical Specifications
Power
75 kW
Current
147 A
Phase
Three Phase
IP Rating
IP20
Series
VLT® Micro Drive FC 51
Part number
137G9997
Product type
AC variable frequency drive
Drive family
VLT® Micro Drive
Control functions
PID control and energy optimisation
Motor protection
Electronic Thermal Relay (ETR)
Protection rating
IP20
Mounting type
Panel mounting
PCB protection
Coated circuit boards
Compliance
CE compliant
EMC Filter
None
Frequently Asked Questions
What is the Danfoss 137G9997 used for?
The Danfoss 137G9997 is used to control the speed and torque of AC motors in industrial automation, machinery and building services applications.
Does the drive improve energy efficiency?
Yes. The VLT® Micro Drive FC 51 incorporates energy optimisation functions that help reduce power consumption while maintaining motor performance.
What communication options are available?
The drive includes an integrated RS485 interface and supports Modbus RTU communication for automation system integration.
Is the drive suitable for industrial environments?
Yes. Coated circuit boards, integrated protection functions and robust construction make it suitable for demanding industrial installations.
Where is the Danfoss 137G9997 typically installed?
The drive is typically installed inside electrical control panels and machine cabinets as part of industrial motor control systems.
Trusted by Industrial Automation Professionals Worldwide
Danfoss VLT® Micro Drive FC 51 frequency converters are widely trusted by machine builders and industrial engineers for reliable motor control, efficient operation and straightforward integration into modern automation systems.
Power
75 kW
Current
147 A
Phase
Three Phase
IP Rating
IP20
Series
VLT® Micro Drive FC 51
Part number
137G9997
Product type
AC variable frequency drive
Drive family
VLT® Micro Drive
Control functions
PID control and energy optimisation
Motor protection
Electronic Thermal Relay (ETR)
Protection rating
IP20
Mounting type
Panel mounting
PCB protection
Coated circuit boards
Compliance
CE compliant
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.
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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...