137U3258 Danfoss 400kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U3258 iC7-Automation frequency converter, an air-cooled three phase AC drive with 380-500 V AC input, 736 A output, IP54/UL Type 12 protection, PROFINET RT connectivity and integrated STO safety.
Why Choose the Danfoss 137U3258 iC7-Automation Frequency Converter?
The Danfoss 137U3258 is a high-capacity iC7-Automation frequency converter designed for precise and reliable control of three-phase AC motors in demanding industrial automation and process applications. As part of the advanced Danfoss iC7-Automation drive series, it provides powerful motor control, flexible connectivity and dependable operation for large-scale machinery and industrial systems.
This air-cooled frequency converter is engineered for applications where robust drive performance, functional safety and automation network integration are essential. Its IP54/UL Type 12 enclosure offers enhanced protection for challenging industrial environments, while the integrated control panel, standard I/O and communication options support straightforward integration into modern control systems.
With a three-phase 380–500 V AC supply, 736 A rated output current, PROFINET RT fieldbus support and integrated Safe Torque Off (STO), the Danfoss 137U3258 delivers efficient, network-ready motor control for demanding industrial environments.
Key Advantages
High-capacity Danfoss iC7-Automation frequency converter for demanding motor control applications.
736 A rated output current for large industrial motor systems.
Three-phase 380–500 V AC input compatible with industrial power supplies.
IP54/UL Type 12 enclosure for enhanced environmental protection.
Integrated Safe Torque Off (STO) functional safety.
PROFINET RT enabled for PLC and automation network integration.
Key Features
Danfoss iC7-Automation drive series.
Air-cooled frequency converter design.
736 A rated output current.
Three-phase 380–500 V AC input supply.
IP54/UL Type 12 protection rating.
Frame size FB11.
EMC category C2.
Control Panel 2.8 OPX20 included.
Standard I/O with digital inputs, digital input/output, analogue inputs, analogue output and relay outputs.
PROFINET RT fieldbus protocol enabled.
Ethernet port available with no additional protocol.
Integrated Safe Torque Off (STO), not upgradable.
Other options included according to the configured model code.
Powerful Motor Control for Industrial Automation
Frequency converters such as the Danfoss 137U3258 regulate motor speed and torque by adjusting the frequency and voltage supplied to the motor. This enables improved process control, reduced mechanical stress and better energy performance across demanding industrial systems.
The iC7-Automation platform is designed for applications where reliable drive performance, industrial communication and functional safety are essential. With PROFINET RT connectivity and integrated I/O, the Danfoss 137U3258 can be incorporated into PLC-based automation systems and advanced control networks.
Typical Applications
Large industrial machinery and process equipment.
Heavy-duty conveyors and material handling systems.
Pumps, fans and ventilation systems.
Industrial production lines and manufacturing equipment.
Industrial drive installation / cabinet or panel system integration
EMC Filter
Commercial
Frequently Asked Questions
What is the Danfoss 137U3258 used for?
The Danfoss 137U3258 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.
What supply voltage does this drive require?
The drive operates from a three-phase 380–500 V AC supply.
What is the rated output current?
The Danfoss 137U3258 has a rated output current of 736 A.
What protection rating does this frequency converter have?
The Danfoss 137U3258 has an IP54/UL Type 12 protection rating.
Does this frequency converter support PROFINET?
Yes, the drive includes PROFINET RT fieldbus protocol support for industrial automation network integration.
Does the Danfoss 137U3258 include functional safety?
Yes, it includes integrated Safe Torque Off (STO) functionality.
Trusted by Industrial Automation Engineers
Danfoss iC7-Automation frequency converters are trusted by engineers, machine builders and industrial operators for reliable motor control, efficient performance and seamless integration into demanding automation environments.
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.
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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...