137L1138 Danfoss 710kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137L1138 iC7-Automation frequency converter with 1260 A output current, three-phase 380-500 V AC input, IP54 / UL Type 12 enclosure, PROFINET RT communication and integrated STO safety for demanding industrial motor control applications.
Why Choose the Danfoss 137L1138 iC7-Automation Frequency Converter?
The Danfoss 137L1138 is a powerful iC7-Automation frequency converter designed for demanding industrial motor control and automation applications. As part of the advanced Danfoss iC7-Automation drive series, it provides precision motor control, flexible connectivity and integrated safety functionality for large-scale machinery and process systems.
This frequency converter is engineered for industrial users, panel builders and system integrators who require robust high-current drive performance in harsh environments. With an IP54 / UL Type 12 enclosure, standard I/O, PROFINET RT communication and integrated Ethernet connectivity, the Danfoss 137L1138 is well suited to modern automation networks and demanding production facilities.
With a rated output current of 1260 A and operation from a three-phase 380-500 V AC supply, the 137L1138 is ideal for heavy-duty motors used in large conveyors, pumps, fans, compressors, processing systems and high-power industrial machinery.
Key Advantages
High-performance industrial frequency converter for demanding automation applications.
1260 A output current rating for high-power motor control systems.
Three-phase 380-500 V AC input for industrial power systems.
IP54 / UL Type 12 enclosure for enhanced environmental protection.
Integrated Safe Torque Off (STO) safety function.
PROFINET RT fieldbus support for industrial automation integration.
Ethernet port included for modern control networks.
Efficient air-cooled design for reliable high-power operation.
Key Features
Danfoss iC7-Automation series.
1260 A rated output current.
Three-phase 380-500 V AC input supply.
IP54 / UL Type 12 enclosure.
Frame size FB12.
EMC category C2.
Integrated Safe Torque Off (STO) functionality.
PROFINET RT OS7PRO fieldbus protocol enabled.
Ethernet port included.
Control Panel 2.8 OPX20 included.
Air-cooled construction for high-power thermal management.
Standard I/O: 4 digital inputs, 2 digital I/O, 2 analogue inputs, 1 analogue output and 2 relay outputs.
Reliable Motor Control for Heavy-Duty Automation
Frequency converters such as the Danfoss 137L1138 regulate the voltage and frequency supplied to an AC motor, enabling accurate motor speed adjustment to match process requirements. This helps improve energy efficiency, reduce mechanical stress and support smoother operation in demanding industrial systems.
The iC7-Automation platform is designed for modern industrial environments where connectivity, functional safety and dependable high-power performance are essential. With integrated STO, PROFINET RT communication and a protected IP54 enclosure, the 137L1138 is well suited to heavy-duty automation and large motor control applications.
Typical Applications
Large industrial conveyors and material handling systems.
The Danfoss 137L1138 is used to control the speed and torque of three-phase AC motors in heavy-duty industrial automation, process control and high-power machinery applications.
What output current does this drive provide?
This model has a rated output current of 1260 A.
What supply voltage does the Danfoss 137L1138 require?
The drive operates from a three-phase 380-500 V AC supply.
Does the Danfoss 137L1138 include safety functionality?
Yes, this frequency converter includes integrated Safe Torque Off (STO) functionality.
Which communication protocol is enabled?
This configuration supports PROFINET RT OS7PRO and includes an Ethernet port for integration with industrial automation systems.
Trusted by Industrial Automation Professionals
Danfoss iC7-Automation frequency converters are trusted by system integrators, machine builders and industrial engineers for reliable motor control, flexible connectivity and efficient performance in 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
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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...