137U1855 Danfoss 1.1kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137U1855 iC7-Automation frequency converter, a 1.1 kW three phase variable frequency drive with PROFINET RT communication, integrated STO and SS1-t safety functions, and IP20 open-type cabinet mounting for industrial automation systems.
Why Choose the Danfoss 137U1855 iC7-Automation Frequency Converter?
The Danfoss 137U1855 is a high-performance iC7-Automation frequency converter designed for accurate speed and torque control of three-phase AC motors in industrial automation systems. As part of the advanced Danfoss iC7-Automation drive series, it provides reliable motor control, flexible connectivity and integrated safety features for modern machinery and production environments.
This drive is engineered for OEMs, machine builders and automation engineers who require dependable performance, efficient commissioning and seamless integration with industrial control networks. Its robust design, coated electronics and built-in control functionality help improve machine uptime while reducing complexity in panel-based installations.
With a rated motor power of 1.1 kW, a three-phase 380–500 V AC supply and PROFINET RT fieldbus support, the Danfoss 137U1855 is ideal for conveyors, packaging equipment, pumps, fans and automated production machinery. Its compact IP20 open-type enclosure is suitable for installation inside control cabinets and electrical panels.
Key Advantages
Advanced iC7-Automation variable frequency drive for industrial motor control.
1.1 kW motor power rating suitable for automation machinery.
Three-phase 380–500 V AC input for industrial power systems.
Integrated PROFINET RT communication for automation networks.
Built-in Safe Torque Off (STO) and SS1-t functional safety.
Integrated brake chopper for dynamic motor control applications.
Coated PCB protection for improved reliability in demanding environments.
Compact IP20 open-type design for cabinet installation.
Key Features
Danfoss iC7-Automation frequency converter series.
1.1 kW rated motor power.
3.0 A rated output current.
Three-phase 380–500 V AC input supply.
PROFINET RT fieldbus protocol enabled.
Ethernet port with additional protocol support.
Integrated STO and SS1-t safety functions.
Standard I/O configuration for industrial control systems.
Control Panel 2.8 OPX20 interface.
Air-cooled design with IP20 open-type protection.
EMC Category C1 and C2 compliance.
Frame size FA02b for compact panel mounting.
Reliable Motor Control for Modern Automation
Variable frequency drives such as the Danfoss 137U1855 control motor speed by regulating output voltage and frequency. This helps improve process accuracy, reduce mechanical stress and optimise energy use across industrial machinery and production systems.
The iC7-Automation platform is built for connected industrial environments, offering advanced control, flexible I/O and integrated communication options. With built-in safety features and PROFINET RT support, this drive is well suited to demanding automation systems where reliability, diagnostics and connectivity are essential.
Typical Applications
Industrial conveyors and material handling systems.
Packaging and processing machinery.
Pumps, fans and ventilation equipment.
Automated production and assembly lines.
Machine building and OEM automation systems.
Industrial motion control applications.
Manufacturing and factory automation equipment.
Process machinery requiring networked motor control.
The Danfoss 137U1855 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and production systems.
What motor power is supported by this drive?
The drive is rated for motors with an output power of approximately 1.1 kW.
What supply voltage does the drive require?
The 137U1855 operates from a three-phase 380–500 V AC supply.
Which fieldbus protocol is included?
This model includes PROFINET RT fieldbus support for integration with industrial automation networks.
What safety features are included?
The drive includes integrated Safe Torque Off (STO) and SS1-t functional safety features.
Trusted by Industrial Automation Engineers
Danfoss iC7-Automation frequency converters are trusted by machine builders, OEMs and industrial engineers for dependable motor control, advanced connectivity and efficient operation in modern automation systems.
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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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...