137U0952 Danfoss 355kW Three Phase iC7-Automation Variable Speed Drive

137U0953 Danfoss 400kW Three Phase iC7-Automation Variable Speed Drive

Danfoss 137U0953 iC7-Automation frequency converter, a high-power three-phase industrial drive with 736 A output current, 380-500 V AC input, Modbus TCP communication and integrated Safe Torque Off functionality.

SKU: 137U0953Alt SKU: IC7-60FA3N05-736AE21F3+AGCX+AJFX+BAMT+BDBA+BEF1+BF20+DAAUMPN: 137U0953
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Manufacturer Lead Time

£33,304.80

Why Choose the Danfoss 137U0953 iC7-Automation Frequency Converter?

The Danfoss 137U0953 is a high-power iC7-Automation frequency converter designed for precise speed and torque control of large three-phase AC motors. Built for demanding industrial automation and process control environments, this drive delivers dependable performance, efficient motor operation and flexible connectivity for modern industrial systems.

As part of the advanced Danfoss iC7-Automation series, the 137U0953 combines high output capacity with integrated communication, functional safety and robust air-cooled construction. Its industrial design makes it suitable for heavy-duty motor control applications where reliability, process accuracy and energy efficiency are essential.

With a rated motor power of approximately 400 kW, a three-phase 380–500 V AC supply and a continuous output current of 736 A, the Danfoss 137U0953 is ideal for large pumps, fans, compressors, conveyors and other high-demand industrial machinery applications.

Key Advantages

  • High-power industrial frequency converter for demanding automation systems.
  • 400 kW motor power rating suitable for large industrial motors.
  • Three-phase 380–500 V AC input for industrial power networks.
  • 736 A rated output current for heavy-duty motor control.
  • Integrated Safe Torque Off (STO) safety function.
  • Built-in Modbus TCP and Ethernet connectivity.
  • IP21 / UL Type 1 protection for industrial installation environments.

Key Features

  • Danfoss iC7-Automation frequency converter series.
  • Approx. 400 kW rated motor power.
  • 736 A continuous output current.
  • Three-phase 380–500 V AC input supply.
  • Air-cooled drive construction.
  • IP21 / UL Type 1 enclosure rating.
  • EMC category C3.
  • Integrated Safe Torque Off (STO) functionality.
  • Modbus TCP fieldbus protocol enabled.
  • Ethernet port for industrial automation communication.
  • Control Panel 2.8 OPX20 included.
  • Standard I/O with digital and analogue inputs and outputs.

Reliable Motor Control for High-Power Applications

Frequency converters such as the Danfoss 137U0953 regulate motor speed by adjusting output voltage and frequency. This helps improve process stability, reduce mechanical stress, lower energy consumption and extend the operating life of motors and connected equipment.

The iC7-Automation platform is designed for industrial users who require dependable high-performance motor control with advanced connectivity. Its integrated Ethernet communication and Modbus TCP support allow straightforward connection to PLCs, SCADA platforms and wider automation networks.

Typical Applications

  • Large industrial pumps and pumping stations.
  • High-capacity fans and ventilation systems.
  • Compressors and process machinery.
  • Heavy-duty conveyors and material handling systems.
  • Water and wastewater treatment plants.
  • Manufacturing and production lines.
  • Industrial automation and process control systems.

Technical Specifications

Power 400 kW
Current 736 A
Phase Three Phase
IP Rating IP21
Series iC7-Automation
Product type Frequency converter
Model code IC7-60FA3N05-736AE21F3
Rated motor power approx. 400 kW
Rated output current 736 A
Input voltage 380–500 V AC
Input phases 3-phase
Frequency 50 / 60 Hz
Protection rating IP21 / UL Type 1
Frame size FK11
Cooling method Air-cooled
EMC category C3
Communication protocol Modbus TCP
Ethernet Integrated Ethernet port
Functional safety Safe Torque Off (STO), not upgradable
Control panel Control Panel 2.8 OPX20
Standard I/O 4 × DI, 2 × DI/O, 2 × AI, 1 × AO, 2 × RO
Net weight approx. 191.81 kg
EMC Filter Industrial

Frequently Asked Questions

What is the Danfoss 137U0953 used for?

The Danfoss 137U0953 is used to control the speed and torque of large three-phase AC motors in industrial automation, process control and heavy-duty machinery applications.

What motor power does this drive support?

This frequency converter is suitable for applications up to approximately 400 kW, depending on the motor, duty cycle and installation conditions.

What supply voltage does the Danfoss 137U0953 require?

The drive operates from a three-phase 380–500 V AC supply.

Does this model include communication features?

Yes. The Danfoss 137U0953 includes Modbus TCP and an integrated Ethernet port for connection to industrial automation systems.

What safety function is included?

The drive includes integrated Safe Torque Off (STO) functionality to support machine safety requirements.

Trusted by Industrial Automation Professionals

Danfoss iC7-Automation frequency converters are trusted by engineers, system integrators and industrial operators for reliable motor control, energy-efficient operation and seamless integration into demanding automation environments.

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