137N1203 Danfoss 710kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137N1203 iC7-Automation frequency converter with 1260 A output current, three-phase 380-500 V AC supply, PROFINET RT communication, Ethernet connectivity and integrated STO safety functionality.
Why Choose the Danfoss 137N1203 iC7-Automation Frequency Converter?
The Danfoss 137N1203 is a high-power iC7-Automation frequency converter designed for precise speed and torque control of three-phase AC motors in demanding industrial automation and process control applications. As part of the advanced Danfoss iC7-Automation drive series, it provides robust motor control, flexible communication and integrated safety functionality for large industrial systems.
This drive is engineered for applications where high current capacity, reliable operation and industrial network connectivity are essential. Its air-cooled construction, IP54 / UL Type 12 enclosure and standard I/O configuration make it suitable for demanding environments where enhanced protection and dependable performance are required.
With a rated output current of 1260 A and a three-phase 380–500 V AC supply, the Danfoss 137N1203 is suitable for large motors used in heavy-duty conveyors, pumps, fans, compressors, processing systems and industrial production equipment. PROFINET RT communication, Ethernet connectivity and integrated Safe Torque Off support make it well suited to modern automation systems.
Key Advantages
High-power frequency converter for demanding industrial automation applications.
1260 A rated output current for large motor control requirements.
Three-phase 380–500 V AC input suitable for industrial power systems.
Integrated Safe Torque Off (STO) safety functionality.
PROFINET RT fieldbus protocol enabled for industrial automation networks.
Ethernet port included for control system connectivity.
Air-cooled construction for efficient thermal management.
IP54 / UL Type 12 enclosure for demanding environments.
Key Features
Danfoss iC7-Automation frequency converter series.
1260 A nominal output current.
Three-phase 380–500 V AC input supply.
Integrated Safe Torque Off (STO) functionality.
PROFINET RT OS7PR fieldbus communication enabled.
Ethernet port with no additional protocol enabled.
Control Panel 2.8 OPX20 included.
Standard I/O: 4 DI, 2 DI/O, 2 AI, 1 AO and 2 relay outputs.
EMC category C2.
Air-cooled IP54 / UL Type 12 design.
High-Power Motor Control for Industrial Automation
Frequency converters such as the Danfoss 137N1203 regulate motor speed by adjusting the output voltage and frequency supplied to the motor. This helps improve process control, reduce mechanical stress and optimise energy use across demanding industrial applications.
The Danfoss iC7-Automation platform is designed to support modern machine and process control with integrated safety, flexible I/O and industrial network communication. With PROFINET RT connectivity and STO functionality, this drive can be integrated into large automation systems where power, reliability and network compatibility are essential.
Typical Applications
Heavy-duty conveyors and material handling systems.
Large pumps and fluid handling equipment.
Industrial fans and ventilation systems.
Compressors and process machinery.
Production lines and manufacturing equipment.
OEM automation systems and machine building.
Industrial process control and heavy-duty motor applications.
Technical Specifications
Power
710 kW
Current
1260 A
Phase
Three Phase
IP Rating
IP54
Series
iC7-Automation
Catalogue Number
7FC-AUFA3N05-1260E54F2-000130335
Product type
Frequency converter / AC drive
Rated output current
1260 A
Input voltage
380–500 V AC
Input phases
3-phase
Cooling method
Air-cooled
Protection rating
IP54 / UL Type 12
EMC category
C2
Control panel
2.8" OPX20
Fieldbus protocol
PROFINET RT OS7PR
Functional safety
Safe Torque Off (STO), not upgradable
Frame size
FB12
EMC Filter
Commercial
Frequently Asked Questions
What is the Danfoss 137N1203 used for?
The Danfoss 137N1203 is used to control the speed and torque of large three-phase AC motors in industrial automation, machinery and process control applications.
What output current does this drive provide?
The drive has a rated output current of approximately 1260 A.
What supply voltage does the drive require?
The Danfoss 137N1203 operates from a three-phase 380–500 V AC supply.
Which communication protocol is enabled?
This model includes PROFINET RT OS7PR fieldbus communication and Ethernet connectivity for industrial automation networks.
Does the Danfoss 137N1203 include safety functionality?
Yes. The drive includes integrated Safe Torque Off (STO) functionality, listed as not upgradable on this model.
Trusted by Industrial Automation Engineers Worldwide
Danfoss iC7-Automation frequency converters are trusted by machine builders, system integrators and industrial engineers for high-performance motor control, advanced connectivity and dependable operation in demanding industrial environments.
Power
710 kW
Current
1260 A
Phase
Three Phase
IP Rating
IP54
Series
iC7-Automation
Catalogue Number
7FC-AUFA3N05-1260E54F2-000130335
Product type
Frequency converter / AC drive
Rated output current
1260 A
Input voltage
380–500 V AC
Input phases
3-phase
Cooling method
Air-cooled
Protection rating
IP54 / UL Type 12
EMC category
C2
Control panel
2.8" OPX20
Fieldbus protocol
PROFINET RT OS7PR
Functional safety
Safe Torque Off (STO), not upgradable
Frame size
FB12
EMC Filter
Commercial
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
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Customers supported
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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...