Danfoss 137U3875 iC7-Automation air-cooled system module, a 2150 A inverter module for three-phase 380-500 V AC high-power industrial motor control applications.
Why Choose the Danfoss 137U3875 iC7-Automation System Module?
The Danfoss 137U3875 is a powerful iC7-Automation air-cooled system module designed for high-performance industrial motor control. As part of the advanced Danfoss iC7-Automation drive series, it provides reliable inverter module performance for demanding automation, process and heavy-duty machinery applications.
This system module is engineered for fast integration into large drive systems, offering high current capacity, robust construction and flexible connectivity. The IP00 / Open Type format is intended for installation within suitable electrical cabinets or engineered drive enclosures, making it ideal for system integrators and panel builders.
With a three-phase 380–500 V AC supply, 2150 A current rating and a typical motor power of up to 1200 kW at 400 V for light overload duty, the Danfoss 137U3875 is suitable for large-scale industrial motor control applications requiring efficient, dependable and precise drive performance.
Key Advantages
High-power Danfoss iC7-Automation system module for industrial drive systems.
2150 A current rating for demanding motor control applications.
Three-phase 380–500 V AC input suitable for industrial power networks.
IP00 / Open Type design for cabinet and system integration.
Modbus TCP communication for automation system connectivity.
Air-cooled design supports reliable operation in engineered installations.
Key Features
Danfoss iC7-Automation drive series.
Air-cooled system module.
Inverter module, INU.
2150 A rated current.
Three-phase 380–500 V AC input supply.
1.2 MW / 1600 HP power rating.
IP00 / Open Type enclosure rating.
Frame designation 3xIR11.
EMC category C4.
Control Panel 2.8 OPX20 included.
Standard I/O and Relay Option OC7C1.
General Purpose I/O OC7C0 in option slot A.
Reliable Motor Control for High-Power Industrial Systems
Frequency converter system modules such as the Danfoss 137U3875 regulate motor speed by controlling output voltage and frequency. This enables large industrial motors to run with improved process accuracy, reduced mechanical stress and better energy performance.
The iC7-Automation system module range is designed for demanding industrial installations where compact drive architecture, high shaft performance and integration flexibility are essential. Its communication interfaces, I/O options and modular construction make it suitable for sophisticated automation and power conversion systems.
Typical Applications
High-power industrial motor control systems.
Large pumps, fans and compressors.
Process automation and heavy manufacturing machinery.
Water and wastewater treatment plants.
Mining, metals and materials handling systems.
Industrial HVAC and large ventilation systems.
Panel-built drive systems and engineered automation cabinets.
Technical Specifications
Power
1200 kW
Current
2150 A
Phase
Three Phase
IP Rating
IP00
Series
iC7-Automation
SKU
137U3875
Product type
AC frequency converter system module
Module type
Inverter module, INU
Cooling method
Air-cooled
Rated current
2150 A
Nominal AC current
2195 A at 400 V AC / 2083 A at 460 V AC
Input voltage
380–500 V AC
Input phases
3-phase
Power rating
1.2 MW / 1600 HP
Typical motor power PL
1200 kW at 400 V AC / 1700 HP at 460 V AC
Typical motor power PH2
1000 kW at 400 V AC / 1300 HP at 460 V AC
Protection rating
IP00 / Open Type
Frame designation
3xIR11
EMC category
C4
Control panel
Control Panel 2.8 OPX20
Fieldbus protocol
Modbus TCP OS7MT
Standard I/O
I/O and Relay Option OC7C1
Option slot A
General Purpose I/O OC7C0
Functional safety
None, not upgradable
Output frequency
0–590 Hz
Short circuit current rating
100 kA
Dimensions (H × W × D)
approx. 1530 × 705 × 553 mm
Net weight
approx. 357 kg
Gross weight
approx. 447 kg
EMC Filter
None
Frequently Asked Questions
What is the Danfoss 137U3875 used for?
The Danfoss 137U3875 is used for high-power motor control in industrial automation, process systems and engineered drive installations.
What drive series does the Danfoss 137U3875 belong to?
This product belongs to the Danfoss iC7-Automation drive series.
What supply voltage does the Danfoss 137U3875 require?
The module is designed for a three-phase 380–500 V AC supply.
What is the rated current of this system module?
The Danfoss 137U3875 has a rated current of 2150 A.
Where should this module be installed?
As an IP00 / Open Type system module, it should be installed inside a suitable electrical cabinet or engineered drive enclosure.
Trusted by Industrial System Integrators
Danfoss iC7-Automation system modules are trusted by industrial engineers and system integrators for high-power motor control, flexible cabinet integration and dependable performance in demanding automation environments.
Power
1200 kW
Current
2150 A
Phase
Three Phase
IP Rating
IP00
Series
iC7-Automation
SKU
137U3875
Product type
AC frequency converter system module
Module type
Inverter module, INU
Cooling method
Air-cooled
Rated current
2150 A
Nominal AC current
2195 A at 400 V AC / 2083 A at 460 V AC
Input voltage
380–500 V AC
Input phases
3-phase
Power rating
1.2 MW / 1600 HP
Typical motor power PL
1200 kW at 400 V AC / 1700 HP at 460 V AC
Typical motor power PH2
1000 kW at 400 V AC / 1300 HP at 460 V AC
Protection rating
IP00 / Open Type
Frame designation
3xIR11
EMC category
C4
Control panel
Control Panel 2.8 OPX20
Fieldbus protocol
Modbus TCP OS7MT
Standard I/O
I/O and Relay Option OC7C1
Option slot A
General Purpose I/O OC7C0
Functional safety
None, not upgradable
Output frequency
0–590 Hz
Short circuit current rating
100 kA
Dimensions (H × W × D)
approx. 1530 × 705 × 553 mm
Net weight
approx. 357 kg
Gross weight
approx. 447 kg
EMC Filter
None
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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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...