137H3685 Danfoss 15kW Three Phase iC7-Automation Variable Speed Drive

Danfoss 137H3685 iC7-Automation frequency converter with 31A output current, 380–500V AC supply, modular design and STO safety for industrial automation applications.

SKU: 137H3685Alt SKU: IC7-60FA3N05-31A0E20F1+ACBC+ALDC+BAPR+BDBA+BEF1+DAAUMPN: 137H3685

List Price £3,810.00 ex VAT

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SUBTOTAL (EX VAT) £2,857.50

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Why Choose the Danfoss 137H3685 iC7-Automation Frequency Converter?

The Danfoss 137H3685 is a high-performance iC7-Automation frequency converter designed for advanced industrial motor control applications requiring precision, efficiency and robust system integration. Built on Danfoss’ latest-generation drive platform, it delivers intelligent control and reliable performance across demanding automation environments.

As part of the modular iC7 series, this drive combines advanced vector control, flexible communication architecture and integrated safety functionality. The 137H3685 ensures smooth torque delivery, precise speed regulation and optimised energy efficiency even under dynamic and variable load conditions.

With a rated output current of 31 A and a three-phase 380–500 V AC supply, this model is suitable for medium to higher-power industrial motors used in conveyors, pumps, compressors, fans and general automation machinery.

Key Advantages

Advanced iC7-Automation platform for precise motor control.
31 A output current suitable for medium to high industrial loads.
380–500 V AC input range for flexible installation compatibility.
Integrated Safe Torque Off (STO) safety function.
High-efficiency operation for reduced energy consumption.
Modular architecture enabling scalable automation system design.
Optimised vector control for stable performance under load variation.
Compact IP20 cabinet-mounted construction.

Key Features

Danfoss iC7-Automation series.
Model: 137H3685.
31 A rated output current.
380–500 V AC supply voltage.
High-performance vector motor control technology.
Integrated STO safety functionality (SIL-capable design).
Flexible fieldbus communication options (configuration dependent).
Advanced thermal management for continuous industrial operation.
Industrial IoT-ready architecture for smart factory integration.
Designed for high reliability in demanding environments.

Reliable Motor Control for Industrial Applications

The iC7-Automation platform is designed to deliver precise and stable motor performance across a wide range of industrial processes. It ensures smooth acceleration, consistent torque delivery and high energy efficiency even under fluctuating load conditions.

Its modular design enables seamless integration into modern automation architectures, supporting scalable communication, diagnostics and predictive maintenance capabilities for Industry 4.0 environments.

Typical Applications

Industrial conveyor systems.
Pumping and fluid handling systems.
HVAC and ventilation systems.
Compressors and process equipment.
Material handling machinery.
General industrial automation systems.

Technical Specifications

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Power	15 kW
Current	31 A
Phase	Three Phase
IP Rating	IP20
EMC Filter	Commercial
Series	iC7-Automation
Product type	Frequency converter
Rated current	31 A
Input voltage	380–500 V AC
Input phases	3-phase
Frequency	50 / 60 Hz
Output frequency	up to 590 Hz
Protection rating	IP20 (cabinet installation)
Cooling	Forced air cooling
Frame size	FA05a
Safety	Safe Torque Off (STO)
Approx. weight	14.2 kg

Frequently Asked Questions

What is the Danfoss 137H3685 used for?

It is used for precise speed and torque control of AC motors in industrial automation systems.

Does it support industrial communication protocols?

Yes, it supports modular fieldbus options such as PROFINET RT depending on configuration.

Does it include safety functions?

Yes, it includes integrated Safe Torque Off (STO) functionality for safe motor operation.

What types of motors is it compatible with?

It is compatible with standard industrial AC induction and permanent magnet motors.

Where is it installed?

It is designed for installation inside electrical control cabinets with IP20 protection requirements.

Trusted by Automation Engineers Worldwide

Danfoss iC7-Automation drives deliver intelligent, efficient and reliable motor control for modern industrial automation systems.

Power	15 kW
Current	31 A
Phase	Three Phase
IP Rating	IP20
Series	iC7-Automation
Product type	Frequency converter
Rated current	31 A
Input voltage	380–500 V AC
Input phases	3-phase
Frequency	50 / 60 Hz
Output frequency	up to 590 Hz
Protection rating	IP20 (cabinet installation)
Cooling	Forced air cooling
Frame size	FA05a
Safety	Safe Torque Off (STO)
Approx. weight	14.2 kg
EMC Filter	Commercial

UK delivery

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