Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
137H3678 Danfoss 4.0kW Three Phase iC7-Automation Variable Speed Drive
Danfoss 137H3678 iC7-Automation frequency converter with 13.5 A output, 380–500 V AC supply, modular architecture and STO safety for industrial automation systems.
£1,410.00
Why Choose the Danfoss 137H3678 iC7-Automation Frequency Converter?
The Danfoss 137H3678 is a high-performance iC7-Automation frequency converter designed for advanced industrial automation systems requiring precise motor control, high efficiency and scalable digital integration. As part of Danfoss’ latest generation drive platform, it delivers intelligent control capabilities combined with robust hardware designed for demanding industrial environments.
Engineered for flexibility and reliability, the iC7 series offers modular architecture, integrated industrial IoT functionality and advanced motor control performance. The 137H3678 supports complex automation tasks while maintaining stable operation under variable load conditions, making it suitable for modern production lines and process systems.
With a rated output current of 13.5 A and a three-phase 380–500 V AC supply, this drive is well suited for small to medium industrial motors used in conveyors, pumps, fans, compressors and general automation machinery.
Key Advantages
- Advanced iC7-Automation platform for high-precision motor control.
- 13.5 A output current suitable for medium-duty industrial applications.
- 380–500 V AC supply range for wide industrial compatibility.
- Integrated Safe Torque Off (STO) safety functionality.
- High-efficiency motor control for reduced energy consumption.
- Modular design supporting flexible automation integration.
- Built-in industrial IoT readiness for smart factory systems.
- Optimised thermal management for continuous operation.
Key Features
- Danfoss iC7-Automation series.
- Model: 137H3678.
- 13.5 A rated output current.
- 380–500 V AC input voltage.
- Vector-based motor control for high precision.
- Integrated STO safety function (SIL compliant architecture).
- Expandable communication modules (fieldbus dependent).
- Compact cabinet-mounted design (IP20 enclosure).
- High power density for space-efficient installations.
- Suitable for continuous industrial duty cycles.
Reliable Motor Control for Industrial Applications
The iC7-Automation platform is designed to deliver precise torque and speed control even in demanding dynamic load conditions. It maintains stable motor performance across a wide operating range, improving process accuracy and energy efficiency.
Its modular architecture allows seamless integration into modern automation systems, supporting scalable communication and digitalisation strategies for Industry 4.0 environments.
Typical Applications
- Industrial conveyor systems.
- Pumping and fluid handling systems.
- HVAC and ventilation systems.
- Packaging and production machinery.
- Compressors and process equipment.
- General industrial automation systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Power | 4 kW | |
|---|---|---|
| Current | 9.2 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| EMC Filter | Commercial | |
| Series | iC7-Automation | |
| Product type | Frequency converter | |
| Rated current | 13.5 A | |
| Input voltage | 380–500 V AC | |
| Input phases | 3-phase | |
| Frequency | 50 / 60 Hz | |
| Output frequency | 0–590 Hz | |
| Protection rating | IP20 (cabinet mounted) | |
| Cooling | Forced air cooling | |
| Frame size | FA03a | |
| Safety | Safe Torque Off (STO) |
Frequently Asked Questions
What is the Danfoss 137H3678 used for?
It is used for controlling the speed and torque of AC motors in industrial automation systems.
Does it support industrial communication protocols?
Yes, it supports modular fieldbus options depending on configuration, including Ethernet-based protocols.
Is STO safety included?
Yes, Safe Torque Off (STO) functionality is integrated for safe motor operation.
What type of motors is it suitable for?
It is suitable for standard industrial AC induction motors used in automation and process systems.
Where is it installed?
It is designed for installation inside electrical control cabinets (IP20 environment).
Trusted by Automation Engineers Worldwide
Danfoss iC7-Automation drives provide reliable, intelligent and efficient motor control for modern industrial applications requiring high performance and flexibility.
