Danfoss 137U4821 iC7-Automation air-cooled system module with 450 kW power rating, 820 A current rating, 380-500 V AC three phase supply, inverter module INU design, Modbus TCP communication and IP00 Open Type construction.
£31,822.40
The Danfoss 137U4821 is a high-performance iC7-Automation system module designed for demanding industrial drive systems, automation panels and motor control applications. As part of the advanced Danfoss iC7-Automation series, this air-cooled inverter module delivers powerful shaft performance, flexible integration and reliable operation in modern industrial environments.
Built for engineered drive cabinets and system integration, the 137U4821 combines high current capability with industrial communication, standard I/O and robust open-type construction. Its inverter module design makes it suitable for applications requiring precise motor control, reliable automation connectivity and efficient high-power drive performance.
With a 450 kW / 600 hp power rating, 820 A current rating, three-phase 380–500 V AC supply and Modbus TCP communication, the Danfoss 137U4821 is ideal for industrial machinery, process systems, pumps, fans, compressors and engineered electrical enclosures. The IP00 / Open Type format is intended for installation inside a suitable control cabinet or drive panel.
System modules such as the Danfoss 137U4821 allow engineers to build powerful and flexible drive systems for demanding industrial applications. By supporting precise control of motor speed and torque, the iC7-Automation platform helps improve process reliability, reduce mechanical stress and optimise production performance.
With Modbus TCP communication, standard I/O and compact open-type construction, the 137U4821 is well suited to engineered drive cabinets, automation systems and high-power motor control installations where flexible integration and dependable operation are essential.
| Power | 450 kW |
|---|---|
| Current | 820 A |
| Phase | Three Phase |
| IP Rating | IP00 |
| Series | iC7-Automation |
| Part Number | 137U4821 |
| Model Code | IC7-60SAIN05-820AE00F4+AEU1+AKFX+BAMT+BDC1+BEXX+BF20+BGK1+BH15+BK15+CAT0+CBC1+DAAU+EGIN+EHEN |
| Product Type | iC7-Automation system module |
| Product Category | Air-cooled system module |
| Drive Type | Inverter module, INU |
| Power Rating | 450 kW / 600 hp |
| Current Rating | 820 A |
| Input Voltage | 380–500 V AC |
| Input Phases | 3-phase |
| Protection Rating | IP00 / Open Type |
| Frame Size | IR11 |
| EMC Category | C4 |
| Integration Unit | Standard, with dU/dt filter |
| Other Protocols | Ethernet port, no protocol |
| Control Panel | Control Panel 2.8 OPX20 |
| Standard I/O | I/O and Relay Option OC7C1 |
| Functional Safety | None, not upgradable |
| Cooling Method | Air-cooled |
| Net Weight | approx. 185 kg |
| Gross Weight | approx. 215 kg |
| EAN | 5715253732589 |
| EMC Filter | None |
The Danfoss 137U4821 is used in industrial drive systems as an inverter system module for controlling motors in automation, process control and engineered cabinet applications.
The Danfoss 137U4821 has a power rating of approximately 450 kW / 600 hp.
The Danfoss 137U4821 has a rated current of 820 A.
This iC7-Automation system module operates from a three-phase 380–500 V AC supply.
The module includes Modbus TCP OS7MT communication for integration with industrial automation systems.
Danfoss iC7-Automation system modules are trusted by engineers and system integrators for demanding industrial drive applications requiring reliable performance, flexible configuration and efficient automation integration.
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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...