IMO RFC3-6 three-phase RFI filter for EMC compliance applications, rated at 6 A for 400 V AC inverter and industrial control installations.
£8.98
The IMO RFC3-6 is a compact and dependable three-phase RFI filter designed to support EMC compliance in industrial motor control and variable speed drive applications. Manufactured by IMO Precision Controls, it helps reduce conducted radio frequency interference generated by inverter drives and switching power equipment.
Installed between the incoming mains supply and the inverter, the RFC3-6 helps suppress high frequency electrical noise before it can travel through the electrical supply network. This supports reliable operation of PLCs, sensors, HMIs, communication equipment and other sensitive automation devices installed within industrial control systems.
With a 6 A current rating, three-phase 400 V AC operation and suitability for EN 61800-3 Category C3 industrial EMC applications, the IMO RFC3-6 is well suited to compact three-phase inverter systems, small machinery, control panels and OEM automation equipment.
Variable speed drives generate high frequency switching noise during normal operation. The IMO RFC3-6 reduces conducted emissions on the supply side of the inverter, helping maintain stable operation of nearby automation equipment and supporting EMC compliance in industrial environments.
This filter is particularly suitable for control panels where three-phase drives, PLCs, HMIs and communication equipment are installed close together. By reducing unwanted electrical emissions, it helps minimise disruption and supports dependable machine performance.
| Current | 6 A |
|---|---|
| Phase | Three Phase |
| Product type | RFI / EMC filter |
| Rated current | 6 A |
| Voltage rating | 400 V AC |
| Input phase | Three-phase |
| EMC category | EN 61800-3 Category C3 |
| Application | EMC compliance for inverter drives and control equipment |
| Mounting type | Panel / equipment mounting |
| Typical installation | Between mains supply and inverter |
| EMC Filter | Industrial |
The IMO RFC3-6 is used to reduce conducted radio frequency interference in three-phase inverter drive applications, helping support EMC compliance.
The RFC3-6 has a rated current of 6 A.
The filter is designed for three-phase 400 V AC systems.
The IMO RFC3-6 is suitable for EN 61800-3 Category C3 industrial EMC applications.
It is typically installed inside an electrical control panel between the incoming mains supply and the variable speed drive.
IMO RFI filters are widely used by panel builders, machine builders and automation engineers to reduce electrical interference, support EMC compliance and improve the reliability of industrial drive installations.
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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...