Overview
The Roxburgh MDF350 is a three-phase RFI/EMI power line filter rated for 50A at 440V, designed to suppress electromagnetic interference in motor drive and industrial control systems. This high-performance filter supports applications requiring robust noise suppression without neutral connection, making it ideal for direct-to-drive motor installations and machinery control cabinets.
Key Features
- 50A continuous current rating at 440V AC
- Three-phase configuration without neutral requirement
- Stud terminal connections for robust mounting
- 550µH inductance and 2.2µF capacitance for effective harmonic attenuation
- Compliant with VDE0871, EN55011 (Industrial), and EN55022 standards
- RoHS-compliant manufacturing
Technical Specifications
- Input Voltage: 440V AC, 3-phase
- Current Rating: 50A continuous
- Filter Type: EMI/RFI suppression
- Inductance (minimum): 550µH
- Capacitance: 2.2µF
- Terminal Type: Stud terminals
- Dimensions: 147mm W × 230mm D × 55mm H
- Certifications: VDE0871, EN55011, EN55022
- RoHS Status: Compliant
Typical Applications
The MDF350 is widely deployed in:
- Three-phase AC motor drive systems without neutral connections
- Industrial machinery and process control cabinets
- Machine tool power distribution
- Automation and handling equipment
- High-current industrial load controllers
Compatibility & Replacements
Compatible With
- Three-phase AC motor drives (50–60 Hz)
- Industrial machine tool controls and automation systems
- Process control and handling equipment
- Direct-to-motor installations without neutral ground
- Control systems requiring VDE/EN55011 emission compliance
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The MDF350 is a standard Roxburgh three-phase motor drive filter; direct replacement depends on terminal style and mounting configuration of the original unit.
Works With
- Three-phase AC mains (50 Hz, 60 Hz)
- VFD and soft-starter control systems
- Harmonic mitigation and power quality applications
- IEC/EN-compliant industrial power distribution








