Filters

Roxburgh 50A 440V 3 Wire RFI Filter MDF350

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$189.99

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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
Current Rating

50A continuous

Input Voltage

440V AC, 3-phase

Filter Type

EMI/RFI suppression

Inductance

550µH minimum

Capacitance

2.2µF

Terminal Type

Stud terminals

Phase Configuration

3-phase, no neutral

Width

147mm

Depth

230mm

Height

55mm

Certifications

VDE0871, EN55011, EN55022

RoHS Compliance

Yes

Manufacturer

Roxburgh Electronics

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