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NF025-443

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NF025-443
May 28, 2026

NF025-443

NF025-443 is a three-phase EMC line filter manufactured by SEW‑EURODRIVE. It is installed at the input of frequency inverters and servo drives to suppress high‑frequency conducted interference (150 kHz–30 MHz) and protect the drive system from grid noise. It is commonly used with MOVIAXIS, MDX, and other SEW drive series for EMC compliance in industrial environments.

Description

Model Explanation

  • NF: Netzfilter (power line filter)

  • 025: Rated continuous current 25 A

  • 443: Designed for 380–440 VAC three‑phase systems

Technical Specifications

  • Manufacturer: SEW‑EURODRIVE

  • Part Number: NF025-443

  • Input Voltage: 3‑phase AC 380–440 V, 50/60 Hz

  • Rated Current: 25 A (continuous)

  • Suitable Power: ~11 kW (matches SEW mid‑power drives)

  • Filter Type: 3‑stage EMC filter (common‑mode + differential‑mode suppression)

  • Protection Class: IP20

  • Mounting: Panel‑mount (control cabinet)

  • Weight: Approx. 2.27 kg

  • Certifications: CE, UL, RoHS

Key Features

  • Bidirectional Noise Suppression: Reduces drive‑generated interference to the grid and isolates grid disturbances from the drive.

  • High Attenuation: Effectively suppresses 150 kHz–30 MHz high‑frequency noise, lowering THD.

  • Compact & Rugged: Panel‑mount design for cabinet installation; reliable for continuous industrial operation.

  • EMC Compliance: Helps meet EN 61800‑3 and related standards for variable‑speed drive systems.

Applications

  • Industrial automation: 11 kW servo and frequency converter systems.

  • Typical scenarios: Packaging machinery, material handling, machine tools, assembly lines, and conveyor systems.

  • Standard match for SEW mid‑power drives (MOVIAXIS, MDX series).


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