Yokogawa NFSB100‑S50
- Product Name: Yokogawa NFSB100‑S50 Industrial Power Filter Module
- Product Brief: High‑performance electromagnetic interference power filter developed by Yokogawa, used to suppress power‑grid harmonic noise, eliminate electromagnetic interference and purify power supply quality for industrial control equipment.
Detailed content
- Technical Specifications: Rated input voltage: 3‑phase 380‑480 V AC, 50/60 Hz; rated current: 100 A; filtering frequency range: 10 kHz‑30 MHz; insertion loss ≥ 40 dB under 1 MHz frequency.
- Functional Features: Suppression of conducted electromagnetic interference on power line; filtering of power‑grid high‑frequency harmonic noise; protection of rear‑end precision electronic equipment from power‑grid interference; bidirectional noise suppression.
- Performance Parameters: Operating temperature: ‑25 °C to +60 °C; insulation resistance ≥ 500 MΩ; withstand voltage: 2500 V AC/1 min; power‑through efficiency ≥ 99.5%.
- Material Composition: High‑permeability ferrite magnetic core; multi‑layer wound copper coil; high‑voltage‑resistant capacitor; aluminum alloy sealed housing; fire‑retardant insulating material.
- Structural Characteristics: Compact wall‑mount/rack‑mount integrated structure; front‑end wiring terminals; built‑in multi‑stage filtering circuit; sealed dust‑proof and moisture‑proof design.
- Working Principle: Uses LC passive filtering circuit composed of inductors and capacitors to absorb and attenuate high‑frequency noise signals on power line, output pure stable industrial power supply to rear‑end control equipment.
- Advantage Highlights: Large‑current high‑power filtering capability; wide‑frequency‑band noise suppression; high‑strength sealed anti‑interference structure; low power loss; stable long‑term filtering performance.
- Applicable Industries: Frequency converter matching power filtering, large‑scale PLC system power supply purification, metallurgical industrial equipment, petrochemical control system, power plant auxiliary control system.
- Model Series: NFSB‑series high‑current power filters for Yokogawa industrial automation supporting components.
- Installation Requirements: Installed close to power‑supply input terminal of controlled equipment; shielded wiring used for input/output power lines; metal housing reliable grounding; ambient temperature strictly controlled within rated range.
- Usage Precautions: Prohibited from overload current operation; avoid installation in high‑humidity and corrosive gas environment; regular check of terminal heating status.












