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PFCA401S

Key Features & Benefits
Intelligent Segment Protection

Microsecond-level short-circuit isolation (<1μs response time)

Dual independent protected channels

Automatic self-recovery function

Signal Optimization

Adaptive signal conditioning technology

<0.05dB signal attenuation

Advanced EMI/RFI filtering (up to 60dB rejection)

Industrial Durability

-40°C to +80°C operating range

IP66-rated aluminum alloy enclosure

DIN-rail mounting (35mm)

Comprehensive Diagnostics

Real-time current/voltage monitoring

Segment health scoring system

Predictive failure analysis

Technical Specifications
Parameter Specification
Operating Voltage 9-17.5V DC (bus-powered)
Protection Current 450mA per channel (configurable)
Insertion Loss <0.05dB @ 31.25kHz
Response Time 800ns (typical)
Isolation 1500V DC (channel-to-channel)
Certifications ATEX, IECEx, UL, CSA
Typical Applications
✔ Oil & gas production facilities
✔ Chemical processing plants
✔ Pharmaceutical manufacturing
✔ Power generation systems
✔ Food & beverage processing

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The ABB PFCA401S is a professional-grade fieldbus segment protection device designed for mission-critical PROFIBUS PA networks in harsh industrial environments. This advanced unit combines robust short-circuit protection with signal conditioning to ensure maximum network availability and signal integrity.