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PFCA401SF

Key Technical Features
Ultra-Fast Protection

<1μs short-circuit isolation response

Dual-channel independent protection

Automatic self-recovery functionality

Signal Integrity Preservation

Ultra-low insertion loss (<0.1dB)

Advanced digital signal conditioning

1500V DC galvanic isolation

Explosion-Proof Design

[Ex ia] IIC T4 Ga certification

316L stainless steel enclosure

IP66 protection rating

Advanced Diagnostics

Dual-color LED per channel (green/red)

Fault counter with non-volatile memory

Remote diagnostic capability via DCS

Technical Specifications
Characteristic Specification
Operating Voltage 9-17.5V DC (PA bus powered)
Max. Short-Circuit Current 450mA per channel
Signal Bandwidth 7.8kHz-39kHz (PROFIBUS PA)
Response Time 800ns typical
Ambient Temperature -40°C to +85°C
Hazardous Certifications ATEX, IECEx, FM, CSA, NEPSI
Typical Applications
✔ Offshore oil platforms
✔ Petrochemical processing
✔ Pharmaceutical manufacturing
✔ Grain handling facilities
✔ Paint/coating production lines

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The ABB PFCA401SF is an advanced intrinsically safe fieldbus segment protector specifically engineered for PROFIBUS PA networks in hazardous industrial environments. This critical safety component provides instantaneous short-circuit protection while ensuring uninterrupted communication in explosive atmospheres.