Interface Technology for Process Industry Applications The K-System
With more than 70 years of experience and as the inventor of the intrinsic safety barrier, Pepperl+Fuchs is a leading manufacturer of interfaces for hazardous areas. Nowadays, Interface Technology from Pepperl+Fuchs is renowned and established in process industries all over the world. Technical expertise, application know-how, and a profound market knowledge ensure that interface technology from Pepperl+Fuchs is tailored to meet specific market requirements in every detail.
One highlight is the Pepperl+Fuchs K-System with its extensive product range, worldwide certifications, unique versatility, and easy handling. From simple isolator modules for safe signal transmission to highly functional components with numerous additional functions, the K-System portfolio offers modules and systems for a wide range of applications in hazardous areas—the best protection for people, plants, and the environment, as proven by millions of installed devices from North Sea platforms to clean room applications.
Safety above All—Interface Technology from Pepperl+Fuchs
Interface technology from Pepperl+Fuchs has always been an established name in the process industry. As a pioneer in the field of intrinsically safe barriers, we build on decades of experience and are the world's leading expert in the field of intrinsic safety. To provide the best possible protection for people, systems and the environment, we offer a comprehensive range of modules and systems for a wide variety of applications - from simple isolating modules for safe signal transmission to highly functional components with numerous additional functions.

Isolated Barriers
A wide range of functions, easy maintenance, and high flexibility: this is what the K-System in particular stands for. Certified worldwide and unsurpassed in reliability, it guarantees maximum process reliability in numerous industries. The K-System is designed for mixed applications of Ex and non-Ex modules.
Its barrier function limits the energy fed into the intrinsically safe circuit. The galvanic isolation of the measuring and control circuits protects control systems and field devices from interference on the signal path, therefore ensuring the efficiency and availability of the system.

Signal Conditioners
The K-system is meticulously engineered to integrate an extensive array of signal conditioners. These signal conditioners play a crucial role in enabling the seamless transfer of signals between a control system and a designated safe area.
The ability to interface various components within a control system through such an organized structure is essential for ensuring operational reliability and safety. Therefore, the K-system is an invaluable asset for complex control environments requiring both high-performance and dependable signal transfer.
Technology Highlights
Wide Product Range for All Applications
- Modules for all signal types
- Numerous functions, from simple switch amplifiers to high performance devicesCost Savings
- Long service life due to lower power consumption, space-saving design, low heat dissipationEasy Maintenance
- Easy installation and replacement
- Internal diagnostic functionSafety on All Levels
- Choose from a complete SIL 3 portfolio for all signal types, analog and digital
Why Interface Technology from Pepperl+Fuchs?
Built on Decades of Experience
As a pioneer in the field of intrinsic safety barriers, we build on decades of experience: Pepperl+Fuchs is the world's leading expert in the field of intrinsic safety.
Global Hazardous Area Expertise
Interface systems from Pepperl+Fuchs are certified worldwide and guarantee maximum process reliability for countless applications in numerous industries.
Largest Product Portfolio of Its Kind
Pepperl+Fuchs offers a comprehensive range of modules and systems for a wide variety of applications up to SIL 3.
K-System for Maximum Reliability
The K-System impresses with high availability due to low power loss, comprehensive international support, demand-oriented installation options, and unrivaled performance.
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Brochures | Language | File Type | File Size | Download |
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Product information - HiC2422—the Universal Device for Analog Applications in Process Automation | en | PDF | 394 KB | |
Product Information - K-DUCT Profile Rail with Integrated Cable Duct Optimizes Installation | en | PDF | 290 KB |
Application reports | Language | File Type | File Size | Download |
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Application Report - K-DUCT Profile Rail with Integrated Cable Duct Optimizes Installation | en | PDF | 387 KB | |
Application Report - Limit Value Detection for Pharmaceutical Vessel Applications | en | PDF | 2 MB |
Others | Language | File Type | File Size | Download |
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Image brochure - Explosion Protection | en | PDF | 5 MB | |
Product Overview - Interface Technology | en | PDF | 4 MB |