Pepperl+Fuchs kfd2-sr2-ex2.w Isolated Switch Amplifier Barrier
Product Details:
Manufacturer : Pepperl + Fuchs
Product No. : kfd2-sr2-ex2.w
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Reliable Industrial Component Sourcing for Enterprises
This industrial automation component is supplied for enterprise procurement .Made-to-order and forward delivery are supported, with pricing quoted per inquiry.
To reduce sourcing risk, each order is handled individually with support for model confirmation, condition clarification, and lead time estimation before order placement. Clear quotation terms and consistent communication are provided to help partners manage expectations and complete transactions with confidence. Additional verification or clarification is available when required, supporting professional procurement and long-term cooperation.
This safety barrier provides complete galvanic separation between hazardous field-side sensor circuits and safe-side control cabinet PLC systems, eliminating ground loop interference and preventing dangerous energy transfer into explosive atmosphere equipment. Each independent channel processes standard NAMUR sensor input signals, converting low-level field switching signals into robust contact output signals for PLC digital input modules. Integrated wire-break and short-circuit fault monitoring delivers collective fault signaling via a dedicated relay contact for central cabinet diagnostic systems.
Detail:
| Parameter Item |
Standard Specification of Pepperl+Fuchs KFD2-SR2-EX2.W |
| Brand |
Pepperl+Fuchs |
| Full Model Code |
KFD2-SR2-EX2.W |
| Product Series |
KFD Modular Intrinsic Safety Isolator Barrier |
| Channel Quantity |
2 Independent NAMUR Input Channels |
| Input Signal Standard |
NAMUR EN 60947-5-6 Proximity Sensor Signals |
| Power Supply Input Voltage |
20 V DC ~ 30 V DC Nominal 24 V DC |
| Nominal Operating Current Consumption |
≤ 60 mA @ 24 V DC |
| Galvanic Isolation Voltage (Field ↔ Control Side) |
2500 V AC isolation test voltage |
| Hazardous Side Intrinsic Safety Rating |
Ex ia IIC / Ex ib IIC, Ex ia D Dust |
| Approved Hazardous Zones |
Gas Zone 0, Zone 1; Dust Zone 20, Zone 21 |
| Input Fault Detection |
Wire break monitoring + short-circuit detection per channel |
| Fault Indication Output |
Potential-free collective fault relay contact (NO/NC configurable) |
| Control Side Output Type |
Passive transistor switch outputs for PLC digital inputs |
| Terminal Wiring Type |
Anti-loose screw clamp terminals |
| Compatible Wire Cross Section |
0.5 mm² ~ 1.5 mm² solid / stranded copper wire |
| Mounting Standard |
35 mm EN Top-Hat DIN Rail |
| Ambient Operating Temperature |
-20 ℃ ~ +60 ℃ |
| Storage & Transport Temperature |
-40 ℃ ~ +85 ℃ |
| Vibration Resistance Standard |
IEC 60068-2-6, 10–150 Hz, 1 mm amplitude |
| Shock Resistance Standard |
IEC 60068-2-27, 30 g peak acceleration |
| Ingress Protection Rating |
IP20 (indoor cabinet installation only) |
| Net Unit Weight |
110 g |
| Global Safety Certifications |
ATEX, IECEx, UL, CSA, GL Marine, RoHS Compliant |
| Component Name |
Raw Material Grade |
Functional Description for KFD2-SR2-EX2.W |
| Main DIN Rail Housing Body |
Flame-Retardant PA66 Plastic (UL94 V0) |
Low-profile compact enclosure, high dielectric insulation, integrated DIN rail snap-lock clip structure |
| Input / Output Terminal Block Insulators |
Glass-Filled PBT Insulating Plastic |
Segregated terminal chambers to separate hazardous field wiring and safe control wiring circuits |
| Terminal Conductive Clamp Contacts |
Nickel-Plated Copper Alloy |
Anti-oxidation low-resistance clamping structure, vibration-resistant screw locking mechanism |
| Galvanic Isolation Transformer Core |
Laminated Silicon Steel + Epoxy Encapsulation |
High-isolation signal transformer blocking cross-circuit noise and dangerous energy transfer |
| Fault Monitoring Relay Module |
Silver Alloy Contact Micro Relay |
Potential-free collective fault signal output for remote cabinet diagnostic alarms |
| Internal Signal Conditioning PCB |
High-Tg FR4 Flame-Retardant Printed Circuit Board |
Dual independent NAMUR amplifier channels, wire-break detection circuit logic |
| Overcurrent Intrinsic Safety Limiting Resistors |
High-Stability Metal Oxide Film Resistors |
Current/voltage energy limitation to maintain Ex ia intrinsic safety ratings |
| Internal Circuit Encapsulation Compound |
Silicone-Free Epoxy Potting Resin |
Vibration and moisture protection for critical isolation and safety components |
| DIN Rail Snap Mount Clip |
Tempered Spring Galvanized Steel |
Quick snap-on rail installation, anti-slip locking for high-vibration cabinet environments |
| Terminal Insulation Safety Cover |
Transparent PP Plastic |
Physical touch protection for live wiring terminals during maintenance operations |
Brand
Pepperl+Fuchs Automation is our world. Perfect application solutions are our goal.
In 1945, against the backdrop of a war - torn world, Walter Pepperl and Ludwig Fuchs, driven by a strong sense of inventiveness, entrepreneurial foresight, and a deep - seated belief in self - reliance, established a humble radio workshop in Mannheim, Germany.
Their journey was filled with hands - on exploration. As they worked on various radio - related projects, the experiences they amassed became the fertile ground for new and innovative concepts. They took great pleasure in delving into the needs of their customers, constantly striving to develop products that could meet and exceed expectations.
Achievers Automation Limited has more than 10 years experience in the market of Industrial Automation, specialized in reselling factory sealed Probe, Sensor, DCS,isolator barrier, HMI, PLC,Adapter,Profibus connector and cable from Brands as BENTLY NEVADA, E+H, MTL, AB, Pepperl+Fuchs, YOKOGAWA, ASCO, Schneider, Lenze, Pro-face, Mitsubishi, Omron, Lenze, Delta, IFM etc. If you have any request, please do not hesitate to contact us.
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FAQ of Achievers
Q:Are the Products Genuine OEM Units?
A: These items have been certified by Achievers Automation Limited to be genuine OEM Units obtained through OEM or independent third-party channels.
Q:How will you arrange shipment?
A: We can arrange shipment based on your request. We have cooperated forwader who can arrange shipment via FedEx, DHL,TNT with good price.
Q:What is the warranty of goods?
A: One-year Warranty.
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