p&f 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 (p&f kfd2 sr2 ex2 w) |
| Brand |
Pepperl+Fuchs (P&F) |
| Full Official Model Code |
KFD2-SR2-EX2.W |
| Short Industry Search Alias |
p&f kfd2 sr2 ex2 w |
| Product Series |
KFD Modular Intrinsic Safety Isolator Barrier |
| Independent Signal Channels |
2 x NAMUR input channels |
| Supported Input Signal Standard |
NAMUR EN 60947-5-6 proximity sensor signals |
| Supply Input Voltage Range |
20 V DC ~ 30 V DC (Nominal 24 V DC) |
| Typical Operating Current Draw |
≤ 60 mA @ 24 V DC rated input |
| Galvanic Isolation Test Voltage (Field ↔ Control Side) |
2500 V AC |
| Intrinsic Safety Classification |
Ex ia IIC (Gas), Ex ia D (Dust) |
| Approved Hazardous Classified Zones |
Gas Zone 0, Zone 1; Dust Zone 20, Zone 21 |
| Onboard Diagnostic Functions |
Per-channel wire break detection + field short-circuit monitoring |
| Fault Signal Output |
Potential-free collective fault relay contact (NO / NC configurable) |
| Control Side Output Type |
Passive transistor switch outputs for PLC digital input modules |
| Terminal Connection Type |
Anti-loose screw clamp wiring terminals |
| Acceptable Wire Cross Section |
0.5 mm² ~ 1.5 mm² solid / stranded copper wire |
| Standard Mounting Format |
35 mm EN Top-Hat DIN Rail |
| Ambient Continuous Operating Temperature |
-20 ℃ ~ +60 ℃ |
| Storage & Transport Temperature Range |
-40 ℃ ~ +85 ℃ |
| Vibration Resistance Standard |
IEC 60068-2-6, 10–150 Hz, 1 mm amplitude |
| Mechanical Shock Resistance Standard |
IEC 60068-2-27, 30 g peak acceleration |
| Enclosure Ingress Protection Rating |
IP20 (indoor non-hazardous cabinet installation only) |
| Total Net Unit Weight |
110 g |
| Global Safety Compliance Certifications |
ATEX, IECEx, UL, CSA, GL Marine, RoHS Compliant |
| Component Name |
Raw Material Grade |
Functional Description for KFD2-SR2-EX2.W (p&f kfd2 sr2 ex2 w) |
| Main DIN Rail Enclosure Housing |
Flame-Retardant PA66 Plastic (UL94 V0) |
Low-profile compact cabinet housing, high dielectric insulation, integrated spring steel DIN rail snap lock |
| Input / Output Terminal Block Insulators |
Glass-Filled PBT High-Temp Insulating Plastic |
Separated terminal chambers to physically isolate hazardous field wiring and safe control wiring circuits |
| Terminal Conductive Clamp Contacts |
Nickel-Plated Copper Alloy |
Anti-oxidation low-resistance clamping structure, vibration-resistant anti-loosening screw lock design |
| Galvanic Isolation Signal Transformer |
Laminated Silicon Steel Core + Epoxy Full Encapsulation |
High-voltage isolation core that blocks cross-circuit noise and dangerous energy transfer to hazardous zones |
| Collective Fault Monitoring Micro Relay |
Silver Alloy Contact Coil Relay |
Potential-free fault signal output for remote cabinet diagnostic alarm and PLC status feedback |
| Internal Signal Conditioning PCB Board |
High-Tg FR4 Flame-Retardant Printed Circuit Board |
Dual independent NAMUR amplifier channels, dedicated wire-break fault detection logic circuits |
| Intrinsic Safety Energy Limiting Components |
High-Stability Metal Oxide Film Resistors |
Precision current/voltage limiting components to maintain Ex ia intrinsic safety classification |
| Internal Circuit Potting Compound |
Silicone-Free Epoxy Resin Encapsulant |
Full encapsulation for vibration, dust and moisture protection of critical isolation safety circuits |
| DIN Rail Quick Mount Snap Clip |
Tempered Spring Galvanized Carbon Steel |
Fast snap-on rail installation, anti-slip lock for high-vibration industrial cabinet environments |
| Transparent Terminal Safety Cover |
PP Polypropylene Plastic |
Physical touch barrier to prevent accidental contact with live wiring terminals during maintenance |
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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