Pepperl+Fuchs KFD2-VR4-Ex126

The channel-isolated voltage repeater is designed for intrinsically safe applications in hazardous areas (such as Exia/ExnA).

Key Technical Specifications

• Power Supply: 24 V DC (Power rail), rated 19…30 V DC, power consumption ≈ 1.2 W (dissipated) / 1.6 W (consumed).
• Input: Analog voltage 0 V … ‑20 V, input impedance 10 kΩ, compatible with 2‑wire or 3‑wire sensors.
• Output: Analog voltage –20 V … 0 V, output current >10 mA (‑21 V) / >20 mA (‑18 V) etc., providing a floating output.
• Transmission Characteristics: Bandwidth 10 kHz (‑0.1 dB) / 20 kHz (‑1 dB), delay 7.1 ± 0.3 µs.
• Safety Rating: SIL 2 (IEC 61508), certified to IEC 61508, EN 60079‑0/11/15, EN 61326‑1 and other directives; holds ATEX, IECEx, UL certifications (Ex ia Ga IIC, Ex ia Da IIIC, etc.).
• Protection & Dimensions: IP20, mechanical size ≈ 2.0 × 11.9 × 11.5 cm, weight 0.13 kg, DIN‑35 mm rail‑mountable.
• Operating Environment: –20 °C … 60 °C, suitable for high‑ or low‑temperature industrial sites.

Safety‑Feature Highlights

1. Full Electrical Isolation: Uses isolation transformers, fuses, Zener diodes, etc., to achieve complete separation between hazardous and safe zones, preventing dangerous energy leakage.
2. Energy Limitation: Internal current‑limiting and fuse elements restrict the power delivered to the hazardous zone, meeting intrinsic‑safety requirements.
3. Fault Detection & Diagnostics: Supports FMEDA‑based fault‑mode detection, diagnostics, and self‑test, complying with SIL 2 reliability standards.
4. Safe‑State Monitoring: In case of short‑circuit, open‑circuit, or internal failure, the device automatically switches to a safe (zero‑voltage) output, ensuring downstream systems are not compromised.
5. Compliance Certifications: Holds TÜV, INMETRO, EU conformity declarations and other certifications, confirming adherence to relevant safety standards and directives.

Typical Application Scenarios

• Safe power and signal isolation for vibration, displacement, or acceleration sensors in hazardous zones (Zone 0/1/2).
• Analog voltage signal transmission requiring SIL 2 functional safety level in industrial process‑control systems.
• Oil & gas, petrochemical, metallurgy, machinery manufacturing, and other high‑risk environments needing safe monitoring and control.
• Any field instrumentation or monitoring system that must meet ATEX, IECEx, UL, and similar explosion‑protection certifications.

Sales of the brand:

ABB、EPRO、GE、FOXBORO、Schneider、Rexroth、Honeywell、Bently、YASKAWA other global DCS system and PLC system, servo system of famous industrial brand.

☀️Tara(Sales Director)

?Tel: + 86-13806028623

?Whatsapp:+86-13806028623

?Email: ydf8801@163.com

?️Ship to you via DHL/TNT/UPS/EMS/Fedex

?Product Condition: One-year warranty

Company Overview

Main Products

We specialize in supplying original imported spare parts for DCS, PLC, robotics, and large servo systems from leading global brands, including:

• FOXBORO | EMERSON | TRICONEX | XYCOM | BENTLY
• ROCKWELL | ABB | GE | Aen-Brady | YOKOGAWA
• HONEYWELL | RELIANCE | SCHNEIDER | MODICON
• Westinghouse | WOODWARD | Motorola | Rexroth | SEW

Our inventory includes authentic, brand-new components, including hard-to-find discontinued parts, ensuring reliable solutions for industrial automation needs.

Quick delivery of spot goods and quality assurance – your trusted purchasing partner!

? Spot inventory, same day shipment

All products are in sufficient stock reserve. After you place an order, we will arrange shipment on the same day to minimize waiting time and help your project progress quickly.

? Flexible payment, easy transaction
Support multiple payment methods, including mainstream settlement methods such as T/T, which are safe and convenient, meet the needs of different customers, and make cross-border transactions more worry free.

?️ One year warranty, worry free after-sales service
We offer a one-year warranty service for all products! If there are any quality issues, we will provide you with professional after-sales support as soon as possible and provide full protection throughout the process.

? Global express delivery, secure delivery
We have deep cooperation with well-known domestic and foreign logistics companies such as SF Express, DHL, FEDEX, etc., to ensure that every shipment can be safely, timely, and efficiently delivered, allowing you to receive your goods without worry.

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You can contact us anytime and anywhere through WeChat, Skype, WhatsApp, LINE, or email. Our professional team will be available 24 hours a day to answer your questions and provide attentive service.
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Contact us immediately to embark on a new experience of efficient procurement! ?✨

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