Product Description
The KFD2-SH-EX1.T is a DIN-rail mounted, intrinsically safe interface barrier (also commonly known as a galvanic isolator or signal conditioner) manufactured by Pepperl+Fuchs. Its primary purpose is to ensure safety in hazardous areas by limiting the energy (voltage and current) that can reach potentially explosive atmospheres.It is designed to protect temperature sensors, specifically Resistance Temperature Detectors (RTDs), connected to the hazardous area.

Key Features
- Application: Interfaces and protects 2-wire, 3-wire, or 4-wire RTD sensors (e.g., Pt100, Pt500, Pt1000, Ni100, Cu10) located in hazardous areas.
- Safety Certification: Certified according to ATEX, IECEx, and UKCA standards for intrinsic safety (Ex i). It allows connection of equipment from Zone 0/Division 1 to the safe area (Zone 2/Division 2 or non-hazardous area).
- Signal Processing: Converts the resistance value of the RTD into a standardized, linearized 4...20 mA output signal. This analog signal is proportional to the measured temperature and is suitable for connection to control systems, PLCs, or indicators in the safe area.
- Input/Output Isolation: Provides galvanic isolation (typically 1500 V AC) between the input circuit (hazardous area sensor side), the output circuit (safe area control system side), and the power supply. This prevents ground loops, protects connected equipment from voltage transients, and eliminates noise.
Technical Specifications
| Model Number | KFD2-SH-EX1.T |
| Input Type | 2-, 3-, or 4-wire RTD (e.g., Pt100, Pt500, Ni100) |
| Output Signal | 4...20 mA (Linearized, 2-wire) |
| Power Supply | 20...253 V AC/DC or 19.2...30 V DC (Ordering variant dependent) |
| Intrinsic Safety | Yes (ATEX, IECEx, UKCA Certified) |
| Isolation | 1500 V AC (Input/Output/Power Supply) |

About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL and EMERSON to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Asked Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.