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- Manufacturer: Honeywell 
-    Part Number: KFD2-SCD2-EX1.LK 
- Condition:New with Original Package 
- Product Type: Pepperl+Fuchs HART-Compatible Current Driver 
-   Country of Origin: USA 
- Payment:T/T, Western Union 
- Shipping port: Xiamen 
- Warranty: 12 months 
Product Description
The Pepperl+Fuchs KFD2-SCD2-EX1.LK is a 1-channel SMART current driver and isolated barrier, engineered for intrinsically safe analog output applications in hazardous areas. It delivers a precise 4–20 mA current output to drive SMART I/P converters, electrical valves, and positioners, ensuring reliable operation in critical process automation environments.
This module supports HART-IP communication, allowing bi-directional digital signals to be superimposed on the analog output. Moreover, it features line fault detection (LFD), test sockets on terminals, and galvanic isolation to guarantee both safety and accuracy. Its compact DIN rail design simplifies integration into control panels, while SIL 2 (SC 3) certification confirms compliance with IEC/EN 61508 standards.
Technical Specifications
| Specification | Details | 
|---|---|
| Model Number | KFD2-SCD2-EX1.LK | 
| Function | SMART Current Driver / Isolated Barrier | 
| Channels | 1-channel | 
| Input Type | Analog signal from control system | 
| Output Type | Current output (4–20 mA) to hazardous-area devices | 
| Load Resistance | Up to 650 Ω | 
| Power Supply | 24 V DC via Power Rail | 
| HART Communication | Supported (bi-directional) | 
| Line Fault Detection | Yes (open/short circuit monitoring) | 
| Accuracy | ±0.1% | 
| Isolation | Galvanic isolation between input, output, and power | 
| Mounting Type | DIN rail | 
| Operating Temperature | –20°C to +60°C | 
| Safety Compliance | SIL 2 (SC 3) per IEC/EN 61508 | 
| Certifications | ATEX, IECEx, FM, CSA | 
| Dimensions (W × H × D) | 20 mm × 124 mm × 115 mm | 
| Weight | 0.15 kg | 
FAQ
Q1: What type of devices can KFD2-SCD2-EX1.LK drive?
It drives SMART I/P converters, electrical valves, and positioners in hazardous areas.
Q2: Does it support digital communication?
Yes, it supports HART-IP for bi-directional digital signals.
Q3: What is the safety certification of this module?
It is certified SIL 2 (SC 3) according to IEC/EN 61508 standards.
Q4: How is it installed?
The module is DIN rail mountable and includes terminals with test sockets.
Q5: Does it include fault detection?
Yes, line fault detection (LFD) monitors open and short circuits for safety.
