Pepperl+Fuchs KFD2-STC5-Ex1.20 | SMART Transmitter Power Supply,

Pepperl+Fuchs KFD2-STC5-Ex1.20 | 1-Channel SMART Transmitter Power Supply

Overview

The KFD2-STC5-Ex1.20 by Pepperl+Fuchs is a 1-channel isolated barrier and transmitter power supply designed to interface with SMART 2-wire transmitters or current sources located in hazardous areas. It delivers a 4–20 mA active output and allows for bidirectional HART communication with field instruments.

This device is SIL 2 certified according to IEC/EN 61508, offering high reliability and functional safety in process control systems, with galvanic isolation, fault monitoring, and compact DIN rail mounting.

Key Features

• 1 Channel SMART Transmitter Power Supply

• Input: 2-wire transmitters or current sources in hazardous area

• Output: 4–20 mA active (safe area)

• HART Compatible: Supports digital communication

• SIL 2 Certified (SC 3) – According to IEC/EN 61508

• Power Supply: 24 V DC (20–30 V range)

• 3-Way Galvanic Isolation – Input / Output / Power

• Line Fault Detection: Short/open circuit monitoring

• Mounting: DIN rail, 20 mm housing

• LED Indicators: Status and diagnostics

Technical Specifications

• Model: KFD2-STC5-Ex1.20

• Input: 4–20 mA from SMART transmitter or current source

• Output: Active 4–20 mA

• Supply Voltage: 20 to 30 V DC

• Current Consumption: Approx. 0.9 W

• Isolation Voltage: 375 V AC

• Temperature Range: –20 °C to +60 °C

• Protection Rating: IP20

• Mounting Type: DIN rail (EN 60715)

• Certifications: ATEX, IECEx, UL, CSA, CE

• Safety Compliance: SIL 2 (Systematic Capability 3)

Applications

• Process Automation – Signal interface from Ex zone transmitters

• Oil & Gas – Safe and reliable analog signal transmission

• Water & Wastewater – SMART integration with monitoring systems

• Pharmaceutical and Chemical – Functional safety with precise analog control

• DCS/PLC Systems – Analog input integration with HART pass-through

Why Choose the KFD2-STC5-Ex1.20?

• Compact and reliable solution for SMART transmitter interfacing

• HART-compatible for remote diagnostics and configuration

• Certified for safety-critical SIL 2 systems

• Ideal for hazardous area signal integration

Order Now

Pepperl+Fuchs KFD2-STC5-Ex1.20 is available and ready for fast global shipping. 

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply