Description
Pepperl+Fuchs KFD2-STC5-EX1 SMART Transmitter Power Supply
The Pepperl+Fuchs KFD2-STC5-EX1 is a specialized isolated barrier designed for intrinsic safety applications. It serves as a robust power supply for 2-wire and 3-wire SMART transmitters, ensuring that sensitive control systems are protected from energy surges in hazardous areas while maintaining high-fidelity signal integrity.
Engineered for versatility in the field, this device supports bi-directional HART communication, allowing for seamless remote diagnostics and configuration of field devices. With a 20 mm housing and a wide operating temperature range of -20 to 70 °C, it provides reliable performance in demanding industrial environments.
Key Features:
✅ Intrinsically safe for Gas (Ga, Gb, Gc), Dust (Da, Db, Dc), and Mining (Ma, Mb)
✅ SIL 2 (Safety Integrity Level) compliant according to IEC/EN 61508
✅ Supports Division 1 and Division 2 installations
✅ 1-channel analog input for 4 … 20 mA signals
✅ Compatible with 2-wire and 3-wire transmitters or current sources
✅ Dual-mode control-side signal (Source or Sink mode)
✅ High-speed HART communication capability
✅ Compact 20 mm housing width for high-density DIN rail mounting
✅ Flexible power connection via terminals or Power Rail
📦 Package Options:
🔹 Single Unit: KFD2-STC5-EX1 – Standard configuration
🔹 Bulk Order: Contact us for special pricing on quantities of 5+ units
KFD2-STC5-EX1 Technical Specifications:
| Feature | Details |
|---|---|
| Product Type | SMART Transmitter Power Supply |
| Part Number | 70124109 |
| Safety Integrity Level | SIL 2 |
| Number of Channels | 1 |
| Input Signal | 4 ... 20 mA (Analog) |
| Output Signal | 4 ... 20 mA (Source or Sink) |
| Power Supply | 24 VDC |
| Housing Width | 20 mm |
| Connection Type | Screw Terminals |
| Hazardous Area Ratings | Div. 1, Div. 2; Zone 0, 1, 2 +1 |
| Operating Temp | -20 ... 70 °C (-4 ... 158 °F) |
| Country of Origin | Vietnam |
| Weight | 135 grams |
Certifications & Compliance:
🔗 EU-Declaration-of-conformity-1
🔗 UK-Declaration-of-conformity
🔗 SIL 2 – Certified for use in safety-instrumented systems
🔗 Download Datasheet
🔗 Instruction Manual
Applications of KFD2-STC5-EX1:
🔹 Oil & Gas
🔹 Chemical Plants
🔹 Mining
🔹 Labs
🔹 Manufacturing
What’s in the Box?
📦 1x KFD2-STC5-EX1 Transmitter Power Supply
📦 1x Documentation Kit
Ordering & Shipping Details
📦 Lead Time: 1 – 2 Weeks
📍 Shipping Terms: 3 days ground shipment
💳 Payment Options: Credit card, PayPal, Net30
FAQs:
What is the difference between source and sink mode on this device?
The control-side signal can be configured to act as a current source (supplying power to the PLC/DCS) or a current sink (the PLC/DCS supplies the power).
Can this device be mounted directly in a Division 2 area?
Yes, the KFD2-STC5-EX1 is suitable for mounting in Division 2 and Gc (Zone 2) environments
Does this barrier support HART communication?
Yes, it is designed for SMART transmitter power supply and supports bi-directional HART communication.
What is the maximum ambient temperature for operation?
This device is rated for operation in temperatures ranging from -20 to 70 °C (-4 to 158 °F).
