Pepperl+Fuchs KCD2-STC-Ex1 One-Channel SMART Transmitter Power Supply
A 12.5 mm one-channel isolated barrier for powering two-wire SMART transmitters and transferring 4–20 mA with bidirectional communication.
Product Overview
Pepperl+Fuchs KCD2-STC-Ex1 is a one-channel isolated barrier for supplying two-wire SMART transmitters or accepting two-wire SMART current sources in hazardous-area applications.
The device transfers the analog value to the safe side and supports bidirectional superimposed digital communication. DIP switches select 4–20 mA source, 4–20 mA sink or 1–5 V output operation.
The narrow 12.5 mm housing mounts on a 35 mm DIN rail and can receive 24 V DC from the Power Rail or its supply terminals.
Performance
Intrinsic-safety separation
Interfaces the hazardous-area transmitter circuit with the safe-area control system.
SMART communication
Transfers superimposed digital communication bidirectionally across the barrier.
Power Rail integration
Uses centralized 24 V DC distribution while preserving the narrow channel density.
Technical Details
About IndustryParts
https://www.industryparts.com/Exact-model support for KCD2-STC-Ex1
IndustryParts keeps the complete KCD2-STC-Ex1 identity, requested quantity and installed-system evidence together so the proposed supply can be compared with the actual application before dispatch.
System Integration
Record the required output mode and control-system input impedance.
Wire the field, output and Power Rail or terminal supply using the documented terminal map.
Prove SMART communication and the required safe-state behavior before release.
Applications
Suffix control
Keep the Ex1 suffix; non-Ex and dual-output versions have different selection boundaries.
Mode control
Record every DIP-switch position with the loop dossier.
Acceptance
Test analog transfer, communication and hazardous-area loop verification together.
FAQ
Q01Why is the final “1” required in KCD2-STC-Ex1?
It identifies the documented one-channel Ex1 product; KCD2-STC-Ex is not the complete manufacturer model.
Q02Which output modes can KCD2-STC-Ex1 provide?
DIP switches select 4–20 mA source, 4–20 mA sink or 1–5 V source operation.
Q03What control-side information is needed for a KCD2-STC-Ex1 enquiry?
Provide the required output mode, input resistance, supply method, loop drawing and existing switch settings.
Q04Can KCD2-STC-Ex1 be chosen from the 4–20 mA range alone?
No. The hazardous-area approval, transmitter supply requirement, output mode and load must all be verified.
Q05What belongs in the KCD2-STC-Ex1 commissioning record?
Include entity verification, switch positions, loop supply margin, low/high current checks, SMART communication and final diagnostics.
