Schneider Electric SR3XT43BD Zelio Logic SR3 4 I/O Analogue Extension Module 24 V DC PLC I/O Module

The Schneider Electric SR3XT43BD is an analogue I/O extension module for the Zelio Logic SR3 range, supplied at 24 V DC with 2 analogue inputs (0–10 V, 0–20 mA or Pt100) and 2 analogue outputs (0–10 V). It mounts on the same DIN rail as a base smart relay to add closed-loop analogue signal handling, such as temperature or level monitoring, to the automation system.

Technical Specifications

Certifications & Standards

• UL
• CSA
• GOST
• C-tick
• IEC 61000-4-2
• IEC 61000-4-3
• IEC 61000-4-4
• IEC 61000-4-5
• IEC 61000-4-11
• IEC 61000-4-12
• IEC 60068-2-6
• IEC 60068-2-27

Selection Notes

The SR3XT43BD is the only Zelio Logic SR3 extension module with analogue outputs, so it is the module to add when the application needs a 0–10 V control signal out — for example driving a valve positioner or a VFD speed reference — rather than just more discrete points. Its Pt100 input option gives a direct 3-wire RTD connection for temperature loops without a separate signal converter, unlike the discrete-only SR3XT61BD or SR3XT141BD.