Model Explanation (Basic Section)D661: Series Code (Integrated Electronics, 24VD ...

Model Explanation (Basic Section)D661: Series Code (Integrated Electronics, 24VD ...

Model Explanation (Basic Section)D661: Series (Integrated Electronics, 24VDC, IS ...

Model ExplanationD661: Series code (Integrated electronics, 24VDC, ISO 4401-05 i ...

Model Code Explanation (D661-4624)D661: Series (ISO 4401‑05 mounting, integrated ...

Model Code Explanation (D661-4594C)D661: Series (ISO 4401‑05 mounting, integrate ...