ABB – AT1e-R (2CSM231215R0601) – 24 h Electro-Mechanical DIN‑Rail Time Switch

The ABB AT1e‑R (2CSM231215R0601) is a compact daily electro-mechanical time switch with a 15-minute minimum interval and lithium battery backup (“Reserve”). Its DIN-rail format delivers reliable automated control of lighting, HVAC, pumps, and other loads while retaining your settings during power interruptions.