Acti9 timer IH. Electromechanical timers. Timer IH 24h 1c SRM, 24 hours, plug-in terminals. Switching cycle is 24 hours (daily), channels 1, width 3 TE, 96 switching segments (captive). The minimum time between 2 switching operations is 15 minutes. Manual control is possible. Time change (summer/winter) manual.