2CSM222521R1000

The ABB DW2 Digital Time Switch (2CSM222521R1000) is a two-channel digital time switch designed for automatic control of electrical loads according to programmable weekly schedules. Operating on a 230 V AC supply, it enables independent time-based switching of two circuits, making it suitable for lighting systems, ventilation, heating, pumps and other electrical equipment requiring scheduled operation.

The device features a digital display with text guidance, a weekly programming function, manual switching, holiday programming, impulse and cycle programs, random switching, and automatic summer/winter time adjustment. It incorporates a power-reserve function to preserve time and programmed settings during temporary power interruptions, along with potential-free changeover contacts for controlling compatible external circuits. Its compact, two-module design allows installation on a standard 35 mm DIN rail inside electrical distribution boards. The ABB DW2 provides a flexible solution for residential, commercial and industrial automation applications.