2CSM222531R1000

The ABB DW1 Digital Time Switch (2CSM222531R1000) is a single-channel digital time switch designed for automatic control of electrical loads according to a programmable weekly schedule. It supports daily and weekly switching programs and is suitable for applications such as lighting control, ventilation systems, heating equipment, and other electrical loads requiring scheduled operation.

The device features a digital display with text guidance, manual switching, automatic summer/winter time adjustment, holiday programming, impulse and cycle programs, and random switching functionality. It includes a potential-free changeover contact for controlling compatible external circuits and is designed for installation on a standard DIN rail inside electrical distribution boards. With a compact two-module design and IP20 protection, the ABB DW1 provides convenient and flexible time-based switching for residential, commercial, and industrial installations.