The code 1SVR440821R0000 corresponds to the CL-LDC.LDC2 logic relay module from ABB. Here are some key details:

Functionality: This is a display base module that serves as a CPU and power supply.

Input Voltage: Operates at 24 V DC.

Expandable: Supports local and remote expansions via the CL-LINK interface.

Programming: Allows for 256 rungs with 4 contacts in series plus 1 coil to be programmed.

Features: Includes 32 editable display texts, 32 week and year timers, multifunction timing relays, high-speed counters, analog value comparators, and more.

Applications: Suitable for small to medium control tasks, such as in building automation, lighting systems, and standalone control modules.