The Siemens 6ED1055-1MB00-0BA0 is a LOGO! DM8 12/24R expansion module that adds 4 digital inputs and 4 relay outputs to a LOGO! 12/24 RCE base unit. It operates on 12 or 24 V DC and mounts on a 35 mm DIN rail, occupying 2 spacing units (36 mm). Relay outputs are rated 3 A with inductive load and 5 A with resistive load, suitable for small motor starters, valves, or signal lamps. Approvals include CE, UL, CSA, FM, and Marine, covering industrial and marine panel requirements.
Siemens lists this module as current production. No last-time-buy or obsolescence notice applies. Approvals are bundled: CE, UL, CSA, FM, and Marine. That covers most industrial panel specs and simplifies documentation for compliance-bound builds.