Part in hand: what you're getting
Siemens 6ED1052-2FB00-0BA2 is a LOGO! 230RCO logic module — an AC-powered controller with 8 digital inputs and 4 relay outputs, no display or keyboard. It is the off-the-shelf workhorse for small machine automation where a local HMI is not needed. 80-hour power reserve keeps the real-time clock and retentive data alive through extended outages. Each relay output handles up to 10 A on resistive loads and 3 A on inductive loads — enough for direct control of small contactors, solenoid valves, or indicator banks. External fusing is required; the module itself has no built-in short-circuit protection.
Display vs no-display: which variant fits
The closest functional sibling is 6ED1052-1FB00-0BA6 (LOGO! 230RCo with display and keyboard). Same physical footprint — 72 x 90 x 55 mm, 4TE on DIN rail. Same I/O count, same relay ratings, same approvals, same 80-hour power reserve. For a panel that calls for the display version but you have the no-display on hand, it will drop in electrically and mechanically; the only trade-off is losing the local operator panel for programming or monitoring. If your BOM specifies the no-display version, subbing in the display variant is a valid functional swap — just account for the added front-panel protrusion in your gland-plate layout. No rewiring needed.
Compliance kit for the panel
Marked UL, CSA, FM, and marine approved. Limit class B for residential areas.
Height 90 mm, depth 55 mm — typical LOGO! form factor.