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.
Mounting and wiring notes
Snaps onto standard 35 mm DIN rail. 4TE width (72 mm) leaves room for expansion modules on the rail. Height 90 mm, depth 55 mm — typical LOGO! form factor.