What it is and what fits
The Siemens 6ED1052-1FB08-0BA1 is the current-generation LOGO! 230RCE base unit with an integrated display, running LOGO! Soft Comfort V8.3 firmware. It handles 8 digital inputs and 4 relay outputs, rated for inductive loads up to 3 A and resistive loads up to 10 A per channel. Operating range covers -40 to 70 °C with 480 h of power reserve for the real-time clock. Memory capacity is 400 function-specific blocks, enough for moderate automation tasks like pump sequencing, lighting control, or small conveyor logic. The module is modularly expandable via the LOGO! bus and includes an Ethernet port with integrated web server, data logging, and cloud connectivity support.
How it compares to the 6ED1052-1FB00-0BA7
The most common alternative is the 6ED1052-1FB00-0BA7 — same I/O count, same supply voltage, same approvals. Two differences drive the choice: the 0BA7 is 6 spacing units wide (107 mm) vs 4 spacing units (71.5 mm) on this module, and its temperature range is 0 to 55 °C. If panel width or ambient cold extremes are constraints, the 1FB08-0BA1 fits where the 0BA7 will not. Memory on the 0BA7 is 333 blocks; the 1FB08-0BA1 offers 400 — a real delta if the program approaches the 333-block ceiling. Both retain the 480 h power reserve.
Compliance and approvals
Carries CE, UL, CSA, FM, and marine approvals with EN 55011 Class B for residential interference limits. External fusing required for relay outputs.