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Copy| Product Name | Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 | LOGO! 12/24 V Relay Base Modules |
| Item NO. | 2927534 |
| Weight | 0.1 kg = 0.2205 lb = 3.5274 oz |
| Category | SIEMENS |
| Brand | SIEMENS |
| Creation Time | 2026-10-27 |
Siemens · Industrial Automation
Display, displayless and preceding-generation 12/24 V relay base-module records.
Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 are LOGO! 12/24 V DC relay base modules with eight digital inputs and four relay outputs. The 1MD08 records include the local display and keys; the 2MD08-0BA2 is the displayless RCEo execution for projects that use remote or external operation.
Analog capability is built into Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 through four input positions that can be used as 0 to 10 V analog inputs when configured accordingly. Their relay outputs keep load potential isolated from the input supply, but the selected load and inrush current must remain within the contact limits.
Generation is the important boundary in Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1. The -0BA2 records belong to LOGO! generation 8.4 with its current software features, while -0BA1 belongs to generation 8.3; project transfer, firmware functions and display availability must be checked against the exact article rather than the common 12/24RCE family name.
| Technical Item | 6ED1052-1MD08-0BA2 | 6ED1052-2MD08-0BA2 | 6ED1052-1MD08-0BA1 |
|---|---|---|---|
| Brand | Siemens | ||
| Product Name | LOGO! 12/24RCE | LOGO! 12/24RCEo | LOGO! 12/24RCE |
| Country | Germany | ||
| Generation | LOGO! 8.4 | LOGO! 8.4 | LOGO! 8.3 |
| Local Display / Keys | Yes | No | Yes |
| Supply | 12/24 V DC; permitted 10.8 to 28.8 V DC | ||
| Digital Inputs | 8; four can serve as 0–10 V AI | ||
| Relay Outputs | 4 | ||
| Program Capacity | 400 function blocks | ||
| Ethernet | Integrated | ||
| Programming Software | LOGO! Soft Comfort V8.4 or later | LOGO! Soft Comfort V8.4 or later | LOGO! Soft Comfort V8.3-compatible project |
| No-Load Current | 50 to 165 mA at 12 V; 25 to 90 mA at 24 V | ||
| Power Loss | 0.6 to 2.0 W at 12 V; 0.6 to 2.2 W at 24 V | ||
| RTC Backup / Accuracy | Typically 20 days; ±2 s/day | ||
| High-Speed Inputs | I3 to I6; up to 5 kHz | ||
| Analog Input Characteristics | I1, I2, I7, I8; 0 to 10 V; 80 kΩ; ±1.5% full scale | ||
| Relay Contact Rating | Up to 10 A per relay; 240 V AC/DC rated | ||
| Module Width | 4 spacing units | ||
| Dimensions (W × H × D) | 71.5 × 90 × 60 mm | 71.5 × 90 × 58 mm | 71.5 × 90 × 60 mm |
| Approximate Weight | 240 g | 200 g | 240 g |
Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 connect local I/O, Ethernet services and optional expansion modules, but generation and display execution determine how the installation is operated and maintained.
Assign the IP settings and network role for Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 in the intended LOGO! project. A family name is not sufficient when the 8.4 and 8.3 records expose different software features.
Siemens 6ED1052-2MD08-0BA2 has no local display, so commissioning depends on the engineering connection or an external operator device. Siemens 6ED1052-1MD08-0BA2 / 6ED1052-1MD08-0BA1 also provide front-panel keys and display.
When expansion modules follow Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1, verify the supported generation, power and order in the project before connecting the expansion interface.
Commission Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 by fixing the exact hardware generation first, then assigning I/O roles and finally proving the network and relay load behavior.
Create the project with the exact Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 record. This preserves 8.4 versus 8.3 functions and display/no-display behavior.
For inputs that will measure 0 to 10 V on Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1, wire the common reference and configure them as analog points before building threshold logic.
Download the project, exercise every used relay of Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 and observe the actual load. Include inrush current in the test instead of checking only an unloaded contact.
For 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1, siemens 6ED1052-1MD08-0BA2 / 6ED1052-1MD08-0BA1 belong to different LOGO! generations. Check whether the 8.4 project uses functions unavailable in the 8.3 record, then select compatible hardware instead of forcing a family-level substitution.
For 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1, connect Siemens 6ED1052-2MD08-0BA2 through its documented engineering/network path, verify IP settings and download the exact 8.4 project. Use software or an external operator device for status that would otherwise appear on local keys and display.
For 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1, confirm that the selected input is one of the mixed-use 0 to 10 V points, that its reference shares the documented M potential and that the project treats it as analog. Measuring voltage at an ordinary digital-only input will not create an analog value.
Compare the actual load and inrush current with the relay limits of Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1. Lamps, contactors and motors can stress a contact differently from their steady-state current.
For 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1, they share the 8.4 family and core I/O, but Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 differ in local display execution. Confirm the project does not depend on local keys or display pages before reuse.
Save the exact Siemens 6ED1052-1MD08-0BA2 / 6ED1052-2MD08-0BA2 / 6ED1052-1MD08-0BA1 article, generation, program, network settings, passwords, I/O assignments, expansion order and relay-load schedule.
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