Siemens · Industrial equipment
Siemens LOGO! DM8 12/24R Expansion Module (6ED1055-1MB00-0BA2)
Siemens LOGO! DM8 12/24R Expansion Module (6ED1055-1MB00-0BA2) is a compact digital I/O expansion module for LOGO! 8 controllers. Operating on 12/24 V DC, it provides 4 digital inputs and 4 relay outputs, enabling flexible low-voltage I/O expansion for industrial and building automation systems across the UAE.
Product details
The Siemens LOGO! DM8 12/24R Expansion Module (6ED1055-1MB00-0BA2) is designed to extend the digital input and output capabilities of Siemens LOGO! 8 basic units in low-voltage automation systems. Supporting 12 V and 24 V DC power supply, this expansion module is well suited for control applications that require relay-based switching and compact panel design.
The module features 4 digital inputs designed for DC signal processing and 4 relay outputs capable of switching both resistive and inductive loads. With relay switching capacity of up to 5 A for resistive loads and 3 A for inductive loads, it allows direct control of contactors, lamps, solenoid valves, and other industrial devices without additional interface relays.
The LOGO! DM8 12/24R supports reliable signal acquisition with fast response times and stable switching behavior. Its compact DIN-rail mounting design (2 spacing units wide) ensures efficient use of space in control cabinets and simplifies system expansion for both new installations and retrofit projects.
As a trusted supplier of Siemens automation solutions,
Bardia Control Systems
supplies original Siemens LOGO! expansion modules with technical support and fast delivery across the UAE. Compatible controllers and accessories are available in our
Siemens Automation Technology
range.
For independent technical background on PLC-based automation systems and I/O expansion concepts, refer to the following industry article:
What Is a PLC and How Does It Work?
Technical Specifications
| Brand | Siemens |
| Product Family | LOGO! 8 Expansion Modules |
| Model | LOGO! DM8 12/24R |
| Part Number | 6ED1055-1MB00-0BA2 |
| Product Type | Digital I/O Expansion Module |
| Mounting Type | 35 mm DIN rail, 2 spacing units wide |
| Supply Voltage (DC) | 12 V / 24 V DC |
| Permissible Voltage Range | 10.8 – 28.8 V DC |
| Digital Inputs | 4 DI (DC) |
| Input Voltage “0” | < 5 V DC |
| Input Voltage “1” | > 8.5 V DC |
| Input Current (Signal 0) | Max. 0.88 mA |
| Input Current (Signal 1) | Typ. 1.5 mA |
| Input Delay (0 → 1) | Max. 1.5 ms |
| Input Delay (1 → 0) | Max. 1.5 ms |
| Digital Outputs | 4 DO (Relay) |
| Relay Output Current | 5 A (resistive), 3 A (inductive) |
| Minimum Load Current | 100 mA |
| Short-Circuit Protection | No |
| Switching Frequency (Resistive) | Max. 2 Hz |
| Switching Frequency (Inductive) | Max. 0.5 Hz |
| Mechanical Switching Frequency | Max. 10 Hz |
| Degree of Protection | IP20 |
| Operating Temperature | 0 °C to +55 °C (ES03+: -20 °C) |
| Dimensions (W × H × D) | 35.5 × 90 × 58 mm |
| Standards & Approvals | CE, CSA, UL, FM, Marine |
| Standards Compliance | IEC 61131, VDE 0631 |
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