Siemens LOGO! DM8 6ED1055-1MB00-0BA3 Digital Expansion Module 4DI/4DO Relay 12/24V DC

The Siemens LOGO! DM8 6ED1055-1MB00-0BA3 is a digital expansion module designed for the LOGO! 8, LOGO! 8.FS4, and LOGO! 9 base modules. It provides 4 digital inputs (12/24V DC) and 4 relay outputs with a switching capacity of 10 A (resistive load), making it ideal for extending the I/O capabilities of your LOGO! system. The module is DIN rail mountable, features screw terminals for easy wiring, and offers electrical isolation for reliable operation in industrial environments.

Advantages

Expand your LOGO! system with additional digital I/O points. The relay outputs can handle higher loads, and the module is compatible with multiple LOGO! generations. Easy installation on DIN rail and simple screw terminal connections save time and effort.

Suitable for

• Industrial automation and control systems
• Building automation (lighting, HVAC, shading)
• Machine control and monitoring
• Small-scale process automation

Key specifications

• Module type: Digital expansion module
• Number of digital inputs: 4 (12V DC / 24V DC)
• Number of digital outputs: 4 (relay)
• Switching capacity: 10 A (resistive load)
• Supply voltage: 12V DC / 24V DC
• Power consumption: typ. 1.5 W
• Mounting: DIN rail 35 mm
• Protection class: IP20
• Operating temperature: 0 to 55 °C
• Storage temperature: -40 to +70 °C
• Connection: Screw terminals
• Electrical isolation: Yes
• Max. expansion modules per base: 24

Recommendations

For optimal performance, use with Siemens LOGO! 8 or LOGO! 9 base modules. Ensure proper ventilation and avoid exceeding the specified operating temperature range. The module is not suitable for safety-critical applications without additional measures.