Siemens 6ED1055-1FB00-0BA2 LOGO! DM8 230R Expansion Module 230V 4DI/4DO Relay

The Siemens 6ED1055-1FB00-0BA2 is the LOGO! DM8 230R digital expansion module for LOGO! 8 logic modules, providing 4 digital inputs and 4 relay digital outputs. It operates on a 115/230V AC/DC supply and extends the I/O capacity of a LOGO! 8 system by 2 module widths on a 35 mm DIN rail. Relay outputs are rated at 5A resistive, making this module suitable for direct switching of lighting and small load circuits.

Technical specifications:

• MLFB: 6ED1055-1FB00-0BA2
• Manufacturer: Siemens
• Product line: LOGO!
• Module type: Digital expansion module (DM8 230R)
• Compatible with: LOGO! 8
• Supply voltage rated: 115V AC/DC, 230V AC/DC
• Supply voltage range: 100-253V DC; 47-63 Hz AC
• Digital inputs: 4, AC/DC type
• Signal "0" threshold: <40V AC / <30V DC
• Signal "1" threshold: >79V AC / >79V DC
• Input delay (0 to 1): max. 40 ms
• Input delay (1 to 0): max. 75 ms
• Digital outputs: 4 relay outputs
• Output current rated: 5A (resistive), 3A (inductive)
• Minimum load current: 100 mA
• Lamp load switching: max. 1000W at 230V AC
• Switching frequency (resistive): max. 2 Hz
• Switching frequency (inductive): max. 0.5 Hz
• Mounting: 35 mm DIN rail, 2 spacing units wide
• Dimensions (WxHxD): 35.5 x 90 x 58 mm
• IP degree of protection: IP20
• Operating temperature: -20°C to 55°C, no condensation
• Certifications: CE, UL, CSA, FM, Marine
• EMC: EN 55011 Limit Class B

Features and benefits:

• Expands LOGO! 8 with 4 additional digital inputs and 4 relay outputs in a single 2 MW module
• Wide supply voltage range (100-253V DC, 115/230V AC) accommodates varying grid conditions
• Relay outputs rated at 5A resistive allow direct control of lighting and small actuator loads
• Class B radio interference emission rating permits installation in residential environments
• Marine and FM approvals enable use in demanding and hazardous location applications
• Developed in accordance with IEC 61131 and VDE 0631

Applications:

• Expanding digital I/O in LOGO! 8 automation and control systems
• Direct relay switching of lighting circuits, pumps, and small motors at 230V AC
• Building automation tasks requiring additional discrete input and output points
• Industrial control panels operating in environments from -20°C to 55°C
• Installations requiring hazardous location or marine-certified expansion modules

Compliant with IEC 61131, VDE 0631, and EN 55011. Part of the Siemens LOGO! range.

Also known as: Siemens 6ED1055-1FB00-0BA2, LOGO! DM8 230R, LOGO! 8 digital expansion module.