Siemens 24 Expansion module, 4 DI/4 DO Part number 6ED1055-1CB00-0BA2

Product Overview

Siemens LOGO! DM8 24 digital expansion module (6ED1055-1CB00-0BA2) is an I/O expansion unit designed for LOGO! 8 logic modules. It provides 4 digital inputs and 4 transistor digital outputs operating at 24 V DC, allowing small automation systems to be expanded with additional signal inputs and output switching capacity. The compact DIN-rail mounted module integrates seamlessly into LOGO! control systems for industrial and building automation.

Key Features

• Digital expansion module for LOGO! 8 controllers
• 4 digital inputs and 4 transistor outputs
• 24 V DC operating voltage
• Fast input response for accurate signal detection
• Short-circuit and overload protected outputs
• Compact DIN rail mounted design
• Two-module width for space-efficient installation

Technical Specifications

• Article Number: 6ED1055-1CB00-0BA2
• Product Family: LOGO! expansion modules
• Device Type: Digital I/O expansion module
• Supply Voltage: 24 V DC (20.4 … 28.8 V DC)
• Digital Inputs: 4
• Input Type: DC voltage inputs
• Input Delay: ≤ 1.5 ms
• Digital Outputs: 4
• Output Type: Transistor outputs
• Output Current: 0.3 A per channel
• Switching Frequency: Up to 10 Hz (resistive load)
• Protection Rating: IP20
• Dimensions: 35.5 × 90 × 58 mm
• Mounting: 35 mm DIN rail

Compliance & Certifications

• CE conformity according to applicable EU directives
• UL and CSA approved for industrial control equipment
• Designed to Siemens industrial quality and safety standards
• RoHS compliant for hazardous substance restrictions

Applications

This LOGO! digital expansion module is used to increase the number of input and output channels available to LOGO! 8 logic controllers. It is ideal for building automation, small machine control, lighting systems, pump control, alarm systems and other compact automation tasks where additional I/O points are required.