Siemens 6ES7193-0CB20-0XA0 SIMATIC DP TB2-4/DC Terminal Block

TB2-4/DC connection base for 235 mm ET 200B digital electronic modules with four-tier screw terminals

Product Overview

Siemens 6ES7193-0CB20-0XA0 is a SIMATIC DP TB2-4/DC terminal block for the ET 200B distributed I/O system. Siemens documentation identifies the exact model for digital electronic submodules, using a four-wire, four-tier screw-terminal arrangement and a 235 mm module width. The terminal base provides the mechanical mounting, field-wiring and internal connection interface required by the matching ET 200B electronic block.

Commercial Status

Verified Technical Data

System Fit and Applications

This terminal block supports field wiring and electronic-module installation in existing SIMATIC DP ET 200B remote I/O stations. Typical use includes replacement of a damaged base, controlled maintenance of legacy PROFIBUS DP nodes and preservation of an installed four-wire wiring architecture.

Application Boundaries

The 6ES7193-0CB20-0XA0 designation identifies the TB2-4/DC four-tier screw-terminal version. It should not be substituted with TB2/DC three-tier bases, TB4 spring-terminal versions, 160 mm terminal blocks or a different ET 200 family without a documented engineering review.

Compatibility and Procurement Checks

• Match the complete order number 6ES7193-0CB20-0XA0, including the 0XA0 suffix.
• Confirm that the installed station is SIMATIC DP ET 200B and uses the 235 mm digital electronic-module format.
• Verify the TB2-4/DC four-tier screw-terminal wiring arrangement rather than a three-tier or spring-terminal variant.
• Check the 24 V DC supply, terminal numbering, electronic-module width and PROFIBUS DP station drawings.
• Compare the original label, connector condition and field-wire schedule before replacement.

Lifecycle Note

The available Siemens data sheet identifies 6ES7193-0CB20-0XA0 as SPARE PART. The reviewed Siemens manual and catalog do not state an Active, Classic, Phase Out Started, Product Cancellation, Obsolete or Discontinued lifecycle category for this exact suffix. Current commercial availability should therefore be verified separately.

Frequently Asked Questions

Verify 6ES7193-0CB20-0XA0 Before Procurement

Contact Stockoems for supply verification, compatibility review, warranty terms and worldwide delivery coordination.

Email: sales6@apterpower.com  |  WhatsApp: +86 181 5988 9985