Create fully detailed, validated and manufacturing-ready harness designs with Capital Harness Designer

By Sarah Bartash

As we announced in our blog here, our new Capital website experience brings you the most up-to-date Capital software information and support. We are pleased to feature Capital Harness Designer here in our Product Spotlight, highlighting some of the information and resources found on our new site.

Siemens Capital Software is a comprehensive suite for electrical systems engineers of automobiles, aircraft, heavy equipment and sophisticated machines. The Capital portfolio provides a holistic model based electrical distribution system (ESD) where the wire harness engineering and manufacturing tools are integrated into a seamless flow of data up- and downstream. It runs all the way from systems requirements capture through product maintenance documentation, all in concert with adjacent development and data management tools and systems

Today, most OEMs and wire harness manufacturers still use harness design and manufacturing engineering approaches that were sufficient for the simple wire harnesses of the past. These are not prepared to manage the challenges that come with increased electrical content and, for aerospace companies, increased EWIS complexity. A paradigm shift is needed to address those new challenges: the coherent digitalization of the entire development and manufacturing processes is the only way to succeed in this competitive environment, and Siemens is uniquely positioned to do just that.

Capital Harness Designer enables makers of high volume, high complexity harness to create fully detailed, validated and manufacturing- ready harness designs. Conceived from the ground up to be highly configurable, Capital Harness Designer offers harness makers new options to tailor the tool to meet their
precise needs both in terms of graphical outputs and the way designs are created and validated. In addition, rules-based change management allows change to be effectively managed, streamlining
tool flows and minimizing human error.

Automate your harness engineering and and design rule checking with Capital Harness Designer

Capital Harness Designer’s automated engineering capability calculates:

  • Manufacturing wire lengths
  • Bundle diameters
  • Optimized splice positions
  • Taping quantities
  • Harness weight

…and more! Component selection routines add wires, multicores, terminals, seals, cavity plugs, tapes, tubes, heat-shrink sleeves. and similar elements. Multiple design rule checks are then applied
ensuring the final design meets the organization’s defined best-practices.

Capital Harness Designer merges wiring, mechanical configuration and component data to create a fully detailed harness design. It also successfully covers the following key needs:

Design change management

Capital Harness Designer enables design changes to be integrated into existing harness designs, preserving details added at earlier design stages. Users create multiple “change policies” to control how Capital Harness Designer should respond to change. The system automatically assesses the design change
impact and how the changes are applied to the new harness design.

Option and variants management

In Capital Harness Designer, multiple harness variants are managed from a single parent design. The tool automatically identifies which components are assigned to which variant and compiles the manufacturing bills-of-material for each.

Configurable graphical styling

Capital Harness Designer offers a unique capability to configure multiple graphical representations. Using this, multiple diagram outputs are easily created in support of customer diagram formats, or in response to varying internal needs.

MCAD Integration and third-party data import

The power of Capital Harness Designer is extended with a number of MCAD connectors including CATIA V4, V5, Siemens NX, and more. Harness flattening capability, with auto layout and scaling further streamlines the flow.

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This article first appeared on the Siemens Digital Industries Software blog at