Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in the Registration Statement (Form S-8) of ABB Ltd pertaining to the Baldor Electric Company Profit Sharing and Savings Plan of our reports dated March 17, 2011, with respect to the consolidated financial statements of ABB Ltd and the effectiveness of internal control over financial reporting of ABB Ltd, included in its Annual Report (Form 20-F) for the year ended December 31, 2010, filed with the Securities and Exchange Commission.
/s/ Ernst & Young AG
Zürich, Switzerland
February 8, 2012