Subsequent Event (Notes)

12 Months Ended

Sep. 30, 2012

Subsequent Events [Abstract]

Subsequent Events [Text Block]

Subsequent Event

In October 2012, we acquired certain assets of the medium voltage drives business of Harbin Jiuzhou Electric Co., Ltd. (Harbin), a leading manufacturer of medium voltage drives, direct current power supplies, switch gear and wind inverters, headquartered in Harbin, China. The acquisition strengthened our presence in the Asia-Pacific motor control market by adding significant capabilities in design, engineering and manufacturing of medium voltage drive products. The preliminary purchase price of the acquisition was $84.4 million. The accounting for the Harbin acquisition was incomplete at the time we issued our financial statements. Accordingly, it is impracticable for us to make certain business combination disclosures such as the amount of goodwill and intangibles acquired and the amount of goodwill expected to be deductible for tax purposes.