Power management company Eaton Corporation will acquire Irish electrical equipment supplier Cooper Industries in a cash and stock deal valued at $11.8 billion.

Cooper shareholders will receive $39.15 in cash and 0.77479 shares of the combined company, equal to $72 per Cooper share. When the deal closes, expected in the second half of 2012, Eaton shareholders will own 73 percent of the combined company, with Cooper shareholders holding the remaining 27 percent.