Actuant Corporation, Milwaukee, WI, has acquired BH Electronics, Munford, TN, for $30 million in cash.   ; BHE produces dashboard control panels and electronic assembly systems, primarily for the marine market. BHE generated $35 million in sales in 2006, and has 450 employees.   ; BHE will operate within Actuant's Electrical Segment. Actuant has sale of over $1.4 billion.