NORWALK - Pratt & Whitney union members voted to approve a new contract this morning offered by the company.

The jet engine maker says the three-year contract offers annual wage increases of 2.5 percent, no medical cost increases until 2015 and no layoffs for a year for material handlers. However, some material handling work will be done by a third party, resulting in job cuts in 2015.

A company spokesman says the change impacts 140 employees, and they have been offered a voluntary separation package. He says they will also work to train and place those who do not take the offer.

The contract takes effect tomorrow and covers about 2,800 workers.