Description Generator Overview Four industrial generator sets are listed, each with make, model, year, hours, and remarks. Unit 1: Caterpillar 3412 Rated at 900 kVA. Year of manufacture: 2006. Operating hours: 12,800. Supersilenced enclosure. Unit 2: Caterpillar 3412 Rated at 1000 kVA. Year of manufacture: 1997. Operating hours: 200. Open set, rebuilt. Unit 3: Caterpillar 3508 Rated at 1000 kVA. Year of manufacture: 1991. Operating hours: 8,200. Open set. Unit 4: Wartsila V16BZSHR Rated at 1200 kVA. Year of manufacture: 1981. Operating hours: 1,002. Open set, 6200 V.