Caterpillar introduces two new mobile diesel generator sets meeting Tier 4i emissions regulations. The XQ200, powered by the Cat C7.1 engine, is rated for prime operation at 182 kW; the XQ350 (pictured), powered by the Cat C13 engine, is rated for prime operation at 320 kW. Equipped with the new EMCP 4.2 control panel, both models feature a user-friendly interface and auto-configuration of key performance parameters when voltage or frequency changes are required. The system senses changes and adjusts the parameters for optimum performance. The units are in sound-attenuated containers, reducing noise while still maintaining the ambient and altitude performance at all ratings.