AutomationDirect has added Block CT and USTE series open core control transformers for stepping down voltages from 208-600V AC. The Block CT series is made in the U.S. and offers a rugged design specifically engineered for isolation, lighting or signaling systems. It is available with a 240/480 or 600V AC primary and a 24 or 120V AC secondary. Ratings range from 50 to 2500VA, and fused versions are available. Available in ratings from 40 to 3200VA, these transformers feature low inrush current, tool-free push-in wire terminals and 13 jumper-selectable primary inputs.