Operating frequencies range from 50 to 400 Hz. The transformers have a primary resistance of .25 mΩ (maximum) with a secondary resistance of 21 Ω (maximum). Each model includes UL Recognized Class 130 (B) insulation. Custom designs for other current ranges or ratios are available with a 1,000-piece minimum order. Optional 1/4in. quick-connect terminals keep high current off printed-circuit boards and simplify connections.

Foster Transformer, 3820 Colerain Ave., Cincinnati, OH 45223, (800) 963-9799, foster-transformer.com/current.html