Check the listing for details. Simpson 01314 Current Transformer 10A Pri. Input 50/5000Hz. Color: Black, Gold, Green, Yellow, Condition: New – Open box, Made in USA. Listed at 35.99 USD. This is a professional eBay listing for a Simpson Transformer, Model 01314. Designed for use with rectifier type AC meters and relays, this robust unit features a primary input rating of 10.0 Amps and operates across a wide line frequency range of 50 to 5000 Hz. The transformer has a maximum rated circuit to ground voltage of 750V. Its secondary output is intended for meter lines with a minimum impedance of 10V-1000 Ω/V. Constructed in Elgin, Illinois, USA, this transformer features a durable design with clearly labeled primary line input and secondary meter line screw terminals. Ideal for industrial and electrical applications requiring accurate current measurement and relay triggering. Please refer to images for exact condition and detailed specifications.