The Acme Electric TB81215 is a .5 kVA TB Series Open Core Coil Industrial Control Transformer is specially made to reduce supply voltages for the operation of electromagnetic devices. It is designed with high quality silicon steel lamination that provides core losses reduction.This highly efficient transformer with seriesparallel connecting links saves labor costs and wiring. It also offers you easy installation even with solid strand conductors, as the terminal blocks allow full access for ring terminals. The Acme Transformers ensure quality, reliability and years of worryfree use.bull; Previous Model Number: Acme Transformers TB81215