World Class Terminal Block Solutions. Electro-Matic offers channel mounted 300V, 600V, High Density and IEC type terminals. Channel mounting type terminal blocks are available in eight different styles – six styles in the 600 volt series and two in the 300 volt series. Their EMM IEC type terminals are a “Straight Up” match to most popular styles. Founded in 1969 with a simple goal to be a leader in the supply of high technology automation components and services, Electro-Matic has grown with its customers, rapidly changing to meet new product requirements utilizing the most innovative technologies. From their corporate offices in Farmington Hills, Michigan, they serve and support industrial and commercial customers throughout the United States, Canada, Mexico and Europe.