2-way to 12-way open-type connectors in the range of 15 a, 500 v ac. The housing is made from high grade bakelite powder. Brass terminals are nickel-plated, screws and pressure plates, are made of mild steel screws and pressure plates are made of mild steel duly zinc passivated. The connectors are tested at ertl national test house and regional test centre. They are mainly used in panel boards and other electrical and electronic instruments.