The Witco vinyl ring terminal is for General purpose with an insulation rating to 167 degree F (75 degree C) and a maximum voltage of 600V. Witco engineering is entering our fourth decade as a prime manufacturer of practical products for making life easier and safer - at home, in the workplace, on the road, in the campground and on the water. We are grateful for valued employees and customers and We are dedicated to continuing growth based upon integrity and service. We are also proud of our heritage of providing innovative quality products.