The 9001K push button line has a large variety of operators and accessories for heavy industry applications. These operators are used in the petrochemical, metallurgy, mining, oil and gas, wastewater treatment and automotive manufacturing industries and more. Type K operators have a die cast operator that mounts in a 1.18 inch round hole. This non-illuminated push pull push button operator has a metal ring nut. This operator can be used for three wire control. Contact blocks with the desired contact arrangements must be added to this operator. Typically, one 9001KA3 and one 9001KA5 contact block are used. When these contact blocks are used this operator can be pulled to start and push to stop a control circuit. This operator can be made illuminated by adding a light module. A push pull knob like the 9001R22, needs to be ordered separately for this operator. A variety of colors are available. When properly installed this opertor is UL listed for Types 1, 2, 3, 3R, 4, 6, 12 and 13 environments. This operator is UL Listed and CSA certified. "It is installed into a . 30mm panel cutout." "A comprehensive range of illuminated pushbuttons, pilot lights, emergency stop buttons, selector switches, joystick controllers and accessories to fit your needs." "The modular range of . 30mm metal control and signaling provides robust and reliable solutions for a wide range of heavy industry applications."