This Harmony 9001K emergency stop pushbutton, with a red mushroom head, has 2 positions. It operates using a latched turn-to-release mechanism. It has a chromium-plated metal bezel. This pushbutton is equipped with 1 NC contact and a diameter 40mm unmarked red mushroom head. It is easily installed into standard 30mm diameter panel cut-outs and connected to control circuits with classic screw-clamp connections. It is impact-resistant, dust-resistant, water-resistant, and vibration-resistant thanks to its IP66 rating, making it ideal for operation in harsh environments. Harmony 9001K is a range of heavy-duty chromium-plated metal pushbuttons, selector switches, pilot lights, and specialty operators.