This 30mm mushroom shaped blue push button head is ideal for situations where quick actions are required. It is also ideal for a process or machine to function correctly or where operator movements require maximum ergonomy. It is easily combined with Harmony range of contact blocks to perform a large variety of control functions. It is clearly distinguishable visually at a distance thanks to a prominent 30mm mushroom shape. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. It makes it ideal for operation in harsh environments.