A range of heads forspring return pushbuttons from the Harmony ZB4 series.

Round design
Marked

You'll be hard-pressed to find a better way to control your machine's on/off button than this push button head from Schneider Electric. It's a straightforward option that Iets you open or close an electrical circuit with just one push. When the button is released, a spring returns it to the first position, ready to be used again. Durability isn't a worry, as this unit will take a knock thanks to its chromium-plated metal bezel.

• Wide operating temperature range between -40°C and +70°C for use in harsh work areas
• IP67 rating assures you it's dust-proof and waterproof even when immersed up to 1m
• Black face with a contrasting white arrow for easy identification in a busy setup

• Warehouses and logistics facilities
• Industrial control systems
• Conveyors

This push button head has a lifespan of 10 million cycles, so it'll last for years to come.

The mounting diameter of this unit is 22mm, so it fits into a standard predrilled cutout.