Schneider Electric Black Round Momentary Pushbutton, NO, Panel Mount - Harmony XB4 Series - XB4BA21 This momentary pushbutton from Schneider Electric provides a simple and reliable solution for controlling industrial processes. It's simple to install on a standard panel, as it needs a 22mm mounting hole. The NO (normally open) contact is spring-loaded, so it can be used to send a start or stop signal to a relay or circuit. Thanks to its wide operating temperature range of -25°C to +70°C, you can use this button in a variety of demanding industrial environments. An impressive mechanical lifespan of 10 million cycles ensures long-lasting and reliable performance. • Chromium-plated metal construction for resistance to impact, wear and corrosion
• IP66 (ingress protection) rating indicates protection against dust and high-pressure water jets
• Maximum voltage of 600V AC/DC for use in high-power applications
• 10A cartridge fuse to protect your equipment against short circuits
• Screw terminals for a secure connection Applications • Control panels
• Warehouses
• Machine safety applications When should I use a momentary pushbutton? Momentary pushbuttons like this one are activated only when pressed, making them a good choice for temporary changes in machine processes.