Siemens 3SU1 Series Twist Release Emergency Stop Push Button, Surface Mount, 1NC, IP66, IP67, IP69

The mounting type of the enclosure of this 3SU1851-0NA00-2AC2 can be vertically only. This is a typical emergency off/stop function device with the operating voltage of AC (alternating current)/DC (direct current) electricity. The vibration resistance, according to IEC 60068-2-6 standards for this high quality unit is 10 .. 500 Hz: 5g. The ambient temperature during operation ranging from -25°C to +70°C, during storage however ranging from -40°C to +80°C. The Emergency Stop Mushroom Pushbuttons represents worldwide standards, in particular: •IP66 where a device can withstand high-pressure water jets and is suitable for tough outdoor use •IP67 where a device can withstand immersion in one meter of water for 30 minutes •IP69K where a device can withstand both rough treatment and intensive, high-temperature cleaning. They are ideal for environments with high sanitary requirements, such as the food and beverage industry. Frequently asked questions & answers What is the different between a push button switch for an emergency stop and a general-purpose push button switch?A general-purpose push button switch is used for controls, e.g. to start machine operation or simply to switch modes. An emergency stop push button switch however, is mainly used as a safety measure to stop hazardous events.