Features

• Emergency Stop Pushbuttons. This unique portfolio of Siemens 3SB3 series is a modular range of commanding and signalling devices for front plate mounting and rear conductor connection. The 3SB3 series are round and have a mounting diameter of 22 mm and their actuator is supplied with a holder. Complete units are offered, but only for the most commonly used applications. This amazing range has the following standards: IEC 60947-1, EN 60947-1, IEC 60947-5-1, EN 60947-5-1, IEC 60947-5-5, EN 60947-5-5 for EMERGENCY-STOP mushroom pushbuttons. Connection methods. These units are available with screw terminals (box terminals), spring-type terminals or solder pins. The 3SB3 series is made of:. molded plastic in flat, wound and square design. metal in round design. They can be mounted by a single person and are climate-proof (KTW 24) to suit industrial applications. Their main purpose of existence is to act as safety emergency-stop pushbuttons and their switching frequency is approximately 1000 operating cycles.