The ASI BI2 is a common standard switch. The enclosure and cover are made of glass fibre reinforced Thermoplastic. The cover is provided with LEDs that show status of ASI-Slave and busses. Because of the side connection device and the low enlosure level of the ASI BI2 this safety switch is especially suitable for thight installation areas. The 4 mounting possibilities additionally increase the assembly-friendliness. Protection type IP65 according to EN 60529 and DIN VDE 0470 T1 can be guaranteed.