screwdriver, long, green with screwdriver blade 3.5 x 0.5, e.g. for actuating of spring-loaded terminal Terminal block connection technology for various industrial applications and modern building installation from Siemens. Regardless of whether you decide on the screw-type, spring-loaded, push-in or quick connection: All of the connection technologies can be freely combined. The labeling and test accessories are standardized and can be used interchangeably. Many applications can be implemented in industry, functional and residential buildings with the terminal blocks from SIEMENS. This gives you access to the right connection technology for every connection system. Key features of...rom Siemens. www.siemens.com/lowvoltage. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry.