Insulating partition wall for terminals 8JK406 and 8JK4061 The ALPHA installation distribution boards - a complete system of wall and floor-standing distribution boards for the installation of devices up to 1250 A. ALPHA - the system concept counts. The ALPHA distribution systems are tested according to IEC 61439 and are based on a common platform structure with extensive versions up to 1250 A. Due to the platform structure and the modular design, the device-specific installation kits can be integrated into various distribution board variants. This makes planning and assembly easier. The equipment is installed individually and project-specifically. The SIMARIS configuration software supports the ALPHA energy distribution boards and installation distribution boards from planning to documentation. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe, efficient electrical infrastructure in buildings and industry.