ALPHA 400 DIN, quick assembly kit for installation Built-in devices with row spacing 125mm with N/PE rail, with longitudinal bars, H=600 W=500 The ALPHA installation distribution board - a complete system of wall-mounted and floor-standing distribution boards for the installation of devices up to 1250 A. ALPHA - the system concept counts. The distribution systems ALPHA 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 different distribution board variants. This simplifies planning and assembly. The equipment is individually and project-specific. The SIMARIS configuration software provides support from planning to documentation of the ALPHA power distribution and distribution boards. The Siemens ALPHA installation distributors are characterized above all by: 1. for simple and fast installation, the installation kits consist of devices.