1. Control cabinet and terminal boxesPlanning and documentation is to be carried out in compliance with the specifications laid down by DIN EN 61439 (VDE 0660-600).The Customer prefers Rittal control cabinets. Control cabinets standing on the floor must be designed with a base in a height of 200 mm.If the control cabinet is not standing on the floor, a minimum clearance of 300 mm between the bottom point of the control cabinet and the floor must be provided. If cables are to be brought out at the bottom side of the control cabinet, the clearance of 300 mm applies from the lowest point of the cable arc.Each control cabinet must provide a reserve space of at least 20%. This means that the mounting slots of the electronic components (PLC control system and I/O level, switching devices such as contactors, etc., terminals) or busbars must provide the corresponding reserve space so that the same type of components can be retrofitted in the existing slots.Control cabinets with an installation height of 800 mm or more must be provided with control cabinet lighting. The lighting system is to be designed so that it switches off when the control cabinet door is closed.The supply voltage of the control cabinet lighting is to be connected via an FI/LS switch in front of the main switch using a short-circuit proof cable (NSGAFÖU).Each control cabinet must be equipped with 2 230V socket-outlets inside. Additional socket-outlets and a programming / data interface are to be provided. Exact details of the position by agreement with the Customer.The socket-outlets are to be connected via an FI/LS switch.1.1 Electrical control cabinet designa. Shields and equipotential bonding conductors are to be connected to ground with a large surface near the cabinet inlets using suitable terminals or busbars. They must not be interrupted. The use of sheath wires is not permissible.b. If the equipotential bonding between the installation and the control cabinet is insufficient, a bonding conductor with a minimum cross-section of 16 mm2 must be laid.c. Reserve cables are to be laid on terminals and have to be labelled (if EMC problems occur, they have to be earthed).d. If devices and components with an inductive behaviour (e.g. transformers, chokes, power supply units, drives) are used, specially short cable routing has to be observed.e. The interference of inductive loads (e.g. contactors, relays, solenoid valves, motor) must be suppressed by means of an RC element, diode, or varistor.