When the apparatus is connected to its supply, terminals may be live, and the opening of the covers or removal of parts (except those to which access can be gained without a tool) is likely to expose live parts.
Live terminals may be exposed when pulling out the 19" plug-in card.
The electrical input and output circuits of the field case and the control panel case are inter- rupted after pulling out the plug-in card; in such a situation, an external protection circuit with interlock diodes, for example, must be provided.
Any operations on the opened apparatus under voltage shall only be carried out by a person who is aware of the hazard involved.
If the original packing is no longer available, the apparatus must be wrapped in an insu- lating air foil or corrugated board and packed in a sufficiently large crate lined with shock absorbing material (foamed material or similar) for the transportation. The amount of cus- hioning must be adapted to the weight of the apparatus and to the mode of transport. Thecrate must be labelled „Fragile“. For overseas shipment the apparatus must additionally be sealed airtight in 0.2 mm thick polyethylene together with a desiccant (e.g. silica gel). The quantity of the desiccant mus correspond to the packing volume and the probable duration of transportation (at least 3 months). Furthermore, for this type of shipment the crate should be lined with a double layer of kraft paper.
Field case IP 65
Control panel case