Product selection, project engineering and modification
10
202161 / 815060300020
2016-12-13·BA00·III·en·05
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Terminal Box
Series 8150/1, Series 8150/2
R. STAHL
• will check whether the components, drilled hole diameters, quantity and position
correspond with the approval
• will create the drilled holes and through holes
• will mount the components
• will update the order documentation
• will carry out a routine test
• will, if necessary, fit a new type plate if the technical data has changed,
e.g. due to the components that are to be additionally installed.
5.2.2 Calculate the usable area for cable entries in the enclosure
The calculation is performed in three steps:
Calculate the total usable area
Calculate the required area for cable entries
Calculate the remaining usable area.
1.) Calculate the total usable area
The total usable area for installation is calculated as follows:
(Length of the inner enclosure wall - 2 x 10 mm
*
) x (Height of the inner enclosure wall - 2 x 10 mm
*
)
*2 x 10 mm = circumferential rim of the inner enclosure wall
2.) Calculate the required area for cable entries
Multiply the quantity of desired cable entries by the space requirement values of the
appropriate type from the following table.
Important: The area for the cable entries must be smaller than the total usable area.
Otherwise a larger enclosure must be chosen.
Important for the following calculation:
Measure the dimensions on the plane surface inside of the enclosure
(not on the outside of the enclosure)
Consider additional space required for blind rivet nuts. The space requirement for
the built-in part is determined using the width across corners of the cable entry plus
additional space for the tool.
Cable entry thread diameter
(
12 mm
(
16 mm
(
20 mm
(
25 mm
(
32 mm
(
40 mm
(
50 mm
(
63 mm
Required
space for
each
piece
315 mm
2
495 mm
2
685 mm
2
990 mm
2
1560 mm
2
2420 mm
2
3425 mm
2
5160 mm
2