Product Selection, Project Engineering and Modification
10
133285 / 8118609300
2019-11-13·BA00·III·en·06
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Terminal Boxes
Series 8118/1, Series 8118/2
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.
3.) Calculate the remaining usable area
Subtract the required area for cable entries from the total usable area.
Modify the device carefully and only in accordance with the safety information
(see "Safety" chapter).
Calculate the usable area for built-in components.
Create additional drilled holes through lasing or punching (drilling, hole cutting).
When doing so, maintain a distance of min. 10 mm to the rim of the enclosure
(see figure).
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
Calculation example:
Starting conditions:
• Dimensions of inner enclosure wall: 297 mm (Side D) x 122 mm (Side C)
• Desired cable entries: M20 (15 pc), M32 (7 pc)
Calculate the total usable area:
(297 mm - 2 x 10 mm
*
) x (122 mm - 2 x 10 mm
*
)
= 28254 mm
2
Calculate the required area for cable entries and remaining usable area:
Number
Type
Area
15 piece
M20
15 x 685 mm
2
10275 mm
2
7 piece
M32
7 x 1560 mm
2
10920 mm
2
21195 mm
2
Required area for cable entries
28254 mm
2
Usable area
7059 mm
2
Remaining usable area
Содержание 8118/1 Series
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