Stahl 8146/1 Serie Mode D'emploi page 13

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.
Cable entry thread diameter
( 12 mm/
( 0.47 inch
Required 315 mm
0.49 inch
space for
each
piece
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.
Calculation example:
Starting conditions:
• Dimensions of inner enclosure wall:
297 mm/11.69 inch (Side D) x 122 mm/4.80 inch (Side C)
• Desired cable entries: M20 (15 pc), M32 (7 pc)
Calculate the total usable area:
(297 mm - 2 x 10 mm
2
= 28254 mm
(11.69 inch - 2 x 0.39 inch
2
= 43.79 inch
Calculate the required area for cable entries and remaining usable area:
Number Type
15 pcs M20
7 pcs M32
137216 / 8146626300
2021-01-08·IO00·III·en·09
Product Selection, Project Engineering and Modification
( 16 mm/ ( 20 mm/
( 0.63 inch ( 0.79 inch
2 2 2
/ 495 mm / 685 mm /
2 2 2
0.77 inch 1.06 inch
*
) x (122 mm - 2 x 10 mm
*
) x (4.80 inch - 2 x 0.39 inch
Area
2
15 x 685 mm / 10275 mm
2
15 x 1.06 inch 15.93 inch
2
7 x 1560 mm / 10920 mm
2
7 x 2.42 inch 16.93 inch
21195 mm
32.85 inch
28254 mm
43.79 inch
7059 mm
10.94 inch
( 25 mm/ ( 32 mm/ ( 40 mm/
( 0.98 inch ( 1.26 inch ( 1.57 inch
2 2
990 mm / 1560 mm / 2420 mm
2 2
1.53 inch 2.42 inch 3.75 inch
*
)
*
)
2
/
2
2
/
2
2
/ Required area for cable entries
2
2
/ Usable area
2
2
/ Remaining usable area
2
Terminal Boxes
Series 8146/1, Series 8146/2
( 50 mm/ ( 63 mm/
( 1.97 inch ( 2.48 inch
2 2 2
/ 3425 mm / 5160 mm /
2 2 2
5.31 inch 7.99 inch
13
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