Stahl 8150/1 Serie Mode D'emploi page 12

Product Selection, Project Engineering and Modification
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1.) Calculate the total usable area
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The total usable area for installation is calculated as follows:
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(Length of the inner enclosure wall - 2 x 10 mm
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(Height of the inner enclosure wall - 2 x 10 mm
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(Length of the inner enclosure wall - 2 x 0.39 inches
(Height of the inner enclosure wall - 2 x 0.39 inches
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*2 x 10 mm/0.39 inches = circumferential rim of the inner enclosure wall
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2.) Calculate the required area for cable entries
 Multiply the quantity of desired cable entries by the space requirement values of the
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appropriate type from the following table.
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Required
space for
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each piece
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Important: The area for the cable entries must be smaller than the total usable area.
Otherwise a larger enclosure must be chosen.
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3.) Calculate the remaining usable area
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 Subtract the required area for cable entries from the total usable area.
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Calculation example:
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Starting conditions:
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• Dimensions of inner enclosure wall:
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297 mm/11.69 inches (Side D) x 122 mm/4.80 inches (Side C)
• Desired cable entries: M20 (15 pc), M32 (7 pc)
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Calculate the total usable area:
(297 mm - 2 x 10 mm
= 28254 mm
(11.69 in - 2 x 0.39 inches
= 43.79 inches
Calculate the required area for cable entries and remaining usable area:
Number
15 pieces
7 pieces
12
Terminal boxes
Series 8150/1, Series 8150/2
Cable entry thread diameter
( 12 mm/ ( 16 mm/ ( 20 mm/
( 0.47 ( 0.63 ( 0.79
inches inches inches
2 2
315 mm / 495 mm / 685 mm
2 2
0.49 inches 0.77 inches 1.06 inches
*
) x (122 mm - 2 x 10 mm
2
*
) x (4.80 in - 2 x 0.39 inches
2
Type
2
M20 15 x 685 mm /
15 x 1.06
2
inches
2
M32 7 x 1560 mm /
2
7 x 2.42 inches
*
) x
*
)
*
) x
*
)
( 25 mm/ ( 32 mm/
( 0.98 ( 1.26
inches inches
2 2
/ 990 mm / 1560 mm
2 2
1.53 inches 2.42 inches
*
)
*
Area
2
10275 mm /
2
15.93 inches
2
10920 mm /
2
16.93 inches
2
21195 mm / Required area for cable entries
2
32.85 inches
2
28254 mm / Usable area
2
43.79 inches
2
7059 mm / Remaining usable area
2
10.94 inches
( 40 mm/ ( 50 mm/
( 1.57 ( 1.97
inches inches
2 2
/ 2420 mm / 3425 mm
2 2
3.75 inches 5.31 inches
)
212727 / 815060300170
2021-02-25·IO00·III·en·02
( 63 mm/
( 2.48
inches
2 2
/ 5160 mm /
2 2
7.99 inches