Product selection, project engineering and modification
10
255118 / 815060300340
2017-04-19·BA00·III·en·01
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
Terminal box
Series G150/1
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.
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:
Quantity
Type
Area
15 pieces
M20
15 x 685 mm
2
10275 mm
2
7 pieces
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
