202161 / 815060300020
2016-12-13·BA00·III·en·05
Product selection, project engineering and modification
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Terminal Box
Series 8150/1, Series 8150/2
3.) Calculate the remaining usable area
Subtract the required area for cable entries from the total usable area.
5.2.3 Creation of additional drilled holes and through holes by the customer
Modify the device carefully and only in accordance with the safety notes (see chapter 3).
Calculate the usable area for built-in components, see sections 5.1.2 and 5.2.2.
Create additional through holes by lasing or punching (drilling, hole cutting). When doing
so, maintain a distance of min. 10 mm to the rim of the enclosure
(see figure).
18105E00
Ensure that the surfaces remain flat during punching and cutting.
When determining the through holes, observe the mounting distances.
Adjust the hole diameters to the dimensions of the built-in parts or their seals.
The use of built-in components with flat seal (gasket) is preferred.
Observe section 6.3 "Cable entries, stopping plugs, breathers" when subsequently
equipping components!
5.3
External attached components (cable entries, stopping plugs, breathers)
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
Drilled holes and through holes are generally already equipped with the components
intended for the application ex-factory.
If customers intend to carry out equipping themselves, a dust and transport protection
is applied to the openings in the enclosure (adhesive tape with a warning note or plastic
caps) ex-factory.
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