EN
ZENITH-S
MP37634
ZP90993-1
47
3.11 DRILLING CLEARANCES
Cable gland size
a - (mm)
Minimum Clearances
Between holes
b - (mm)
Minimum Clearances
From the edge (*)
(mm)
12
25
6
16
32
8
20
39
9
25
46
11
32
58
13
40
68
14
50
81
15
63
96
16
75
105
16
(*) Minimum distance from the enclosure edge or the limit drilling area.
Table 16 - Clearance for standard gland sizes
Clearance between two holes with same diameter
Clearance between two holes with different diameters
a1
a
b
b
a
a2
b2
b1
GLAND
CLEARANCE
CLEARANCE
GLAND
a1
a
b
b
a
a2
b2
b1
CLEARANCE
CLEARANCE
GLAND
GLAND
Minimum centre to centre distance = b
Minimum centre to centre distance = b1/2 + b2/2
Figure 16
