Siemens SIMOTICS XP 1LG6 - Page 40

Electrical connection
Explosion-protected machines
112 56100000002002, 01/2016
Table 6-2 Thread sizes in the aluminum terminal box
Frame size
Type
Type of protection /
Zone
Standard thread
Additional
thread with
mounting parts
Size
Num
ber
Size
Num
ber
63 ... 90 1LA7
1LA9
1MA7
Increased safety "e" M 16 x 1.5
M 25 x 1.5
1
1
- -
Non sparking "n"
Zone 21
Zone 21
80 ... 90 1MB1
Non-sparking "n"
M 16 x 1.5
M 25 x 1.5
1
1
- -
Zone 21
Zone 21
100 ... 132 1LA7
1LA9
1MA7
Increased safety "e"
M 32x1.5 4 - -
Non sparking "n"
Zone 21
Zone 22
100 ... 132 1MB1
Non sparking "n"
M 32x1.5 2 M 16x1.5 1
Zone 21
Zone 22
160 1LA7
1LA9
1MA7
Increased safety "e"
M 40x1.5 4 - -
Non sparking "n"
Zone 21
Zone 22
160 1MB1
Non sparking "n"
M 40x1.5 2 M 16x1.5 1
Zone 21
Zone 22
180 1LA5 Zone 21 M 40x1.5 2 M 16x1.5 1
Zone 22