Thermal Protection - Siemens SIMOTICS XP 1MB 1 Series Operating Instructions Manual

Minimum dimension "x" for the distance between neighboring modules and the air intake of the machine
Table 4-2
4.7

Thermal protection

Protect explosion-protected machines against overload according to IEC / EN 60079-14, Section
"Rotating electrical machines".
Use a motor circuit breaker, directly monitor the winding temperature or use equipment to
provide the same functionality corresponding to the explosion type of protection.
1MB..1/2/3/4 - shaft heights 63 ... 355
Operating Instructions, 11/2023, A5E52779900A
Incorrect
Minimum dimension "x" for the distance between adjacent modules and the air intake of
the machine
Shaft height
63 ... 71
80 ... 100
112
132
160
180 ... 200
225 ... 250
280 ... 315
355
Preparing for use
4.7 Thermal protection
Correct
x
mm
15
20
25
30
40
90
100
110
140
51