Incorrect Correct
Minimum dimension "x" for the distance between neighboring modules and the air intake of the machine
Table 4-2 Minimum dimension "x" for the distance between adjacent modules and the air intake of
the machine
Shaft height x
mm
63 ... 71 15
80 ... 100 20
112 25
132 30
160 40
180 ... 200 90
225 ... 250 100
280 ... 315 110
355 140
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.
Preparing for use
4.7Thermal protection
1MB..1/2/3/4 - shaft heights 63 ... 355
Operating Instructions, 11/2023, A5E52779900A 51