Cooling Mad Motors - Bosch Rexroth MAD Operating Instruction

42/69 Bosch Rexroth AG
Connection system
9.6

Cooling MAD motors

Fan cover with fan cowl on
MAD100
Rexroth MAD and MAF Motors in EX px d Design acc. to ATEX Directive 2014/34/EU
① Terminal for equipotential bonding
Fig. 9-5: Equipontential bonding on MAD100
Connect the equipotential bonding on the motor via the cable having the
equipotential bonding of the machine or installation and tighten the screwed
connection according to the following table.
Frame size Necessary cable cross-section
100 ... 180
225 min. 25 mm²
Tab. 9-3: Cable cross-section and tightening torque for equipotential bonding
on the motor
MAD motors in ATEX design are equipped with a fan cover with fan cowl for
operation with an external fan.
With view ofn the A-side of the motor, the output direction of the fan cowl is
on the RIGHT side of the motor at delivery. Dependend from the installation,
the output direction of the fan cowl or the fan cover can be adjusted.
The following table gives an overview about the possible output directions de‐
pending from the motor size:
Motor frame size
MAD100
MAD130 ... 160
MAD180 ... 225
Tab. 9-4: Possible output directions of the fan cowl
The output direction of the fan cowl on the MAD100 can be changed without
disassemble the fan cover from the motor. The following figure gives a better
overview about the significant parts of the fan cover without the motor.
DOK-MOTOR*-IDYN*A*EXPD-IB05-EN-P
min. 4 mm²
Possible output directions
right / left
right / left / bottom / top
right / left / bottom
Tightening torque (±10%)
3.5 Nm
20 Nm