Additional identification label with
details on motor purging
⇒ II Device group II, suitable for all potentially explosive atmos‐
pheres except for underground parts of mines liable to be en‐
dangered by firedamp
⇒ 2G Device category 2, device only suitable for potentially explosive
atmospheres cause by occasionally occurring gas
⇒ Ex The European Standard for explosion protection has been ap‐
plied
⇒ px Ignition protection type px means that potentially explosive at‐
mospheres are kept away from the ignition source (EN
60079-2) in compliance with special requirements in the type
test certificate
⇒ d Ignition protection type d means that any transmission of an
explosion to the outside is excluded (EN 60079-1)
⇒ IIB Explosion subgroup for certain gases and vapors
⇒ T3 The max. allowed surface temperature is 155 °C (within and
without of the housing)
⇒ Gb Device with a high safety level for use in potentially gas explo‐
sive atmospheres where there is no ignition risk during normal
operation or in the event of foreseeable faults/malfunctions
⇒ TPS***-X Motor registration number. X = Special requirements are appli‐
cable because Bosch Rexroth does not deliver the related
safety device (control unit for pressurized enclosure). The in‐
structions in the operator manuals of the Ex-type motors for ad‐
justing the control unit (e.g., minimum purging time, minimum
pre-purging flow, ...) are mandatory.
① Purge volume: MAD/MAF100 = 4 L; MAD/MAF130 = 6 L; MAD/
MAF160 = 10 L; MAD/MAF180 = 15 L; MAD/MAF225 = 19 L
② Purge gas to be used: Instrument air
③ Method: Compensation of leak losses
④ Minimum upstream pressure (purge gas): 2 bar overpressure
⑤ Minimum pre-purging flow: MAD/MAF100 = 25 l/min; MAD/
MAF130 = 35 l/min; MAD/MAF160 = 55 l/min; MAD/MAF180 =
80 l/min; MAD/MAF225 = 100 l/min
⑥ Minimum pre-purge time: 60 seconds per motor
⑦ Minimum overpressure: 1 mbar
⑧ Maximum overpressure: 23 mbar
⑨ Maximum leak losses: 10 l/min
⑩ Max. surrounding air temperature: 0 °C <= Ta <= +40 °C
Fig. 6-2: Ex-identification plate on Ex-type motors
Bosch Rexroth AG DOK-MOTOR*-IDYN*A*EXPD-IB05-EN-P26/69
Rexroth MAD and MAF Motors in EX px d Design acc. to ATEX Directive 2014/34/EU
Labeling the motors
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