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MKE Synchronous Servomotors
ATEX labeling for MKE motors (gas)
Bosch Rexroth AG
R911402016, Edition 02
3
Scope of delivery
The scope of delivery of a MKE synchronous
motor contains:
•
Motor in original package
•
Additional type plate
•
Operating instructions with safety instruc-
tions
•
Protective coverings for output shaft and
connection points
•
Accompanying papers
On delivery, immediately verify whether the deliv-
ered goods are those specified on the delivery
note. The forwarder must be promptly informed
of any damage on the packaging and goods,
which is detected on delivery. Start-up of dam-
aged goods is prohibited.
4
Explosion protection
4.1
EU type test certificate
number
The compliance of motors with size MKE037,
MKE047, MKE098 and MKE118 according to the
basic safety and health requirements for concept
and assembly of the motors in appropriate use in
hazardous areas was confirmed by the notified
body 0102 according to the Directive
2014/34/EU by the EU type test certificate
number PTB
09
ATEX
1128
X (MKE037, -047,
-098) and PTB
09
ATEX
1127
X (MKE118).
4.2
Product description
Three-phase synchronous motors of type
MKE037, -047, -098, -118 operate with drive
systems and are designed in the ignition protec-
tion flameproof enclosure "db" and "tb". These
motors are fitted with three temperature sensors
within the winding to keep the temperature class.
The housing is made of aluminum / aluminum die
casting. Cooling is done via heat exchange of the
open coolant circuit by temperature difference
between housing and surrounding coolant (air).
The motors can be fitted with a holding brake and
with a Multiturn or Singleturn encoder.
MKE motors are supplied with dummy plugs
without sealings. The electrical connection is
made via connecting cables, which are fed into
the terminal box via Ex cable glands (Ex-KLE) and
connected to terminals. The terminal box has
threaded openings for Ex-KLE for connecting
power and encoder cables. The Ex cable and line
entries as well as the connection cables must be
selected by the machine manufacturer or oper-
ator on the basis of the applicable regulations
and installed according to the manufacturer's
specifications.
4.3
ATEX labeling for MKE
motors (gas)
Designation for use in areas with gas-hazardous:
II 2G Ex db IIB T4 Gb
Code
Meaning
Symbol Ex
II
Equipment group
II which is suitable for all
potentially explosive areas other than firedamp-
endangered excavations
2
Equipment in category 2 is intended for use in
areas which has to be calculated that an explo-
sive atmosphere of gas, dust, fog, or dust/air
mixtures can occur occasionally.
G
G = gas
Ex
The European standard for explosion protection
has been applied.
db
Flameproof enclosures (for EPL Gb)
IIB
Group II electrical equipment is intended for use
in areas where explosive gas atmospheres ("B":
typical gas is ethylene) are likely to occur, except
for firedamp-prone mine workings.
