Technical data

4-4 Potentially-explosive areas MKE UL/CSA
DOK-MOTOR*-MKE*UL/CSA*-PR01-EN-P
For electrical equipment of Group I, the maximum surface temperature
must be indicated in the inspection documents.
Electrical equipment of Group II is categorized and identified; they must
either be:
· preferably allocated into a temperature class in agreement with Fig. 4-
2; or
· identified per the corresponding maximum surface temperature; or
· if applicable, identified per the specific gas for which the equipment is
specified.
Temperature class Maximum surface temperature
°C
T1 450
T2 300
T3 200
T4 135
T5 100
T6 85
Fig. 4-2: Breakdown of the maximum surface temperatures into classes for
electrical equipment of Group II
4.2 Type designation of the motor series MKE UL/CSA
MKE motors are manufactured according to the American standards
· UL 508C/1996-11,
· UL 674/1994-04 and
· UL 1446/1997-05
and have been inspected and certified by UL (Underwriters Laboratories
Inc.®) authority.
Motor type Classification UL number
MKE037 Class I, Groups C and D E203009
MKE047 Class I, Groups C and D E203009
MKE098 Class I, Groups C and D E203009
Fig. 4-3: Type designations for MKE motors
Yellow cards, which confirm the construction and maintenance of the valid
US standards, are available for all MKE motors. If required, the Yellow
Cards can be ordered from the particular sales branch.
Note: MKE motors 037, 047 and 098 may be operated in potentially-
explosive areas only in combination with Bosch Rexroth drive
controllers.
Temperature classes
Yellow Card certificate of
conformance