Number of pole pairs
Symbol
o
Unit
-
Quantity of pole pairs of the motor.
Rotor moment of inertia
Symbol
J
rot
Unit
kgm
2
Moment of inertia of the rotor without the optional holding brake. Moment of inertia of
holding brake must be added if necessary.
Thermal time constant
Symbol
T
th
Unit
min
Time of the temperature increase to 63% of the final temperature of the motor housing
with the motor loaded with the permissible S1 continuous torque. The thermal time
constant is defined by the cooling type used.
①
Chronological development of the temperature at the motor housing
Θmax
Highest temperature (motor housing)
Tth
Thermal time constant
Fig.4-3:
Thermal time constant
Maximum velocity
Symbol
n
max
Unit
min
-1
Maximum permissible velocity of the motor.
Sound pressure level
Symbol
L
P
Unit
dB(A)
Determined values for 1 m distance from motor to measuring point.
Mass
Symbol
m
Unit
kg
Motor mass, value in brackets for motors with holding brakes.
Ambient temperature in operation
Symbol
T
um
Unit
°C
0 … 40 ℃
Degree of protection
Symbol
-
Unit
-
IP protection mode according to EN 60529
Insulation class
Symbol
-
Unit
-
Insulation class according to DIN EN 60034-1
Holding torque
Symbol
M
4
Unit
Nm
Transferable holding torque of holding brake.
DOK-MOTOR*-MKE*GEN2***-PR06-EN-P
Rexroth MKE Synchronous Motors for Potentially Explosive Areas acc. to ATEX and UL/CSA
Bosch Rexroth AG
25/135
Technical Data
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
