Table of Contents
Advertisement
MBT High Synchronous Torque Motors
4.8
Frame size 251
4.8.1
Data sheet MST251
Designation
Standstill torque
Standstill current
Rated torque
Rated power
Rated current
Rated speed
Maximum torque
Maximum current
Max. speed (electrical)
Power wire cross-section
Torque constant at 20 °C
Voltage constant at 20 °C
Thermal time constant
Winding resistance at 20 °C
Winding inductivity
Leakage capacitance of the com‐
ponent
Number of pole pairs
Details about liquid cooling
Power dissipation
Coolant inlet temperature
Permissible coolant temperature
increase for P
V
Required coolant flow at P
V
Pressure drop at Q
min
Volume of coolant duct
Maximum allowed inlet pressure
Symbol
Unit
M
Nm
0
I
A
0
M
Nm
N
P
kW
N
I
A
N
n
min
-1
N
M
Nm
max
I
A
max
n
min
-1
max
A
mm
2
K
Nm/A
M_N
K
V/min
-1
EMK_1
T
min
th_nom
R
Ohm
12
L
mH
12
C
nF
ab
p
-
P
kW
V
T
°C
in
ΔT
K
max
Q
l/min
min
Δp
bar
V
l
cool
p
bar
max
Tab. 4-13:
MST251 - Technical data
Technical data
MST251F-0040-F
635
66.9
546.0
22.90
59.0
400
1250
177.0
700
16.0
9.26
0.670
4.0
0.63
8.9
24.4
15
6.62
10 ... 40
10
9.5
1.0
0.48
6.0
Latest amendment: 2020-01-07
R911298798_Edition 08 Bosch Rexroth AG
51/409
Advertisement
Table of Contents
