SIEMENS
7/26
Siemens CR 1 · 2015
7
SIMOTICS motors for cranes
SIMOTICS SD – Severe Duty motors
1LP4, 1LP6 with mounted spring-set brake
■
Overview
Three-phase asynchronous motor 1LP with fitted DC-excited spring-set
brake
The naturally cooled crane motors of type 1LP4 and 1LP6 form
a compact drive unit when combined with the mounted
spring-set brake and are ideal for application as traversing mo-
tors. The DC-operated brake is designed as a holding brake, but
is also capable of emergency shutdown braking operations at
maximum motor speed. In the case of power failure, the brake is
applied automatically by its spring force and brings the drive to
a standstill.
Product range
The product range includes shaft heights 132 S to 280 M in
the 5.5 to 132 kW power range for 4-pole motors, or in the 3 to
90 kW power range for 6-pole motors, for duty type S3-25 % in
each case. As the table below shows, more than one type of
brake can be fitted to a motor; this flexibility allows the user to
tailor the drive unit – comprising the motor and brake –
to the exact requirements of the crane manufacturer.
The motors can also be ordered without a brake. The same ar-
ticle numbers apply, but the article number supplements for the
brake are excluded.
Motor
shaft height
Brake type
KFB 10
KFB 16
KFB 25
KFB 30
KFB 40
KFB 63
KFB 100
KFB 160
100 Nm
160 Nm
250 Nm
300 Nm
400 Nm
630 Nm
1000 Nm
1600 Nm
132
160
180
200
225
250
280
© Siemens AG 2015