SINAMICS S120
Engineering Information
SINAMICS Engineering Manual – November 2015
Ó Siemens AG
373/528
Technical data of the braking resistors
510 V – 720 V DC 675 V – 900 V DC 890 V – 1035 V DC
Order No. Unit 6SL3000-
1BE31-
3AA0
6SL3000-
1BE32-
5AA0
6SL3000-
1BF31-
3AA0
6SL3000-
1BF32-
5AA0
6SL3000-
1BH31-
3AA0
6SL3000-
1BH32-
5AA0
P
DB
(Rated power)
kW 25 50 25 50 25 50
P15
(Maximum power)
kW 125 250 125 250 125 250
Resistor
W
4.4 ± 7.5% 2.2 ± 7.5% 6.8 ± 7.5% 3.4 ± 7.5 % 9.8 ± 7.5% 4.9 ± 7.5%
Max. current A 189 378 153 306 125 255
Cable entry Cable gland
M50
Cable gland
M50
Cable gland
M50
Cable gland
M50
Cable gland
M50
Cable gland
M50
Power connection Bolt
M8
Bolt
M8
Bolt
M8
Bolt
M8
Bolt
M8
Bolt
M8
Max. connectable
cable cross-section
mm² 50 70 50 70 50 70
Degreee of protection IP20 IP20 IP20 IP20 IP20 IP20
Width x Height x Depth mm 740 x 605 x
485
810 x 1325 x
485
740 x 605 x
485
810 x 1325 x
485
740 x 605 x
485
810 x 1325 x
485
Approx. Weight kg 50 120 50 120 50 120
Fits to the Braking
Module with order
number
6SL3300-
1AE31-
3AA0
6SL3300-
1AE32-
5 . A0
6SL3300-
1AF31-
3AA0
6SL3300-
1AF32-
5 . A0
6SL3300-
1AH31-
3AA0
6SL3300-
1AH32-
5 . A0
6.8.3 SINAMICS S120 Motor Modules as 3-phase Braking Modules
Design
SINAMICS S120 Motor Modules in Chassis format (air-cooled and liquid-cooled) can be used as 3-phase Braking
Modules. Their application as a Braking Module is recommended whenever very high braking powers, particulary
extremely high continuous braking powers, are required.
Motor Modules can be used as Braking Modules only for less dynamic braking processes because, at about 4 to
5 ms, their response time is 3 times as long as the response time of the Braking Modules designed for mounting in
units in Chassis format, and of the Central Braking Modules included in the SINAMICS S120 Cabinet Modules
product spectrum. These have a response time of only 1 to 2 ms.
SINAMICS S120 Motor Modules operating as 3-phase Braking Modules are connected to the DC busbar, protected
and precharged in the same way as Motor Modules used for their standard purpose. Where possible, they should be
positioned within the drive configuration at the point at which the highest quantity of regenerative energy is fed into
the DC busbar, i.e. if possible next to the Motor Modules which regenerate the most energy.
Drive configuration comprising multiple S120 Motor Modules and one S120 Motor Module as a Braking Module
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