SIEMENS
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Siemens D 31 N · March 2016
SINAMICS G120 standard inverters
0.37 kW to 250 kW (0.5 hp to 400 hp)
Supplementary system components
> Brake Relay
5
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Overview
The Brake Relay allows the Power Module to be connected to an
electromechanical motor brake, thereby allowing the motor
brake to be driven directly by the Control Unit.
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Selection and ordering data
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Technical specifications
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Integration
The Brake Relay has the following interfaces:
•
A switch contact (NO contact) to control the motor brake
solenoid
•
A connection for the cable harness (CTRL) for connection to
the Power Module
The Brake Relay can be installed on the shield bonding plate
near the power terminals of the Power Module.
The supplied Brake Relay includes the cable harness for
connection with the Power Module.
The 24 V DC solenoid of the motor brake is connected via an
external power supply. For 24 V DC, external surge arrestors
are required (e.g. varistor, transil diode).
Connection example of 24 V DC Brake Relay
Connection example of 230 ... 400 V 1 AC Brake Relay
Description
Article No.
Brake Relay
Including cable harness for connection
with the Power Module
6SL3252-0BB00-0AA0
Brake Relay
6SL3252-0BB00-0AA0
Switching capability of the NO contact,
max.
440 V AC / 3.5 A
30 V DC / 12 A
Conductor cross-section, max.
2.5 mm
2
Degree of protection
IP20
Dimensions
• Width
68 mm (2.68 in)
• Height
63 mm (2.48 in)
• Depth
33 mm (1.3 in)
Weight, approx.
0.17 kg (0.37 lb)
24 V DC
G_D011_EN_00348
Brake solenoid
Brake control connection
(cable harness to the inverter)
*)
Varistor 35 V or
transil diode
Brake Relay
CTRL
*)
400 V 1 AC/ 230 V 1 AC
G_D011_EN_00349
Rectifier module
e.g. in the motor terminal box
Brake solenoid
Brake control connection
(cable harness to the inverter)
Brake Relay
CTRL
© Siemens AG 2016