SINAMICS G120 Brake Control Accessory
Siemens 6SL3252-0BB00-0AA0 SINAMICS Brake Relay
A model-specific brake relay that provides the interface between a SINAMICS Power Module and an electromechanical motor holding brake.
Basic motor holding brake control for SINAMICS Power Modules
Siemens 6SL3252-0BB00-0AA0 is the SINAMICS Brake Relay for a Power Module. Siemens describes the relay as the interface between the control unit or power module and the brake solenoid of an electromechanical motor brake.
The relay provides the basic brake-control function through one normally open switch contact. The SINAMICS Control Unit can therefore command the connected motor holding brake through the Power Module and this relay interface.
Official model-specific electrical and mechanical data
| Manufacturer | Siemens |
|---|---|
| Article number | 6SL3252-0BB00-0AA0 |
| Product description | SINAMICS Brake Relay for Power Module |
| Contact function | One normally open switch contact for motor holding brake control |
| Supply voltage, AC | 250 V |
| Supply voltage, DC | 30 V |
| Current value at 230 V AC | 16.0 A |
| Current value at 24 V DC | 12.0 A |
| Maximum conductor cross-section | 2.5 mm² (AWG 14) |
| Degree of protection | IP20 |
| Dimensions (W × H × D) | 68 × 63 × 33 mm |
| Net weight | 0.17 kg |
| Packaging dimensions | 145 × 155 × 45 mm |
| EAN | 4019169454650 |
| Country of origin | Great Britain |
How the relay fits into the brake-control path
Power Module interface
The relay creates the documented connection between the SINAMICS Power Module and an electromechanical motor brake.
Control Unit command path
Through the relay interface, the motor holding brake can be commanded directly by the SINAMICS Control Unit.
Normally open contact
The relay provides one normally open switch contact for controlling the motor holding brake solenoid.
Basic brake function
This order number is the standard Brake Relay. It must not be confused with the Safe Brake Relay order number 6SL3252-0BB01-0AA0.
Power Module connection and physical checks
Current Siemens SINAMICS G120 operating instructions list connection possibilities for PM240-2, PM240P-2 and PM250 Power Modules. Use the exact Power Module documentation and the dedicated brake relay installation instructions when fitting and wiring the unit.
The dedicated Siemens instructions show the Brake Relay fitted to the termination screening kit.
The official maximum conductor cross-section is 2.5 mm² (AWG 14).
Confirm the complete article number and use the Brake Relay, not the Safe Brake Relay variant.
Current Siemens product status
Siemens Industry Mall identifies 6SL3252-0BB00-0AA0 as an active product in lifecycle class PM300.
6SL3252-0BB00-0AA0 technical questions
What is Siemens 6SL3252-0BB00-0AA0?
It is a SINAMICS Brake Relay for a Power Module, used as the interface to an electromechanical motor holding brake.
Which Power Modules have a documented connection for this Brake Relay?
Current Siemens G120 operating instructions list PM240-2, PM240P-2 and PM250.
What contact function does the relay provide?
It provides one normally open switch contact for controlling the motor holding brake.
What electrical values are stated in the model-specific data sheet?
The Siemens data sheet lists 250 V AC and 30 V DC, with 16.0 A at 230 V AC and 12.0 A at 24 V DC.
What are the official dimensions and net weight?
The model-specific dimensions are 68 × 63 × 33 mm and the technical net weight is 0.17 kg.
Mixed-brand models from the historical product library
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| Mitsubishi Electric QD62E | Phoenix Contact MINI-PS-12-24DC/24DC/1 | SEW-EURODRIVE MDX61B0015-5A3-4-0T/DEH11B/DFE32B |
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| Mitsubishi Electric AJ71AP21 | Phoenix Contact QUINT-PS-100-240AC/12DC/10 | SEW-EURODRIVE MC07B0005-5A3-4-00/FSC11B/DFP2 |
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| ABB ACH550-UH-03A3-4 | Mitsubishi Electric QJ71C24N | SEW-EURODRIVE MC07B0022-5A3-4-00 |
| Honeywell DC-TDOB01 | Siemens 6SL3000-0BE21-6DA0 | ABB ACH550-UH-072A-4 |
| Mitsubishi Electric MR-J4-20B | SEW-EURODRIVE MC07A005-2B1-4-00 | Honeywell CC-PAIM01 |
| Siemens 6SL3000-0BE23-6AA0 | ABB ACH550-UH-072A-4+B055 | Mitsubishi Electric AJ61BT11 |
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