SINAMICS SAFE brake relay for Power Module with SINAMICS S120 released from V2.6! Safe Brake Relay SINAMICS Safe Brake Relay for Power Module with SINAMICS S120 for the modular frequency converter SINAMICS G120 and the servo converter SINAMICS S110. The Safe Brake Relay enables a safe connection to be established between the Power Module and an electromechanical motor brake. This enables safe brake control to be implemented directly with the Control Unit CU250S-2 in accordance with IEC 61508 SIL 2 and EN ISO 13849-1 PL d and Category 3. The scope of delivery of a Safe Brake Relay includes: two form cables for connection to the CTRL socket of the Power Module - length 0.32 m for frame sizes FSA to FSC and - length 0.55 m for frame sizes FSD to FSF. SINAMICS - simply my drive.