Oper ating Instr u ctions CM Synchronous Ser v omotors 35 9 T echnical Dat a 95 B R brake operating currents The current values I H holding current specified in the tables are rms values Use only rms instruments for your measurement The inrush current accelerator current I B only flows for a short time max 150 ms wh en the brake is released or during voltage dips below 70 of the rated voltage Ther e is no increased inrush current if the BG brake rectifier is used or if there is a dire ct DC voltage supply both are only possible with brakes up to motor size BMG4 Legend BR1 BR2 BR8 Motor CM71 CM90 CM1 1 2 Max braking torque Nm 20 40 1 1 0 B r ak ing pow e r W 45 55 75 Inrush current ratio I B I H 40 4 0 63 Rated volt age V rated BR1 BR2 BR8 I H A AC I H A AC I H A AC V AC V DC 24 15 1 7 26 11 0 071 09 1 20 230 031 039 053 400 018 022 029 460 016 021 026 I B Accelerator current shortterm inrush current I H Holding current r ms valu e in the connecting harness to the SEW brake rectifier V rated Rated volt age rat ed volt age range P i f kV A Hz n