1-2 Terminals 1-2 Terminals 1 Terminal Position and Arrangement Design The terminal arrangement on the Regenerative Braking Unit is shown below. „ 3G3AX-RBU21/-RBU22/-RBU41 „ 3G3AX-RBU42 Main circuit terminals (screw size:M5) Tightening torque: 3.4 to 3.7 N ⋅ m Control circuit terminals (screw size:M3) Tightening torque: 0.6 to 0.9 N ⋅ m 1-3 Main circuit terminals (screw size:M4) Tightening torque: 1.2 to 1.3 N⋅m N RB P P Control circuit terminals (screw size:M3) Tightening torque: 0.6 to 0.9 N⋅m SL1 SL2 MA1 MA2 Alarm terminals (screw size:M3) Tightening torque: 0.5 to 0.6 N⋅m AL1 AL2 R1 R2 N RB P P SL1 SL2 MA1 MA2 AL1 AL2 R1 R2 N RB P P SL1 SL2 MA1 MA2 AL1 AL2