| As shown in the illustrated reduced voltage three phase squirrel cage induction motor controller, what is the functional purpose of the "S2" contactor? |
| A) it allows the main and run contactors to be pulled in simultaneously during the run period |
| B) it prevents the main and run contactors to be pulled in simultaneously during the run period |
| C) it allows the motor to be connected in wye and delta simultaneously during the closed transition period only |
| D) it prevents the motor to be connected in wye and delta simultaneously during the open transition period only |
