Circuit shown in Figure 3-64. When the switch SAi placed in the work position, SA2 placed in the standby position, the motor is running Mi, Mz spare. When downtime occurs when
Mi, Mz automatically put into operation; similarly, SAz into work position, SAi placed in the standby position, the M2 run, Mi spare, when downtime occurs when M2, Mi automatically put into operation. When SAi and SA2 are placed in the manual position, you can separately Mi, M2 motor manual control. SAi and SA2 can type LW5-15D0404/2 transfer switch.