The 3251-21-01/52 is a double-pole single-throw (DPST)Pushbutton Switch for voltage loss protection with auxiliary contacts and on-off switch operation. This new type of switch is operated manually. An electromagnet sets the switch when turned on and if for any reason voltage to occur then the power is tripped out. The switch must then be manually re-set before power can be restored. This prevents unintentional re-start an obvious safety feature when used in conjunction with electric power tools.
