An electromagnetic switch having a display light is disclosed. The electromagnetic switch includes a housing; an electromagnetic unit in the housing; a contact unit in the housing; a button unit having a top seat, a power-on button and a power-off button, wherein the top seat is connected to the housing in a snap-fit manner, the power-on button and the power-off button are slidably connected to the top seat, respectively; a display light that is fixedly connected between the top seat and the power-on button and has a circuit board, a light-emitting member, and two conductive wires. The two conductive wires are connected to the contact unit. When the power-on button is pressed to turn on the electricity, the light-emitting member will emit light to remind the operator. When the power supply is not normal, the electromagnetic switch is powered off to remind the operator of abnormal power supply.

An electromagnetic switch having a display light is disclosed. The electromagnetic switch includes a housing; an electromagnetic unit in the housing; a contact unit in the housing; a button unit having a top seat, a power-on button and a power-off button, wherein the top seat is connected to the housing in a snap-fit manner, the power-on button and the power-off button are slidably connected to the top seat, respectively; a display light that is fixedly connected between the top seat and the power-on button and has a circuit board, a light-emitting member, and two conductive wires. The two conductive wires are connected to the contact unit. When the power-on button is pressed to turn on the electricity, the light-emitting member will emit light to remind the operator. When the power supply is not normal, the electromagnetic switch is powered off to remind the operator of abnormal power supply.

A solenoid device includes at least one electromagnetic coil for generating a magnetic flux when energized, a fixed core constituting part of a magnetic circuit through which the magnetic flux passes, and plungers constituting the magnetic circuit together with the fixed core and configured to advance to and retract from the fixed core depending on whether the magnetic coil is energized or de-energized. The magnetic circuit is provided with a magnetic resistance part as a resistance for the magnetic flux. The plungers are configured to be attracted to the fixed core by energizing the electromagnetic coil.

A solenoid device includes at least one electromagnetic coil for generating a magnetic flux when energized, a fixed core constituting part of a magnetic circuit through which the magnetic flux passes, and plungers constituting the magnetic circuit together with the fixed core and configured to advance to and retract from the fixed core depending on whether the magnetic coil is energized or de-energized. The magnetic circuit is provided with a magnetic resistance part as a resistance for the magnetic flux. The plungers are configured to be attracted to the fixed core by energizing the electromagnetic coil.

An electrical switch comprising a solenoid assembly including a core casing having a first bearing site and a bearing bush having a second bearing site, an armature movably borne in a switching direction at the first bearing site, and an armature shaft fixed to and movable with the armature and movably borne in the switching direction at the second bearing site.

An electrical switch comprising a solenoid assembly including a core casing having a first bearing site and a bearing bush having a second bearing site, an armature movably borne in a switching direction at the first bearing site, and an armature shaft fixed to and movable with the armature and movably borne in the switching direction at the second bearing site.

A contactor comprises an insulation outer housing, a pair of static terminals, a movable terminal, a first magnetic conductor, a static bracket, a second magnetic conductor and an elastic member. The pair of static terminals are arranged in the insulation outer housing and are stationary relative to the insulation outer housing. The movable terminal is also arranged in the insulation outer housing and is movable between a closed position in contact with the static terminal and an opened position separated from the static terminal. The first magnetic conductor is fixed to the movable terminal to move synchronously with the movable terminal. The static bracket is arranged within the insulation outer housing and is stationary relative to the insulation outer housing. The second magnetic conductor is floatably supported in the static bracket by the elastic member.

An electromagnetic switch having a display light is disclosed. The electromagnetic switch includes a housing; an electromagnetic unit in the housing; a contact unit in the housing; a button unit having a top seat, a power-on button and a power-off button, wherein the top seat is connected to the housing in a snap-fit manner, the power-on button and the power-off button are slidably connected to the top seat, respectively; a display light that is fixedly connected between the top seat and the power-on button and has a circuit board, a light-emitting member, and two conductive wires. The two conductive wires are connected to the contact unit. When the power-on button is pressed to turn on the electricity, the light-emitting member will emit light to remind the operator. When the power supply is not normal, the electromagnetic switch is powered off to remind the operator of abnormal power supply.

An electromagnetic switch having a display light is disclosed. The electromagnetic switch includes a housing; an electromagnetic unit in the housing; a contact unit in the housing; a button unit having a top seat, a power-on button and a power-off button, wherein the top seat is connected to the housing in a snap-fit manner, the power-on button and the power-off button are slidably connected to the top seat, respectively; a display light that is fixedly connected between the top seat and the power-on button and has a circuit board, a light-emitting member, and two conductive wires. The two conductive wires are connected to the contact unit. When the power-on button is pressed to turn on the electricity, the light-emitting member will emit light to remind the operator. When the power supply is not normal, the electromagnetic switch is powered off to remind the operator of abnormal power supply.