Patent ID: 8040210

Claim:
An electromagnetically operated switching device, comprising: a switch including a fixed contact and a movable contact opposed to the fixed contact; an electromagnetically operated unit including: a movable core coupled to the movable contact; a fixed core fixedly provided in a peripheral portion of the movable core; and a coil provided on the fixed core, for driving the movable core, wherein the electromagnetically operated unit switches the switch by driving the movable core; a contact pressure spring for holding a contact pressure between the movable contact and the fixed contact; a capacitor storing a charge for supplying a discharging current to the coil by discharging; a charging device for charging the capacitor; and a resistor which is located outside the charging device and connected in series with conductive wires through which the discharging current flows from the capacitor to the coil for switching the switch, the resistor having a resistance value that reduces a peak value of the discharging current and adjusts a waveform of the discharging current to hold a coil current value required to generate a switching drive force opposed to a force of the contact pressure spring at a time when the contact pressure spring operates.