An electromagnetic contact device, comprising: a contactor holder which is configured to move a mounted movable contactor according to a displacement of a movable core forming an electromagnet , with the contactor holder being accommodated together with the electromagnet in a case , wherein the case has: a lower case portion which accommodates the electromagnet , wherein the electromagnet is positioned such that a fixed core and the movable core are opposed, and an upper case portion which engages with the lower case portion while stacked on the lower case portion , and which accommodates the contactor holder advanced for the accommodation from above, so that, in assembly of the contact device, constituent components can be incorporated by drop-in insertion in the order of lower case portion , electromagnet and upper case portion , the upper case portion of the case supports, by insertion into a hole therewithin, an operation lever which is linked to the movable core of the electromagnet accommodated in the lower case portion ; characterized in that the electromagnet is a DC-only electromagnet ; and in that the electromagnetic contact device is configured such that, when an external command causes a current to be passed through an electromagnetic coil of the electromagnet to perform excitation, the movable core is attracted to the fixed core and is displaced by sliding in a first direction, thereby causing the contact holder , which is linked via the operation lever to the movable core , to slide and move in the first direction such that the movable contactor performs a switching action. a contactor holder which is configured to move a mounted movable contactor according to a displacement of a movable core forming an electromagnet , with the contactor holder being accommodated together with the electromagnet in a case , wherein the case has: a lower case portion which accommodates the electromagnet , wherein the electromagnet is positioned such that a fixed core and the movable core are opposed, and an upper case portion which engages with the lower case portion while stacked on the lower case portion , and which accommodates the contactor holder advanced for the accommodation from above, so that, in assembly of the contact device, constituent components can be incorporated by drop-in insertion in the order of lower case portion , electromagnet and upper case portion , a lower case portion which accommodates the electromagnet , wherein the electromagnet is positioned such that a fixed core and the movable core are opposed, and an upper case portion which engages with the lower case portion while stacked on the lower case portion , and which accommodates the contactor holder advanced for the accommodation from above, so that, in assembly of the contact device, constituent components can be incorporated by drop-in insertion in the order of lower case portion , electromagnet and upper case portion , the upper case portion of the case supports, by insertion into a hole therewithin, an operation lever which is linked to the movable core of the electromagnet accommodated in the lower case portion ; characterized in that the electromagnet is a DC-only electromagnet ; and in that the electromagnetic contact device is configured such that, when an external command causes a current to be passed through an electromagnetic coil of the electromagnet to perform excitation, the movable core is attracted to the fixed core and is displaced by sliding in a first direction, thereby causing the contact holder , which is linked via the operation lever to the movable core , to slide and move in the first direction such that the movable contactor performs a switching action. <EOS>