Abstract: A modular, multi-phase electrical relay contactor assembled from a number of electrical relay contactor units. Each unit has a housing, an electromagnetic motor located within the housing, a pair of stationary contacts attached to the housing, a moveable contact, and a moveable contact carrier. The moveable contact carrier is engaged with the moveable contact and has a metallic clapper plunger attached to its upper end. A protrusion extends from one side of the moveable contact carrier and an aperture, sized to receive the protrusion of another electrical relay contactor unit, is formed through another side of the moveable contact carrier. A plurality of units are adapted to be connected together such that when engaged, the protrusion extending from the moveable contact carrier of a forwardly located unit will fit into the aperture formed in the moveable contact carrier of a rearwardly located unit, thereby providing synchronous movement of the plurality of moveable contact carriers and the moveable contacts.

Abstract: A electrical conductor relay. The relay has a unitary, non-conducting, chassis/bobbin assembly with a base portion, a bobbin portion, and an upper portion with a window and a plunger slide passage. An electromagnetic coil is located around the bobbin portion and a magnetic metal core passes through the bobbin and extends partially into the window. First and second electrodes are attached to the chassis/bobbin assembly. The first electrode has a first electrode contact, and the second electrode has a top end. A plunger slide member is positioned within the plunger slide passage and has a magnetic metal plunger plate affixed to its bottom. The magnetic metal plunger plate is movably located in the window and is spaced above the magnetic metal core extending up into window. An armature with a fulcrum end and a rearwardly extending spring attachment end and a front end with an armature contact is provided. The armature pivotally engaged with the plunger slide member.

Abstract: A modular, multi-phase electrical relay contactor assembled from a number of electrical relay contactor units. Each unit has a housing, an electromagnetic motor located within the housing, a pair of stationary contacts attached to the housing, a moveable contact, and a moveable contact carrier. The moveable contact carrier is engaged with the moveable contact and has a metallic clapper plunger attached to its upper end. A protrusion extends from one side of the moveable contact carrier and an aperture, sized to receive the protrusion of another electrical relay contactor unit, is formed through another side of the moveable contact carrier. A plurality of units are adapted to be connected together such that when engaged, the protrusion extending from the moveable contact carrier of a forwardly located unit will fit into the aperture formed in the moveable contact carrier of a rearwardly located unit, thereby providing synchronous movement of the plurality of moveable contact carriers and the moveable contacts.

Abstract: A electrical conductor relay. The relay has a unitary, non-conducting, chassis/bobbin assembly with a base portion, a bobbin portion, and an upper portion with a window and a plunger slide passage. An electromagnetic coil is located around the bobbin portion and a magnetic metal core passes through the bobbin and extends partially into the window. First and second electrodes are attached to the chassis/bobbin assembly. The first electrode has a first electrode contact, and the second electrode has a top end. A plunger slide member is positioned within the plunger slide passage and has a magnetic metal plunger plate affixed to its bottom. The magnetic metal plunger plate is movably located in the window and is spaced above the magnetic metal core extending up into window. An armature with a fulcrum end and a rearwardly extending spring attachment end and a front end with an armature contact is provided. The armature pivotally engaged with the plunger slide member.