Modular multi-phase contactor

A modular, multi-phase electrical relay contactor, comprising a plurality of electrical relay contactor units, each comprising:

• a housing with a front face with an aperture formed therein and an open back;
• an electromagnetic motor comprising a magnetic coil and a metallic outer core located in an upper portion of the housing;
• a pair of stationary contacts with contact pads on underside surfaces thereof;
• a moveable contact with contact pads on upper surfaces thereof that are in alignment with the contact pads on the stationary contacts;
• a metallic clapper plunger;
• and
• a moveable contact carrier engaged with the moveable contact, the metallic clapper plunger being affixed to a top of the moveable contact carrier, the moveable contact carrier having a protrusion extending from a forwardly facing front side thereof and an aperture formed through a rearwardly facing rear side thereof that is sized to receive the protrusion of another electrical relay contactor unit, the protrusion moveably extending through the aperture in the front face of the housing;
• wherein a plurality of electrical relay contactor units can be connected together with the front face of a rearwardly positioned electrical relay contactor unit placed adjacent to the open back of a frontwardly positioned electrical relay contactor unit such that the protrusion extending from the front side of the moveable contact carrier of the forwardly located electrical relay contactor unit will fit into the aperture formed in the rear side of the moveable contact carrier of the rearwardly located electrical relay contactor unit, thereby providing synchronous movement of the plurality of moveable contact carriers and the moveable contacts when the electromagnetic motor is activated.

A modular, multi-phase electrical single pole, double throw relay contactor, comprising a plurality of single pole, double throw relay electrical relay contactor units, each comprising:

• a housing;
• an electromagnetic motor located within the housing;
• a pair of stationary contacts with contact pads formed on underside surfaces thereon;
• a moveable contact with contact pads formed on an upper surfaces thereon;
• and
• a moveable contact carrier engaged with the moveable contact and carrying the moveable contact in a position parallel to the stationary contacts, the moveable contact carrier having metallic means attractable by the electromagnetic motor, and having a protrusion extending from a forwardly facing side thereof and an aperture formed through a rearwardly facing side thereof, the aperture being sized to receive the protrusion of another electrical relay contactor unit;
• wherein a plurality of electrical relay contactor units can be connected together such that the protrusion extending from the moveable contact carrier of a forwardly located electrical relay contactor unit will fit into the aperture formed in the moveable contact carrier of a rearwardly located electrical relay contactor unit, thereby providing synchronous movement of the plurality of moveable contact carriers and the moveable contacts.