Patent ID: 8460039

Claim:
A terminal block in which a plurality of conductors extending from one or more devices are to be placed one over another and fastened by a bolt, comprising: at least one nut with opposite first and second fastening surfaces, at least one step at an outer peripheral part of the first fastening surface and recessed away from the first fastening surface; at least one insulating plate in close contact with the second fastening surface of the nut at sink; at least one heat sink in close contact with a surface of the insulating plate opposite the nut so that heat of the conductors is transferred to the heat sink via the insulating plate; and resin molded integrally around parts of the nut, the insulating plate and the heat sink, the resin covering a restricting surface of the step spaced outward from the first fastening surface and being substantially absent from a press surface extending between the restricting surface of the step and the first fastening surface.