TD series terminal blocks are used in the 50Hz (or 60Hz), rated operational voltage up to 660V and rated current up to 100A power and control circuits, use as a connection between conductor. JH9 series terminals suitable for AC 50HZ (or 60Hz), rated operational voltage up to 660V, area to the rated connection 25mm2 connection between the wires in the circuit. TD, JH9 series terminals are screw connections, wire end crimp u or o-end can be connected to the Terminal. Terminal block with protective cover, c-type mounting rail installation.