Certain Application in Control and Measurement circuits necessitate locating operating faults quickly without disconnecting the conductors. elmex offers a range of disconnecting type terminal blocks which can be used to disconnect the continuity without actually removing the wires. When the covers are closed the captive nut positions itself on the threaded bolt. The nuts are then tightened with a screw-driver, to establish the connections. The covers fully shroud the live metal parts and the insulated lug in the conductor clamping area, ensuring safety against electric shock hazards. Since the nuts are captive in the hinged covers, (i.e. No need to open them up), this type of construction facilitates quick and convenient way of making connections.