Abstract: An adapter for a housing opening in a housing of a splice block can include an adapter body that is movably coupled to the housing and includes a conductor passage. The adapter body can be selectively movable between a closed configuration and an open configuration, in which the conductor passage is, respectively, in and out of alignment with the housing opening.

Abstract: A modular distribution block for a high-current power system includes a ground module and one or more phase modules. The ground module includes a grounding clamp configured to electrically and mechanically connect to a DIN rail and to retain the distribution block in place with respect to the DIN rail. The phase module(s) include: a conductive splice block that connects a line current from a power supply to a powered device; and, a first surge protective device (SPD) terminal and a second SPD terminal configured to together receive and electrically connect to an SPD module, such connection forming a surge protection circuit within the distribution block, the first SPD terminal electrically connecting to the bus terminal and the second SPD terminal electrically connecting, to the splice block. A rigid bus bar electrically connects the ground module to the phase module(s).

Abstract: A modular distribution block for a high-current power system includes a ground module and one or more phase modules. The ground module includes a grounding clamp configured to electrically and mechanically connect to a DIN rail and to retain the distribution block in place with respect to the DIN rail. The phase module(s) include: a conductive splice block that connects a line current from a power supply to a powered device; and, a first surge protective device (SPD) terminal and a second SPD terminal configured to together receive and electrically connect to an SPD module, such connection forming a surge protection circuit within the distribution block, the first SPD terminal electrically connecting to the bus terminal and the second SPD terminal electrically connecting, to the splice block. A rigid bus bar electrically connects the ground module to the phase module(s).

Abstract: An antitheft sensor system includes a covering which is placed around an object to be protected (such as a cable). Sensor wires are located in the covering. Signals are sent through the sensor wires and the wires are monitored for changes in the signals (such as changes in wire resistance) that may indicate theft or tampering. The system allows determination of theft or tampering of objects which may be operated only infrequently, such as conductors bridging rails.