Abstract: A system includes a first communication network, such as the Internet, having a client; a second INCOM communication network including a plurality of communicating devices; and a server. The server includes a first Ethernet transceiver communicating with the Internet, a second INCOM transceiver communicating with the INCOM communication network and the communicating devices, and a processor cooperating with the first and second transceivers. The processor being adapted to learn at least some of the communicating devices, to periodically obtain a plurality of values from the communicating devices, to associate the values with a web page, to communicate the web page to the client over the Internet, and to periodically communicate the values associated with the web page to the client over the Internet.

Abstract: A three-pole circuit breaker is for a three-phase load circuit including three phases and a line cycle. The three-pole circuit breaker includes three poles, each of which includes a set of separable contacts for a corresponding one of the phases of the three-phase load circuit, and a current sensor adapted to determine a plurality of current samples for the corresponding one of the phases during the line cycle. An operating mechanism is adapted to open and close the sets of separable contacts. A trip mechanism cooperates with the operating mechanism and is adapted to determine three current values from the current samples of the poles during at least about one half of the line cycle and to analyze differences among the current values, in order to detect a phase-to-phase arcing fault or a phase-to-ground arcing fault, and to responsively trip open the sets of separable contacts.

Abstract: A trip unit for a circuit breaker for an electrical circuit includes a current transformer adapted to sense a current flowing in the electrical circuit and to provide a signal representative of the current. A microprocessor includes a memory, a rotary selector switch, and a routine evaluating the sensed current with respect to a plurality of predetermined current/time conditions, such as long delay protection, override protection, short delay protection and/or ground fault protection, and responsively generating a trip signal. The rotary selector switch has a plurality of positions. Each of the positions selects a first time value, such as a short delay time for a first one of the predetermined current/time conditions, and selects a second time value, such as a ground fault time, for a different second one of the predetermined current/time conditions.