Example embodiments relate to power cords for electrically connecting one or more devices to an electrical source. A power cord may include a first end configured to couple to an electrical source and a second end configured to electrically couple to a device. A ground fault circuit interrupter (GFCI) may be coupled to the power cord between the first end and the second end such that the GFCI is configured to control a flow of electricity through the power cord to the device when the second end of the power cord is electrically coupled to the device. The GFCI may include a set of light emitting diodes (LEDs) with a first LED configured to illuminate when the GFCI is preventing the flow of electricity, and wherein a second LED is configured to illuminate when an output side of the GFCI is outputting electricity.

Example embodiments relate to power cords for electrically connecting one or more devices to an electrical source. A power cord may include a first end configured to couple to an electrical source and a second end configured to electrically couple to a device. A ground fault circuit interrupter (GFCI) may be coupled to the power cord between the first end and the second end such that the GFCI is configured to control a flow of electricity through the power cord to the device when the second end of the power cord is electrically coupled to the device. The GFCI may include a set of light emitting diodes (LEDs) with a first LED configured to illuminate when the GFCI is preventing the flow of electricity, and wherein a second LED is configured to illuminate when an output side of the GFCI is outputting electricity.

Multi-pole and single-pole circuit breakers include a housing and a reset lockout mechanism disposed within the housing. The reset lockout mechanism disables electrical communication between line and load terminals of the circuit breaker if a predefined condition exists. Some circuit breakers include a single actuator, transition between ON and OFF states, and are capable of performing test functions. The test functions may involve testing AFCI and/or GFCI functions of the circuit breakers. The test functions may be performed when the circuit breaker transitions from an OFF state to an ON state. Some circuit breakers including a reset lockout mechanism may be powered only on its line side. Some circuit breakers provide an electrical indication when they are in the OFF state.

Multi-pole and single-pole circuit breakers include a housing and a reset lockout mechanism disposed within the housing. The reset lockout mechanism disables electrical communication between line and load terminals of the circuit breaker if a predefined condition exists. Some circuit breakers include a single actuator, transition between ON and OFF states, and are capable of performing test functions. The test functions may involve testing AFCI and/or GFCI functions of the circuit breakers. The test functions may be performed when the circuit breaker transitions from an OFF state to an ON state. Some circuit breakers including a reset lockout mechanism may be powered only on its line side. Some circuit breakers provide an electrical indication when they are in the OFF state.

A power cord with leakage current detection and interruption (LCDI) function includes at least two power supply lines, at least two insulating layers respectively covering the at lease two power supply lines, at least two leakage current detection lines respectively disposed around the at least two insulating layers, including a first leakage current detection line and a second leakage current detection line, at least one connector line, electrically coupled to the first leakage current detection line and/or the second leakage current detection line, and at least one insulating structure, covering at least one of the at least two leakage current detection lines, to electrically insulate the first and second leakage current detection lines from each other.

Ground-fault circuit interrupter positioned between energy controlled supply circuit and load circuit which includes fault detection circuit that senses ground path current leakage to the load circuit, fault processing circuit that detects presence of fault and generates fault output signal when fault detected, and control circuit switch connected to fault processing signal output, wherein control circuit switch is opened by presence of fault output signal, thus isolating load circuit from supply circuit. Preferably fault processing circuit and control circuit are optically linked, such that when fault is detected, control circuit switch is opened by optical fault output signal, thus isolating load circuit from the supply circuit. Circuit interrupter may couple another circuit interrupter via power distribution control unit, optionally manageable remotely via automated control interface.

Ground-fault circuit interrupter positioned between energy controlled supply circuit and load circuit which includes fault detection circuit that senses ground path current leakage to the load circuit, fault processing circuit that detects presence of fault and generates fault output signal when fault detected, and control circuit switch connected to fault processing signal output, wherein control circuit switch is opened by presence of fault output signal, thus isolating load circuit from supply circuit. Preferably fault processing circuit and control circuit are optically linked, such that when fault is detected, control circuit switch is opened by optical fault output signal, thus isolating load circuit from the supply circuit. Circuit interrupter may couple another circuit interrupter via power distribution control unit, optionally manageable remotely via automated control interface.

A system comprising a meter and a circuit breaker, the electricity meter comprising: a primary processing component designed to acquire a primary power supply parameter and to produce, from the primary power supply parameter, a primary command intended to control the opening or closure of a line; a primary transceiver designed to transmit the primary command; the circuit breaker comprising: a disconnection unit; a bistable relay designed to open or close the disconnection unit; a secondary receiver designed to receive the primary command; a secondary processing component designed to acquire the primary command and to control the bistable relay so as to open or close the disconnection unit on the basis of the primary command.

The present disclosure relates to an earth leakage breaker and an arc detection apparatus attachable/detachable to/from the earth leakage breaker. An earth leakage breaker and an arc detection apparatus according to one embodiment of the present disclosure comprise: a body of the earth leakage breaker; and an arc detection module attachably/detachably coupled to the body of the earth leakage breaker so as to detect an arc current, wherein the arc detection module comprises: an arc detection unit connected to a first load side terminal of the body of the earth leakage breaker so as to detect an arc current flowing through a line; a control unit for determining an arc current on the basis of an arc detection signal delivered by the arc detection unit; and an output unit for outputting a signal or a current, according to a control signal of the control unit.

The present disclosure relates to an earth leakage breaker and an arc detection apparatus attachable/detachable to/from the earth leakage breaker. An earth leakage breaker and an arc detection apparatus according to one embodiment of the present disclosure comprise: a body of the earth leakage breaker; and an arc detection module attachably/detachably coupled to the body of the earth leakage breaker so as to detect an arc current, wherein the arc detection module comprises: an arc detection unit connected to a first load side terminal of the body of the earth leakage breaker so as to detect an arc current flowing through a line; a control unit for determining an arc current on the basis of an arc detection signal delivered by the arc detection unit; and an output unit for outputting a signal or a current, according to a control signal of the control unit.