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A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by current in excess of that which the equipment can safely carry (overcurrent). Its basic function is to interrupt current flow to protect equipment and to prevent fire.
An arc-fault circuit interrupter (AFCI) or arc-fault detection device (AFDD) [1] is a circuit breaker that breaks the circuit when it detects the electric arcs that are a signature of loose connections in home wiring. Loose connections, which can develop over time, can sometimes become hot enough to ignite house fires.
In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI/IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations.
ABB Group is a Swedish-Swiss [6] [7] [8] multinational electrical engineering corporation. Incorporated in Switzerland as ABB Ltd., and headquartered in Zurich, [1] it is dual-listed on the SIX Swiss Exchange in Zurich and the Nasdaq Nordic exchange in Stockholm, Sweden. [9]
A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...
residual current circuit breaker A circuit breaker that detects unbalance of phase currents due to ground fault. resistive circuit A circuit containing resistive elements only, no capacitors or inductors. resistivity The property of a material that impedes current flow. resistor A circuit component that primarily has resistance. resolver