Patent ID: 8139337
Filing Date: 2012-03-20
Classification: G08B,H05K

Abstract:
1. A system for reducing electrically-caused fires in wiring devices comprising: a wiring device having a terminal for attaching a wire; a first electronic temperature sensor in close proximity to the terminal; a second electronic temperature sensor; circuitry electrically connected to the first and second temperature sensors, the circuitry being configured to receive temperature information from the first and second temperature sensors and to interrupt power to the wiring device without interrupting power to the circuitry when a reference temperature is exceeded at the temperature sensor and wherein the circuitry is further configured to detect a temperature differential between the first temperature sensor and the second temperature sensor and to interrupt power to the wiring device when the temperature differential exceeds a reference temperature differential, the circuitry further comprising additional safety circuitry for the wiring device, the additional safety circuitry selected from the group of: