With AC Low Voltage Circuit Breaker Power Indicator Lighting Circuit

摘要

The present invention relates to an AC low voltage circuit breaker (Earth Leakage circuit breaker) and a wiring breaker (NFB: no-fuse breaker). Since the current breaker does not have a power indicator lamp, a lighting circuit is attached to the breaker. This makes it easy to see if power is being supplied to the load. The power display lamp circuit is composed by connecting 100㏀ 0.25W resistor and LED (Light Emitting Diode) to operate at AC 220V. Especially, the appearance of circuit breaker is better than Ne (lamp) by using LED. I can construct it beautifully. In addition, according to the purpose of the breaker, the power consumption of the display lamp should be minimized. Therefore, when the breaker always supplies power to the load, the LED will light only when the breaker is turned off.