As shown, 555 and R1, R2, and C form an astable multivibrator. f=1.44/(R1+2R2)C, the oscillator frequency of the illustrated parameter is about 1Hz, and the duty ratio is 50%. The high-low square wave of its output drives LED1 and LED2 to emit light. Let it take turns "blinking", R3, R4 are limiting protection resistance.
KNL4-100 Residual Current Circuit Breaker
KNL4-100 Moulded Case Circuit Breaker is MCCB , How to select good Molded Case Circuit Breaker suppliers? Korlen electric is your first choice. All moulded Case Circuit Breakers pass the CE.CB.SEMKO.SIRIM etc. Certificates.
Moulded Case Circuit Breaker /MCCB can be used to distribute electric power and protect power equipment against overload and short-current, and can change the circuit and start motor infrequently. The application of Moulded Case Circuit Breaker /MCCB is industrial.
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