This circuit uses DC power supply, usually the main circuit does not work, saving power. As shown in the figure, 555 and R2, C1, VT1, and R1 form a monostable delay circuit. VT1 and R1 form a mouse touch switch. When the mouse touches A, it is equivalent to a few K~ tens of K resistance to the ground. VT1 changes from off to on, 555 pin 2 is low, so IC1 is set, J1 is connected, at the same time, VT2 is on, VT3, VT4 multivibrator is oscillating, pushing VT7, VT8 The push-pull driver stage is caused to generate a high voltage at the secondary of the step-up transformer T1, and is applied to the contacted relay contact J1-1 to kill the mouse. At the same time, an audible alarm signal is issued.
KNL5-100 Residual Current Circuit Breaker
KNL5-100 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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