Adjustable Timer Circuit Diagram with Relay Output The above proposed circuit is a 1-10 minute timer Pot is minimum it gives 1 minute delay,where maximum value of pot can produce 10 minutes. Time period can be calculated using formula T= (R1+R2)*C1nds When Pot is maximum R is 120K+1 ≈ 1 (approximately) and C1=470uf Time Delay Relay Wiring Diagram | Free Wiring Diagram Assortment of time delay relay wiring diagram. A wiring diagram is a streamlined conventional photographic depiction of an electric circuit. It reveals the elements of the circuit as simplified shapes, as well as the power and also signal links between the gadgets. Timer And Contactor Wiring Diagram Pdf - Wiring Diagram On delay timer circuit diagram wiring diagram contactor with push button circuit diagram of delay timer on off power off delay timer circuit diagram 2 way lighting circuit triggering transformer push button fan switch light activated switch circuit diagram wd081 text. Each component should be placed and linked to other parts in particular manner. Simple Delay Timer Circuits Explained | Homemade Circuit The 4 diode idea would effectively work for a delay ON timer, but since here we are discussing a delay OFF timer, the idea would be disadvantageous. the base resistor directly influences the collector/emitter current specs. as it increases the collector/emitter current delivering capability proportionately decreases. Electronic timer - Siemens PDF file• OFF delay timers are with aux. voltage (refer wiring diagram fig.1). Same potential must be applied to A1 and B1, or A3 and B3. • With the two-voltage version, only one voltage range must be connected. • The activation of loads parallel to the start input is not permissible when using AC control voltage (see diagram below).