I have the circuit in the picture of a pushbutton interlock on a test bed setup that I'm experimenting with. I was hoping someone to show me how I would go about making another set of push button controls for a different location. That is to add and second set of two start push buttons and one stop push button. Everything I've tried makes one or the other set of controls not work.
- \$\begingroup\$ What do you define as remote? \$\endgroup\$itprorh66– itprorh662025-07-27 15:20:04 +00:00Commented Jul 27 at 15:20
- \$\begingroup\$ Remote just means another set of control, that is 1 stop button and 2 start button connected to the circuit at another location 15ft away. \$\endgroup\$Lynx Fan– Lynx Fan2025-07-28 01:22:02 +00:00Commented Jul 28 at 1:22
- \$\begingroup\$ It might be easier if you have a mechanical interlock between the contactors. This would eliminate the electrical interlock and make the solution simpler. \$\endgroup\$Kartman– Kartman2025-07-29 07:19:27 +00:00Commented Jul 29 at 7:19
2 Answers
Use a schematic to represent your circuit rather than a wiring diagram. It's much easier to follow.

simulate this circuit – Schematic created using CircuitLab
Figure 1. Original circuit.

Figure 2. Dual control circuit. SW1 & 2 are original and SW3 & 4 are remote.
It would seem to me, the simplest solution would be to add a parallel set of switches. Something along the lines of the diagram shown below: Note: This version picks up the missing wire and also incoporates a serial connection for the st
op switches.

simulate this circuit – Schematic created using CircuitLab
Schematic by Transistor.
- \$\begingroup\$ Hey, just want to acknowledge your response. I will get a chance to try this tomorrow in the lab, will let you know if this works. Thanks. \$\endgroup\$Lynx Fan– Lynx Fan2025-07-30 02:04:16 +00:00Commented Jul 30 at 2:04
- \$\begingroup\$ Just letting you know that I tried, and it did not work. Thanks for the suggestion though. \$\endgroup\$Lynx Fan– Lynx Fan2025-08-02 14:47:16 +00:00Commented Aug 2 at 14:47
- \$\begingroup\$ What do you mean it did not work? What specific aspect failed? \$\endgroup\$itprorh66– itprorh662025-08-02 19:49:13 +00:00Commented Aug 2 at 19:49
- \$\begingroup\$ I just noticed there is a wire missing in my diagram. Specifically a wire from C2 NO-T to both Switch 2 NO contacts on the lower right side. \$\endgroup\$itprorh66– itprorh662025-08-02 19:52:17 +00:00Commented Aug 2 at 19:52
- \$\begingroup\$ See revised diagram \$\endgroup\$itprorh66– itprorh662025-08-02 19:57:22 +00:00Commented Aug 2 at 19:57
