auto toggle question

[Reit38]

i want on1 to turn on light 1 on a toggle switch and on2 to turn on light1 and light2 on the same switch? how would this be done?

im assuming 1way diode ?

 

[Reit38]

got it needed to use a diode

 

[nehog]

Voltage? DC or AC? Size of lamps?

 

[ray38]

If you can live with a 15A switch, look at a Honeywell 2TL1-10. It is a mil-spec toggle, double pole/double throw.
Bear with me on this description...
One side is configured (starting with the toggle down), OFF - ON - ON. Other side is OFF - OFF - ON. You get toggle down, both circuits off. Toggle centered, one circuit on, one circuit off. Toggle up, both circuits on.
Be sure to check both sides with meter to determine which side is which. Terminals are numbered - 1&2 are one circuit, 4&5 are the other.
Only down side -cost is north of $30...

Ray

 

[rsanter]

Program a PLC to do that for you

Bob

 

[C96]

If I understand your needs correctly, all you need is a 3 way switch

• Common terminal = power
• Traveler terminal (a) = light 1
• Traveler terminal (b) = light 1 & light 2

 

[justsam]

Ray38,
That is an interesting switch configuration. I am familiar with DPDT, or DPDT center off, but I did not know of this. It could be done with a regular DPDT if no OFF position is needed, or get a DPDT center off.

http://datasheet.octopart.com/2TL1-10-Honeywell-datasheet-8818235.pdf

 

[Charles (in GA)]

Just ignore the notes about powering primary and secondary ballasts, they were for a different thread a long time ago. This circuit, as I implemented it, was powered by a multi-wire branch circuit. It can be easily powered by a single circuit, by taking the red wire in the upper right, and the black wire in the lower left, which are L1 and L2 supplying the switch, and wirenuting them together to the same circuit breaker.

The red wires in the upper left supply one light, no matter if the switch is up or down, and the black wire in the lower right supplies the other light, in this case, only when the switch is up.

Charles