Need help with Relay for auto start CX-900 Lamp House

[Tim Reed]

...I guess I will have to add the diode myself as the relays dont have them inside.

Is the diode soldered to the bottom of the relay socket? Regardless, you have a 110VDC coil.... plug that baby in!

I would, however, plan to do what Mark and Josh said.... parallel a zener diode and ceramic disc cap together, and place them in series with the relay coil. It's a good, reliable method.

[Frank Raia]

Thank you Tim

[Frank Raia]

Is the diode soldered to the bottom of the relay socket? Regardless, you have a 110VDC coil.... plug that baby in!

I would, however, plan to do what Mark and Josh said.... parallel a zener diode and ceramic disc cap together, and place them in series with the relay coil. It's a good, reliable method.

I plugged it in a it does auto strike! Yay! It is minus the diode and cap. Is that okay for now? What value diode and cap do you suggest? Again thank you for your help

[Frank Raia]

Thank you everyone for your help. The lamphouse is auto starting!

[Tim Reed]

What value diode and cap do you suggest? Again thank you for your help

A 75V zener and any high voltage ceramic disc capactor (like a 1000V, .01 uF)

[Josh Jones]

If your using a 110VDC coil relay, you don't need the zener diode or capacitor.

[Frank Raia]

UPDATE: The 110VDC coil worked without the diode or capacitor.