Gallery of Lights

Lanterns/Fixtures => Modern => Topic started by: gramirez2012 on October 26, 2011, 10:19:20 PM

Title: Capacitor for 175 CWA
Post by: gramirez2012 on October 26, 2011, 10:19:20 PM

What are the capacitor values for a 175w CWA (mercury) ballast?

Thank you.

Title: Re: Capacitor for 175 CWA
Post by: Vince on November 23, 2011, 08:44:46 PM

The capacitor value can slightly vary from one manufacturer to another. Most 175W models use a cap with a value around 10 to 12.5uF. As of the voltage rating, it is safe to use a cap rated at least 300V.

Hope this helps!

Title: Re: Capacitor for 175 CWA
Post by: lights*plus on November 23, 2011, 09:15:29 PM

This for any single tap 120volt CWA H39 ballast?

Title: Re: Capacitor for 175 CWA
Post by: MercuryVapor175 on February 16, 2012, 04:48:20 PM

MV ballast, it has a 10 uf 400v dry-film capacitor, and it runs 175w MV/MH.

Title: Re: Capacitor for 175 CWA
Post by: joe_347V on February 20, 2012, 07:25:31 AM

I've seen caps on true 175w mercury ballasts run as high as 17.5uF 300V but it varies by model and manufacturer.