I have seen these discussed, but The contactor sources, including Kelly and several Ev parts pages, sell several type of contactors, but none with magnetic blowouts. Or the contactors need the blowouts ordered seperately. Who sells them as a package?
Bill
Most of the industrial suppliers (A-B, Cutler Hammer, Sq-D) sell DC rated contactors with arc quench and magnetic blowouts but they are VERY expensive. I had a quote of $2700 for one.
tommyt
Allbright makes them. I have one and they are far from $2,500 bucks each.
http://curtisinst.com/index.cfm?fuseaction=cProducts.dspDcContactors