A-2 Capacitor 11-696107-000 .50 uf

[batbowler]

This is the capacitor for the magnetic clutch to selenium rectifier. Can these be bought at grainger or radio shack? Thanks, Bruce

[Ted]

Not sure about grainger, and Radio Shack doesn't have near the electronic parts it used to have. But these and many others have them.

http://www.alliedelec.com/

http://www.digikey.com/

http://www.hosfelt.com/

http://www.mcmelectronics.com/

[Marty Murphy]

I know a few people that dont like this idea BUT Brunswick says it is no longer required to be used in the circut and can be eliminated. (from the new manuals they hand out at the electronic classes they run) We talked about this before somewhere on here.

Marty - Pro Bowl West

[Mechanick]

This is the capacitor for the magnetic clutch to selenium rectifier. Can these be bought at grainger or radio shack? Thanks, Bruce

I have bought them in the past from Mouser.

http://ca.mouser.com/

I know a few people that dont like this idea BUT Brunswick says it is no longer required to be used in the circut and can be eliminated. (from the new manuals they hand out at the electronic classes they run) We talked about this before somewhere on here.

Marty - Pro Bowl West

Maybe to boost sales of cross conveyor microswitches.....

To tell the truth I couldn't say for certain if it is needed or not. I recall the purpose of it being something like it prevents arching in the cross conveyor microswitch contacts (DC). This arching could result in the contacts sticking.....but the capacitor is such an inexpensive part, that is supposed to increase the life of a more expensive microswitch (not to mention some pins from possible belt burns from turn pan jams), so I figure why not have it in there anyways.

[ewen]

I believe the capacitor was added when the cross conveyor micro switch actually switched the ac side of the rectifier instead of the dc side which is common now. That is most likely why Brunswick would advise that it is okay to remove capacitor.

[jmac33]

OR you could just install the silicon rectifiers and eliminate the need

[wepauls]

10 out of 26 lanes in my old center had no capacitor and CCs ran just fine

[SoCalTom]

To tell the truth I couldn't say for certain if it is needed or not.

Basically, a capacitor has three functions: 1) they block AC voltages, as a filter; 2) they act like a battery, and can supply a voltage for a short period of time; 3) they pass DC voltages.

In the case about the capacitor in the electrical box, it acts as a filter by blocking a reverse voltage from the magnetic clutch. Trying to keep this as simple as possible, when a magnetic field collapses, it will produce a voltage. (That's how generators work.) That could possibly double the supply voltage coming from the electrical box. (It's rare, but it does happen.) When that happens, the voltage coming from the electrical box will collide with the voltage returning from the magnetic clutch, and produce an arc. That arc can jump between the contacts of the cross conveyor microswitch. If that happens enough, the arc can weld the contacts closed, essentially burning out the CC microswitch. If that happens, the pin wheel will keep running even if there are two pins in the cross conveyor.

Changing the original selenium rectifier to a diode bridge will not solve the problem, as both rectify AC to (pulsating) DC. The electrical box capacitor is necessary; first, to filter out any arcing current; and, smooths out the pulsating DC current. Personally, I would replace it, if it has failed.

[Lolo]

SoCalTom. Dont you have the AC-DC functions of a capacitor reversed?

[SoCalTom]

SoCalTom. Dont you have the AC-DC functions of a capacitor reversed?

Yup, you are right. Capacitors pass AC and block DC voltages. The rest of the functions are correct. I must have been asleep when I posted that.

[PJ]

Just call it a senior moment, Tom.