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Simple Electrical Questions

I'm working on hooking up new AGM batteries, new smart charger/convertor, cleaning up electrical connections, etc.  Presently working on the isolator board (on my coach, located driver side aft of coach battery bay).  On this board I find the Isolator, the Boost Solenoid, the Aux Start Solenoid, 2 plastic relays, and 2 little rectangular devices.  On my wiring diagram they are labeled "15A".  I assume these are circuit breakers?

Questions (I tried using "search function" but I soon get lost in the maze of old and new posts.  Apparently EVERYBODY has electrical problems sooner or later):

1.  The little devices (circuit breakers?) labeled 15A:  Are they "auto-reset" or "manual reset"?  I would like to carry some spares.  Is there a forum recommended "best" part number or source?

2.  The plastic relays:  Anything special about these?  Is there a forum recommended "best" part number or source? 

3.  The 2 solenoids:  Can you use the same part number in both positions?  Anybody have a favorite source/part number for these 2 solenoids?

Thanks for the help in advance.  I'm trying to slowly build up a "spare parts" supply, and I want to stock it with the best/most current items available. 

PS: I already know about the highly recommended Blue Sea 9012 ignition solenoid.  It is on my "shopping list".
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Simple Electrical Questions

Reply #1 –
Quote
I'm working on hooking up new AGM batteries, new smart charger/convertor, cleaning up electrical connections, etc.  Presently working on the isolator board (on my coach, located driver side aft of coach battery bay).  On this board I find the Isolator, the Boost Solenoid, the Aux Start Solenoid, 2 plastic relays, and 2 little rectangular devices.  On my wiring diagram they are labeled "15A".  I assume these are circuit breakers?

Questions (I tried using "search function" but I soon get lost in the maze of old and new posts.  Apparently EVERYBODY has electrical problems sooner or later):

1.  The little devices (circuit breakers?) labeled 15A:  Are they "auto-reset" or "manual reset"?  I would like to carry some spares.  Is there a forum recommended "best" part number or source?
Yep those are auto reset. In a pinch as they rarely fail you can pull one out of the main panel to use temporarily.
2.  The plastic relays:  Anything special about these?  Is there a forum recommended "best" part number or source? 
These are standard BOSCH type trelays, available everwhere,
3.  The 2 solenoids:  Can you use the same part number in both positions?  Anybody have a favorite source/part number for these 2 solenoids?
These are intrerchangeable and also interchange with the main ignition solenoid located in the front main panel.
Thanks for the help in advance.  I'm trying to slowly build up a "spare parts" supply, and I want to stock it with the best/most current items available. 

PS: I already know about the highly recommended Blue Sea 9012 ignition solenoid.  It is on my "shopping list".

Good luck, looks like you are headed the right way.
Gary B

Re: Simple Electrical Questions

Reply #2 –
Way to go Gary, you have given him great information
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Simple Electrical Questions

Reply #3 –
Thanks Gary for the response.  So nobody has any part numbers or good "favorite" source for the circuit breakers and solenoids?
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Simple Electrical Questions

Reply #4 –
Oops, I missed something here.  Circuit breakers are manual reset, all that I'm familiar with anyway.  The auto reset devices are a thermal device that trips on overload and automatically resets when they cool off.  Some motors and such have them also.  The breakers in the breaker panels are manual reset.  What am I missing??  Thanks and have a great day  ----  Fritz
Fritz & Kathy Johnson
1991 36'

Re: Simple Electrical Questions

Reply #5 –
These 12 volt breakers are auto reset, There are some 12 volt breakers that have a manual reset button, but these do not. We used to use a st80 or st81 solenoids from napa, can't remember which one is the best one.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Simple Electrical Questions

Reply #6 –
The circuit breakers are for the remote start and also for A/C They are Bussman type and you can buy them anywere
 The relays are part of the A/C circuit and again are avail;able anywer. The 2 solenoids you do not need to buy, you just take them apart and clean copper contacts inside. I have done this to the ones on 240 and now work fine. 30 min job for each-simple.
John H
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Simple Electrical Questions

Reply #7 –
Fritz:  the circuit breakers being discussed are the ones on the isolator board.  Look on your wiring diagram and you will see them.

Thanks to Ron and John H for the more detailed info.  Exactly what i was looking for.

Also, if I DID want to replace the solenoids (or buy a spare), I finally tracked down the most recent "general consensus" forum answer to which model is the best: the Cole Hersee 24213.

Solenoids & Relays | Steel & Phenolic Body Solenoids24213 | Cole Hersee -

OR, how about this one (comes in a really cool RED color)?

Solenoids & Relays | Steel & Phenolic Body Solenoids24213-01 | Cole Hersee -

More info on the 24213 product line:

http://www.littelfuse.com/compare-products.aspx?from=series
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Simple Electrical Questions

Reply #8 –
Quote
Oops, I missed something here.  Circuit breakers are manual reset, all that I'm familiar with anyway.  The auto reset devices are a thermal device that trips on overload and automatically resets when they cool off.  Some motors and such have them also.  The breakers in the breaker panels are manual reset.  What am I missing??  Thanks and have a great day  ----  Fritz
FRitz, Look at the main panel in front of the passenger seat.  Those rows of little metal boxes are auto reset breakers, lots of them.  In fact each circuit has one.  If they trip you just wait til they cool and they reset.  At least that's how mine is.
Gary B

Re: Simple Electrical Questions

Reply #9 –
Gary  ----  Thank you, I'll look for some of those.  There is no panel on the 91GV that is like yours, but there are little boxes that look like relays in the dash on the drivers side.  Maybe those are really breakers.  I'll look closer at them.  Thanks and have a great day  ----  Fritz
Fritz & Kathy Johnson
1991 36'
 

Re: Simple Electrical Questions

Reply #11 –
 Chuck, if you do your own r+r of the solenoids you can seal the top (after peening it over again) like I did with epoxy and then you can paint it any colour you like ^.^d
All you need to take them apart is a smallish screwdriver (to get under rim of top) and a hammer to hit the screwdriver. Clean the contacts then put top on and peen over to hold. Fill rim with epoxy and let set-done.
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.