Forum: WHALER
  ContinuousWave
  Whaler
  Moderated Discussion Areas
  ContinuousWave: Small Boat Electrical
  Circuit Breaker for Boston Whaler MONTAUK

Post New Topic  Post Reply
search | FAQ | profile | register | author help

Author Topic:   Circuit Breaker for Boston Whaler MONTAUK
The Chesapeake Explorer posted 07-11-2009 10:20 PM ET (US)   Profile for The Chesapeake Explorer   Send Email to The Chesapeake Explorer  
I bought a 20 amp circuit breaker [as a replacement for the original on a 1987 Boston Whaler Montauk]. What amps would I really need for lights and radio?

Thieves stole another battery and I was messing with my Cole-Hersee master switch.I got my wires mixed up cause there was no battery and when i put it in there were no lights on the boat, which I hashed out but in doing so I took apart a switch located in the rear with a push button under a plastic covering. Its been there 20 years and a few years back the bus bar it goes to corroded and i replaced it. In working with this "switch" the end broke off. I thought it was a circuit breaker for some 20 years. A trip to a electronics store and they could not tell the amps of my "circuit breaker" as there is nothing on it to tell the amp rating. The guy said "maybe its a switch". Is it a switch? Or circuit breaker?

I have the big master switch. Should I just get a switch push in and out like the original. Why was this switch put there in the beginning if it is a switch?

jimh posted 07-12-2009 08:35 AM ET (US)     Profile for jimh  Send Email to jimh     
On a small boat like a Boston Whaler MONTAUK 17, the primary power distribution circuit from the battery at the stern to the helm console was protected by a circuit breaker. Typically the circuit breaker was mounted in a small plastic enclosure on the cockpit bulwark near the transom. The rating of the circuit breaker typically would have been 25-amperes or more. Typically the circuit breaker was an E.T.A brand:

http://www.e-t-a.com/

The current demand of lights and radio would typically be:

RADIO = 7 amperes on transmit

NAVIGATION LIGHTING = 10 amperes maximum, depending on the type of lamps and the number of lamps

The Chesapeake Explorer posted 07-12-2009 10:53 PM ET (US)     Profile for The Chesapeake Explorer  Send Email to The Chesapeake Explorer     
Thats It Jimh thats what I have. So its 25 amp.. Thanks for that info!
The Chesapeake Explorer posted 07-12-2009 11:01 PM ET (US)     Profile for The Chesapeake Explorer  Send Email to The Chesapeake Explorer     
Actually I will get a 30 amp breaker.. Thanks
Chuck Tribolet posted 07-12-2009 11:27 PM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
What gauge is the wire? That determines the size of the
breaker. You want the breaker to trip before the wire gets
hot.

The gauge is should be printed on the wire. Find a place
that's been out of the sun.

Breaker size is NOT determined by load. Well, not at least
directly. Load determines minimum wire size, wire size
determines maximum breaker size.


Chuck

jimh posted 07-12-2009 11:34 PM ET (US)     Profile for jimh  Send Email to jimh     
The ampere rating is usually imprinted right on the plunger top.
Anjin posted 07-13-2009 12:35 AM ET (US)     Profile for Anjin  Send Email to Anjin     
I used a 30 amp on my Montauk 17.
jimh posted 07-13-2009 12:37 AM ET (US)     Profile for jimh  Send Email to jimh     
Typically the classic Boston Whaler boat primary power distribution from the battery to the helm console used 8-AWG conductors.
Blackduck posted 07-13-2009 01:42 PM ET (US)     Profile for Blackduck  Send Email to Blackduck     
Most instrument panels on Montauks of this era were marked 30 amp, in white lettering, next to where the Cole Hersee breaker was installed.
The Chesapeake Explorer posted 07-13-2009 11:30 PM ET (US)     Profile for The Chesapeake Explorer  Send Email to The Chesapeake Explorer     
The circut breaker on my boat is a E.T.A as Jimh stated.And looks just like the photo of the one he posted. It has no amp rating. It says AMP A only 28 V dc on the other side 200 some volts AC. The button pushes in and out disconnecting the power like a switch but it has a white line like its a circut breaker. The Whaler is a 1987 boat built in May 87. Thanks for all the info. As said I will go for a 30 amp breaker switch with a silicon boot on the outsidescrew thred to waterproof it .
striper swiper posted 07-14-2009 12:15 AM ET (US)     Profile for striper swiper    
ETA brakers can be purchased from allied electronics.com
striper swiper posted 07-14-2009 09:13 AM ET (US)     Profile for striper swiper    
This is where I purchased my eta for my 18 outrage .
They were very helpful and were willing to sell to an individual instead of only to wholesalers.
And its OEM , what whaler put in in the first place.
Allied electronics 1 800 433 5700
alliedelec.com

Post New Topic  Post Reply
Hop to:


Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.