Welcome, Guest. Please login or register.
December 30, 2024, 12:24:08 AM

Login with username, password and session length

Recent Topics

[December 28, 2024, 09:26:24 PM]

[December 28, 2024, 01:42:55 PM]

[December 24, 2024, 06:15:59 PM]

[December 15, 2024, 06:25:42 PM]

by Spot
[December 11, 2024, 04:15:07 PM]

[December 09, 2024, 11:54:27 AM]

[December 06, 2024, 04:28:35 PM]

[December 03, 2024, 07:14:34 AM]

[November 29, 2024, 08:35:06 PM]

[November 28, 2024, 08:59:55 AM]

[November 25, 2024, 11:16:05 AM]

[November 25, 2024, 07:55:58 AM]

by [WR]
[November 15, 2024, 04:31:26 PM]

[November 14, 2024, 08:03:33 AM]

[November 08, 2024, 10:43:34 AM]

Picture Of The Month



Pepper and rogerdodger with a nice fall coho

Topic: What amperage switch for battery box?  (Read 1639 times)

0 Members and 1 Guest are viewing this topic.

kenner

  • Plankton
  • *
  • Location: Springfield, OR
  • Date Registered: Jan 2019
  • Posts: 8
Hello All!

I want to put an on/off switch on my battery box.  The battery is 50ah.  The Newport Vessels Yak motor has a 30 amp breaker.

Do I need a switch with greater than 30amp rating?  Wouldn't the switch blow at the same time as the breaker? 

Separately, but kind of related...  If I simply have a plug in, w/out an on/off switch, will the battery drain, when the motor's not plugged in?

Am I thinking incorrectly 'bout the weakest link blowing first?

Thanks, All!


Pinstriper

  • Sturgeon
  • *******
  • Location: Outer Southwest Portlandia
  • Date Registered: May 2015
  • Posts: 1043
Size the wiring and switch for the largest total draw.

Size the fuse for the smallest size of wire or switch in the system.

You can always add another, smaller fuse, just on the path to individual devices that you want to blow before the device, should the device short out.


Let's eat, Grandma !
Let's eat Grandma !

Punctuation. It saves lives.
........................................................................


kenner

  • Plankton
  • *
  • Location: Springfield, OR
  • Date Registered: Jan 2019
  • Posts: 8