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Markhunter1097 · 21-10-2018, 21:07

Race boat I sail on uses one to connect the portable battery charger to the boat batteries

Milko Berben · 22-10-2018, 07:23

Haha it is a plug for an inverter most likely Mastervolt.

Nicholson58 · 22-10-2018, 07:27

It is a DC connector for somewhat high current. Perhaps a small inverter or solar controller. Was some item removed by the PO?

theDangerz · 22-10-2018, 09:16

I have seen the Anderson plugs used quite often in the van/RV world for solar panel installs... typically for anything that might need to be moved/removed.

Is there a solar panel on deck that possibly was intended to be moved (from on side to the other for better sun)??

**EngNate** · 22-10-2018, 09:26

That's a (N American) standard industrial DC power connector, AMP 50 series by TE Connectivity. They come in sizes from 50 to 200 Amp rating. You should notice there is + & - marked on it. They are uni-gender, two same shells and 4 same terminals you have a set. The terminals are easily removed for cleaning or replacement. They're not waterproof at all but the terminals are self-cleaning as they go together and apart so they hold up surprisingly well outdoors and replacement terminals are cheap. I've used these for years on my open fishing boat for my electric downriggers and trap puller. The shells come in different colors and only mate with the same.

https://www.mouser.ca/TE-Connectivit...yzsad7Z1z0spqa

john61ct · 22-10-2018, 11:21

Quote:

Originally Posted by EngNate

AMP 50 series by TE Connectivity

Same as Anderson SB50.

Anderson's design patents have expired I believe.

MAJICDAN · 22-10-2018, 13:02

That plug has been commonly used on the smaller electric walk behind forklift trucks for the last fifty years.
It is a nice medium-duty electric plug. Very dependable.

LargeMarge · 22-10-2018, 15:14

Anderson PowerPole.

We mounted a matching set on our RV with jumper-cables for the boat.

Your photograph shows half of a matching set. The two halves are identical within their rating. They are available in sizes from about 100A all the way to 1000A. Gray and orange are popular colors.

Used for heavy amps. Used by tow-truck operators to temporarily connect jumper-cables, == one half is frame-mounted, the other half is at the end of the jumper-cables opposite the clamps for the dead battery.

john61ct · 22-10-2018, 15:16

Quote:

Originally Posted by LargeMarge

Anderson PowerPole

Nope, that's the lower amp line.

This is SB series.

windcastle1 · 22-10-2018, 15:42

Can’t believe anyone didn’t suggest to plug in a voltmeter to see if any voltage (12,24 etc.) is present.

steve0h · 22-10-2018, 17:08

Quote:

Originally Posted by dgmultimedia

That style plug is used in APC uninterrupted power supplies - as used for PC’s.
they are usually on the replaceable Gel cells in the UPS and as that is the male plug it would be used to receive the female socket on a battery.
Unless it’s been wired incorrectly in terms of its purpose.

These are hermaphrodite connectors - two identical plugs will interconnect without getting the polarity wrong. Unfortunately there are a lot of slightly different plugs available, and they must be identical in order to connect. If you want to use this connection, but cannot find a mate, buy two identical units. The crimp lugs are identical between plugs of the same amp ratings, and you can snap the wire out of the old connector and into a new. Just do it one at a time so you don't short the plugs.

My money is on a power inverter in the range of 500/600 watts. This connector would allow it to be disconnected and stowed out of the way easily. Is it near the battery bank? Ideally you want to mount the inverter with as short a wire as possible on the battery side, and run a regular extension cord to the load.

N132GX · 22-10-2018, 22:49

Probably used to supply power to an amateur radio or SSB rig. Makes for a good low-loss DC connection under heavy loads.

aqua de vida · 22-10-2018, 23:13

....it's called an 'Anderson' plug, used for general low voltage power application.
Generally 12 or 24volt, with a rated amperage of (grey) 50 amps....definitely not waterproof! But a very convenient plug where repeated disconnection is required, eg portable fridge or small dc/ac inverter.....also available in a larger amperage version (physically coloured red)