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Author Topic: Suitable motor wiring?  (Read 372 times)

SimonCornes

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Suitable motor wiring?
« on: September 19, 2021, 12:28:31 pm »

This is a bit basic but I need to get some wire for my tug. Twin CEM 900ís on 12v through an Mtronic 30 amp ESC. So what wire would you recommend and where from please?
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Rich griff

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Re: Suitable motor wiring?
« Reply #1 on: September 19, 2021, 01:26:51 pm »

Check out component shop on the internet, they may sell suitable wire by the meter...
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Colin Bishop

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Re: Suitable motor wiring?
« Reply #2 on: September 19, 2021, 01:56:16 pm »

Yes, Component Shop. Their very flexible silicon wire is ideal and the 12 or 14swg sizes should be fine. Continuous current ratings are given but not at what voltage.

https://www.componentshop.co.uk/cable/silicon-cables.html

Colin
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SimonCornes

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Re: Suitable motor wiring?
« Reply #3 on: September 19, 2021, 03:10:42 pm »

Thanks guys. Just bought a roll of red and one of black - 12 gauge. Not sure how much on a roll but it looks quite a bit. Now I think I need a new soldering iron to get enough heat into that multi strand stuff!!
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Colin Bishop

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Re: Suitable motor wiring?
« Reply #4 on: September 19, 2021, 03:38:59 pm »

Glynn Guest has reminded me that the current carrying capacity of wire doesn't vary with the voltage - I was proably confusing it with switch contacts where high voltage can cause arcing.

Simon, yes, that wire does need quite a bit of heat to solder! However you can use Wago connectors for some joints. Have a look at post #65 onwards on this thread:

https://www.modelboatmayhem.co.uk/forum/index.php/topic,48284.msg700636.html#new

Colin
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SimonCornes

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Re: Suitable motor wiring?
« Reply #5 on: September 20, 2021, 12:17:48 am »

Iím afraid Iím old fashioned Colin, I like solder but Iíll use chocolate block connectors in between the motors an speed controllers and I really aught to fit fuses between motor and esc to protect the escís - too expensive to fry!!
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Fred Ellis

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Re: Suitable motor wiring?
« Reply #6 on: September 20, 2021, 08:58:08 am »

Hi
Over the years I have picked up a lot of different leads that are used with computer's, that is what I use to wire the motors in my boats, if it can take 240 volts then it can take 6/12 volts.

Fred
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That's all right, Mr Ryan. My Morse is so rusty, I could be sending him dimensions on Playmate of the Month.

SimonCornes

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Re: Suitable motor wiring?
« Reply #7 on: September 20, 2021, 11:29:17 am »

Fair point Fred but I tend to worry more about the amps than the volts! The stuff I've ordered should be fine though. Now Ive got to find a charger for my Planet T5 transmitter. Bought 15 years ago and not powered up until today. Only 4 x AA's, very odd in my book!! And a 1.5mm pin in the Tx socket so I'm scrabbling around to find a 4.8v charger with that sort of plug!!
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Colin Bishop

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Re: Suitable motor wiring?
« Reply #8 on: September 20, 2021, 11:48:37 am »

If they are individual AA cells and it is a 2.4Ghz TX you might as well just use alkaline cells. Better voltages and last a long time.

Another alternative which I use is the low self discharge rechargeables:

https://www.componentshop.co.uk/aa-2500mah-nimh-low-self-discharge-batteries-pk-4.html

I just use a plug in wall charger to charge them out of the Transmitter.

Colin
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roycv

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Re: Suitable motor wiring?
« Reply #9 on: September 20, 2021, 12:10:05 pm »

If you have an independent motorists supply shop nearby they are a good source of electrical things we use including wiring, fuses etc.   Otherwise I use The Component Shop for batteries.
Do not be seduced by cheap batteries from China!  What is printed on the battery is mainly fiction.
regards
Roy
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SimonCornes

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Re: Suitable motor wiring?
« Reply #10 on: September 20, 2021, 12:23:33 pm »

If they are individual AA cells and it is a 2.4Ghz TX you might as well just use alkaline cells. Better voltages and last a long time.

Another alternative which I use is the low self discharge rechargeables:

https://www.componentshop.co.uk/aa-2500mah-nimh-low-self-discharge-batteries-pk-4.html

I just use a plug in wall charger to charge them out of the Transmitter.

Colin


Thanks Colin, I'm so used to the idea of plugging a charger into the Tx and the thought that taking batteries out of tx's regularly isn't a good idea! But at that price for 4 AA's thats cheap as hinds. Ive actually got 4 1300Mah AA's in a wall charger right now so I may live with that but if I can find a suitable charger - for about £5 I imagine? - then I'll got for it!
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SimonCornes

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Re: Suitable motor wiring?
« Reply #11 on: September 20, 2021, 12:24:51 pm »

If you have an independent motorists supply shop nearby they are a good source of electrical things we use including wiring, fuses etc.   Otherwise I use The Component Shop for batteries.
Do not be seduced by cheap batteries from China!  What is printed on the battery is mainly fiction.
regards
Roy
Thanks Roy. I was thinking about Halfords or an independent for some spade connectors! I need to have a dig through my existing radio gear to see what I already have - its been awhile!
Simon
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