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Old 03-31-2010, 09:40 AM   #1
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Solenoid question

Just got a used windlass. I need to buy a solenoid to install it. Would this work?

http://www.allelectronics.com/make-a...ENOID/-/1.html
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Old 03-31-2010, 01:28 PM   #2
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RE: Solenoid question

It depends on the amperage draw of the used windlass and the length of your supply cables ( they could add to the amp draw). Some solenoids get their negative source from the mounting bracket, others have a + and -terminal that completes the circuit for the pull in coil. I forgot to check if this one is for "continuous duty". Recommended I would think for an application like a windlass.
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Old 03-31-2010, 08:58 PM   #3
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RE: Solenoid question

You need something with a continuous duty cycle. sometimes hauling up takes quite a while, at 1 ft per second, to haul 350 ft of rode takes, well, 350 seconds, so a continuous dty cycle of 10 to 40 seconds wont cut it.
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Old 04-01-2010, 04:29 AM   #4
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RE: Solenoid question

Intermittent, 50% duty cycle. 10 seconds on.

Might work for some of the crapo bow thrusters with their limited duty cycle , but WRONG for a windlas.

350A is good , as the battery voltage may be dropping as you grind in the ground tackle.
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Old 04-01-2010, 01:42 PM   #5
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RE: Solenoid question

Not sure I understand the continuous vs intermittent duty cycle. Can someone explain?
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Old 04-01-2010, 11:37 PM   #6
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RE: Solenoid question

A solenoid that is used for something like a starting motor is designed to pull in, and be released in say 5-15 seconds when the engine starts. In an application where the solenoid will be pulled in much longer- it must be able to withstand the additional heat I assume. "Continuous Duty". I have seen solenoids that had one set of windings to make a magnetic field to pull in the contactor and a second set of windings designed to hold in the contactor. Maybe CD is someting like this.
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Old 04-02-2010, 12:25 PM   #7
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RE: Solenoid question

If it is larger than the original check the size of the wire. to small a wire can sure get hot.

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