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Charge Controllers and Clippers => The "Classic" charge controller => Topic started by: Kent0 on April 01, 2011, 11:33:09 AM

Title: Aux 1 switch rating
Post by: Kent0 on April 01, 2011, 11:33:09 AM
The manual says the Aux 1 switch contact is limited to 0.5 amp. Can it switch 0.5 amp at 60 volts? I'd like to use it to switch a vent van.
Title: Re: Aux 1 switch rating
Post by: boB on April 01, 2011, 03:04:43 PM
Quote from: Kent0 on April 01, 2011, 11:33:09 AM
The manual says the Aux 1 switch contact is limited to 0.5 amp. Can it switch 0.5 amp at 60 volts? I'd like to use it to switch a vent van.

AC or DC ??

Title: Re: Aux 1 switch rating
Post by: Kent0 on April 02, 2011, 01:50:43 PM
It's a 48-volt dc vent fan. Approx 0.25 amp.
Title: Re: Aux 1 switch rating
Post by: boB on April 02, 2011, 07:12:09 PM
Quote from: Kent0 on April 02, 2011, 01:50:43 PM
It's a 48-volt dc vent fan. Approx 0.25 amp.

I should just try one and report back.  I'll see what I can find.
Wonder if I can put 2 24V fans in series and have them share voltage drops ?
boB
Title: Re: Aux 1 switch rating
Post by: Kent0 on April 02, 2011, 08:00:31 PM
The 48-volt Zephyr (http://zephyrvent.com/Inst.html) vent fan is two 24-volt fans in series.
Title: Re: Aux 1 switch rating
Post by: ibeweagle on April 02, 2011, 08:12:28 PM
ok typo vent fan Mike here think in my option is to use a solid state relay and correct me if Im wrong two jumpers on classic is to the first 1&2 pins jumperd for both jumpers for the output of around 12 volts dc left to right of the 3 pin jumpers have to consult Halfcrazy on this one but have tested on solid state relays and it work perfectly cheers Mike P.S. can get SSR on ebay for a good price for ac and dc types
Title: Re: Aux 1 switch rating
Post by: Kent0 on April 10, 2011, 11:22:07 AM
boB,

What are the manufacturer's specs for the relay contacts? Seems like that should be included in the Classic specifications.
Title: Re: Aux 1 switch rating
Post by: boB on April 10, 2011, 03:30:18 PM
Quote from: Kent0 on April 10, 2011, 11:22:07 AM
boB,

What are the manufacturer's specs for the relay contacts? Seems like that should be included in the Classic specifications.

The relay is like this one, if not the exact same one.  We may also be using a Tyco version
of the same thing.

www.citrelay.com/Catalog%20pages/Relays/J103%20Catalog.pdf

There is a minimum of 1/2 Amp PTC (holding current) PTC in series with the contacts.

I wanted to protect the contacts as best I could without limiting too much.

It's hard to find a small relay that fits with higher current ratings but if anyone knows of a better relay that fits the same footprint, I'm all ears.

boB

Title: Re: Aux 1 switch rating
Post by: Kent0 on April 10, 2011, 06:35:37 PM
Thanks boB. It looks like a 48-volt Zephyr vent fan shouldn't be a problem.