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80 amp relay suggestions

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Pj
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80 amp relay suggestions

Postby Pj » Sun Dec 08, 2013 1:06 pm

Been doing some Googling, but can't seem to find a *good* *cheap* relay with screw terminals.

I'll be using one with a charge guard to kill all accessories in a couple of vehicles to help with parasitic loads, with people who just can't turn things off of have too much of a standby load. Just going to use the charge guard to trip the relay on when the vehicle is running.

Figuring an 80amp should more than cover the amprage with the lights and radios going to be safe. I don't want to have to make new A+ connectors so I can just take that off the battery and screw right into the relay.
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abbylind
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Re: 80 amp relay suggestions

Postby abbylind » Sun Dec 08, 2013 5:24 pm

Used to use the starter relays in older Fords. Try NAPA or an auto parts stores. Should be fairly easy to find.
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abbylind
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Re: 80 amp relay suggestions

Postby abbylind » Sun Dec 08, 2013 5:28 pm

I picked this one off a 77 Ford F150 as an example

http://www.autozone.com/autozone/parts/ ... ing=search
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Re: 80 amp relay suggestions

Postby Dorf411 » Sun Dec 08, 2013 5:51 pm

Been using NAPA ST-95

tvsjr
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Re: 80 amp relay suggestions

Postby tvsjr » Sun Dec 08, 2013 11:57 pm

http://www.tessco.com/products/displayP ... ventPage=1

I have three in the current build - one for each master stage and one for the 600-watt inverter.

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Re: 80 amp relay suggestions

Postby RFguy » Mon Dec 09, 2013 8:34 am

We use these. They have series/parallel diodes installed so save time in the field adding them.

http://www.waytekwire.com/item/75552/PO ... -SPST-75A/

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Re: 80 amp relay suggestions

Postby RFguy » Mon Dec 09, 2013 8:42 am

abbylind wrote:Used to use the starter relays in older Fords. Try NAPA or an auto parts stores. Should be fairly easy to find.


Typically, starter solenoids are not rated for continuous duty.

Dorf411 wrote:Been using NAPA ST-95


According to the NAPA site, the ST-95 is a starter solenoid. As such, it may not be rated for continuous duty.

jhooten
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Re: 80 amp relay suggestions

Postby jhooten » Mon Dec 09, 2013 1:39 pm

Golf cart control relays are rated for high amperage and continuous duty.

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Re: 80 amp relay suggestions

Postby Dorf411 » Mon Dec 09, 2013 2:59 pm

RFguy wrote:
Dorf411 wrote:Been using NAPA ST-95


According to the NAPA site, the ST-95 is a starter solenoid. As such, it may not be rated for continuous duty.


Specs we found on NAPA ST-95 is 80 Amps, 16-20 ohm coil and continuous duty with copper contacts. Those relays do look like a good option as well.

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Re: 80 amp relay suggestions

Postby thebigphish » Mon Dec 16, 2013 8:34 pm

tvsjr wrote:http://www.tessco.com/products/displayProductInfo.do?sku=380830&eventGroup=4&eventPage=1

I have three in the current build - one for each master stage and one for the 600-watt inverter.


3 in each unit, fleet of 10...haven't replaced one yet.
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Re: 80 amp relay suggestions

Postby Wowbagger » Tue Dec 17, 2013 10:23 am

http://www.hellroaring.com/bic75150.php

FET based, 0.01 ohm or less on resistance, switches on automatically on Vin>13.0VDC, can be manually enabled or disabled.
This is my opinion, not Aeroflex's.

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I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.


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