---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 11/08/13: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:31 AM - Re: Contactors (Sacha) 2. 06:47 PM - Re: Contactors (Robert L. Nuckolls, III) 3. 09:25 PM - Re: Contactors (Sacha) ________________________________ Message 1 _____________________________________ Time: 05:31:16 AM PST US From: "Sacha" Subject: RE: AeroElectric-List: Contactors Recommend you have either a battery contactor or manually operated battery switch. Yup, sounds like a good idea. For what it's worth there is an aircraft at my local field which uses the same automotive "cube" 70A relay that I'm using as a battery contactor. His engine is a Rotax 912 (the certified version although his a/c is not TC being of his own custom design). I measured the peak startup current this morning and it came to 110A, but the automotive relay seems to take this in its stride. The owner told me he's been running that way for 500 hours and 8 years without any problem. ________________________________ Message 2 _____________________________________ Time: 06:47:13 PM PST US From: "Robert L. Nuckolls, III" Subject: RE: AeroElectric-List: Contactors At 07:29 AM 11/8/2013, you wrote: > > Recommend you have either a battery contactor > or manually operated battery switch. > >Yup, sounds like a good idea. For what it's worth there is an aircraft at >my local field which uses the same automotive "cube" 70A relay that I'm >using as a battery contactor. His engine is a Rotax 912 (the certified >version although his a/c is not TC being of his own custom design). I >measured the peak startup current this morning and it came to 110A, but the >automotive relay seems to take this in its stride. The owner told me he's >been running that way for 500 hours and 8 years without any problem. The plastic 'cube' relays I've seen all feature fast-on tabs. The 70A versions too albeit larger ones. How do you make wired connections to this relay with robustness capable of carrying starter current? Can you take some pictures of the installations and post them? Bob . . . ________________________________ Message 3 _____________________________________ Time: 09:25:57 PM PST US Subject: Re: AeroElectric-List: Contactors From: Sacha On Nov 9, 2013, at 3:46, "Robert L. Nuckolls, III" wrote: > The plastic 'cube' relays I've seen all feature > fast-on tabs. The 70A versions too albeit larger > ones. How do you make wired connections to this > relay with robustness capable of carrying starter > current? Can you take some pictures of the installations > and post them? Yes the Faston tabs are 3/8" instead of the regular 1/4". Here's a pic I too k yesterday but its not easy to see how the connections are made on the cube . Sacha Note that he appears to be using something (on the left) that looks to me li ke a battery contactor in lieu of a starter contactor. The master contactor i s the red "384" series cube on the right. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.