I noticed in the catalog link of the original post that there is a “Latching Solenoid” Apparently current is only applied to the coil when you want to turn it on or off. The one thing to think about though is that you have to apply current to the coil to turn it off.
It is model number 24200 in the link below:
Cole Hershee 24115 (http://www.elecdirect.com/Data/ProductPDFs/CHh1.pdf)
--Kevin
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bill Wade
Sent: Thursday, May 03, 2012 6:28 AM
To: lml@lancaironline.net
Subject: [LML] Re: Contactors vs Solid State Relays
I’m of the same vintage as the relay but considerably more failure prone and less predictable- probably the weakest link in the whole plane.
I’ve had some experience with antique vehicles so I imagine the lacquer on the windings and insulation materials would still be good- I’m curious about the resistance readings. I have a very basic education from studying The AeroElectric Connection 15 years ago so I hope to learn more.
I’m guessing the Leach has more windings of finer wire. Would that make it more likely to overheat than the Lancair unit? Does it suggest anything about the intended applications?