Posted for Robert Mitchell <rmitch1@hughes.net>:

 Gary,
 
 Can you quote a Digikey part number for the Panasonic relay or the Tyco for
that matter?
 
 Bob Mitchell
 L-320
 
[I've attached a file that has been shared here several times before... it's a reprint of several pages from the LNN that discuss the use of Bosch relays, contact protection, and other issues LNC2 hydraulic related.  Enjoy....  <Marv>    ]


 
 On Feb 9, 2011, at 12:23 PM, "Gary Fitzgerald" <gbfitz@swbell.net> wrote:
 
> If you’re still building, or just want to upgrade your hydraulic system
>controls from 1940’s automotive parts to 21st century automotive parts,
>consider Tyco’s VF7 series of relays or an equivalent.  Their contacts are
>rated for 70 Amps, however the coils draw less than 200ma.  You’ll also save a
>few pounds.  Digikey has an equivalent model (Panasonic CB series) for about
>$5.00.
>
>  
>
> Gary Fitzgerald
>
> LNC2 ~70%
>
> Engine: TBD
>
> St. Charles, MO
>
>  
>
> From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
>Wolfgang
> Sent: Wednesday, February 09, 2011 10:04 AM
> To: lml@lancaironline.net
> Subject: [LML] Re: LNC2 Hydraulic Landing Gear Pressure Switch Wear Issues
>
>  
>
> 500ma contact rating for a pressure switch will never work on a solenoid
>operated hydraulic pump.
>
> As Bill just indicated, 4 amps to the solenoid that runs the pump is typical.
>
>