Return-Path: Received: from ddi.digital.net ([198.69.104.2]) by truman.olsusa.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-44819U2500L250S0) with ESMTP id AAA16063 for ; Sun, 20 Sep 1998 15:34:30 -0400 Received: from john (max-roc6-30.digital.net [208.14.38.30]) by ddi.digital.net (8.9.1/8.9.1) with SMTP id PAA19680 for ; Sun, 20 Sep 1998 15:34:22 -0400 (EDT) Message-Id: <3.0.3.32.19980920153304.00771958@mail.digital.net> Date: Sun, 20 Sep 1998 15:33:04 -0400 To: lancair.list@olsusa.com From: John Cooper Subject: Flap Relays X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> for Dan Schaefer I refused to use those cheap-a** Radio Shack flap relays that came with the kit. Those were never designed to carry inductive loads like the flap acuator on the Lancair (11A inrush). I bought myself some Bosch "Mini-Giant" automotive relays which were rated for this kind of service. I used part no. 0 332 204 125 SPDT. The NO contact is rated at 24A inductive, and the NC is rated at 16A inductive. These contacts are rated at 100,000 cycles switching the rated inductive load. They have Fast-On terminals, and a single hole mounting bracket. I used MOVs across the contacts for good measure. I am using Bosch 0 332 002 150 relays to control my hydraulic power pack as well. Rated for 80,000 cycles switching a 60A inductive load, they weigh 1/3 as much as the boat-anchors supplied with the kit. Will take a 400 A inrush for 1 sec. Coil current on this one is only 260ma as well. Cost about $10 each. I have been touting these Bosch relays for years now, both to Neico, and to Bob Nuckolls. So far no one has expressed any interest that I am aware of...