Return-Path: Received: from lanfear.nidlink.com ([216.18.128.7]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Wed, 21 Jul 1999 10:15:56 -0400 Received: from enaila.nidlink.com (root@enaila.nidlink.com [216.18.128.8]) by lanfear.nidlink.com (8.9.0/8.9.0) with ESMTP id HAA21102 for ; Wed, 21 Jul 1999 07:19:13 -0700 (PDT) Received: from regandesigns.com (tnt132-173.nidlink.com [216.18.132.173]) by enaila.nidlink.com (8.9.0/8.9.0) with ESMTP id HAA26555 for ; Wed, 21 Jul 1999 07:19:12 -0700 (PDT) Message-ID: <3795D6AB.75D85017@regandesigns.com> Date: Wed, 21 Jul 1999 07:18:19 -0700 From: Brent Regan To: lancair.list@olsusa.com Subject: Re: Master relay References: <19990721043956.AAA21872@truman.olsusa.com> X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> These relays come in two flavors, intermittent and continuos duty solenoid coils. Intermittent duty solenoids actuate faster than continuous duty solenoids so are less prone to arcing of the contacts but will overheat if power is supplied to the solenoid coil continuously. Intermittent duty solenoids should be used for starter motors and continuos duty solenoids should be used for master relays. I suspect you are using an intermittent duty solenoid for a master relay and it is overheating but I may also be wrong and "too hot to touch" may be the "normal operating temperature". Too hot to touch is between 130 and 140 degrees Fahrenheit and the maximum. Stancore lists the maximum ambient temperature for their contactors at 149 degrees Fahrenheit. Cross check the part number of yours with the manufacturer to be sure. Regards Brent Regan >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html