> Paul, > > I had a similar situation where we incorporated a decorative plastic trim > around an operator keypad outside our fire enclosure and HB min. was > recommended and accepted by UL. > > > George > > -----Original Message----- > From: Paul Smith [SMTP:[email protected]] > Sent: Wednesday, September 22, 1999 12:13 PM > To: [email protected] > Subject: UL1950 Flammibility Requirements > > > We are about to trial a protype unit that has a user interface of about 36 > keys in 6 by 6 matrix. We are considering replacing the individual keys > with a single moulded rubber keypad. > What flammibility should we be looking to use. (The unit is outside of a > fire enclosure, is 24 volts and the power source is limited) > Reading 1950 it would appear that V2 (minimum) is required. It has been > suggested that the material could be rated as low as HB, but i'm not so > sure. > Anybody have any views? > > Thanks > > Paul > > > Excite -- Control Yourself. > This E-mail brought to you by Excite's free E-mail service. > Get your own E-mail address at http://www.excite.co.uk > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). >
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