If the power brick is only intended for removal by a qualified service
Engineer, the marking need only be applied to the external rear panel
visible to the user - based on my experience of having units qualified to EN
60065. 

Chris

-----Original Message-----
From: Davis, Mike [mailto:[email protected]]
Sent: 25 January 2001 20:16
To: EMC-PSTC Regulatory E-Mail (E-mail)
Subject: Fuse Markings



Thanks to all who responded to my question of what are the letter
designations for blow open speeds of fuses.

The consensus of responses were the following:

N 60127-1 1991 Clause 6.1d

FF: denoting very quick acting
F: denoting quick acting
M: denoting medium time-lag
T: denoting time-lag
TT: denoting long time-lag

I have another question. 

A slide in power supply module has an externally accessible and replaceable
fuse located at the rear panel of the module.  When the power supply module
is inserted into the chassis, the fuse is then only is accessible through a
slot in the rear panel of the chassis. Where is the appropriate place to
locate the power ratings; on the chassis rear panel, the module rear panel
or both. 
Service personnel has a choice to either replace the fuse from the rear of
the chassis or merely remove the power supply module, then replace the fuse.

Michael S. Davis
Compliance Engineer
ADC BATG Compliance Engineering
Tel:  203 630-5788
Fax:  203 630-5762
[email protected]      

        
Learn about ADC - The Broadband Company at www.adc.com 



 

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