I would like to echo Scott's warning to read the fine print especially
with the Bussman catalog, it can be misleading.  Do not assume that all
fuses listed in the series contains the UL/IEC ratings.  Often the ones
with the ones with the higher ratings have no agency approvals or it may
be approved at a lower current/voltage than what is listed in the
catalog.  I have been burned on this.  Each individual fuse should be
checked for the applicable agency ratings.

Darrell Locke
Advanced Input Devices
 ----------
From: DouglasScott
To: Stephen C. Phillips
Cc: emc-pstc
Subject: RE: Re[2]: Concerning Fuses
List-Post: [email protected]
Date: Thursday, October 23, 1997 5:57AM

Stephen,

Yes. In the 1995 Bussmann Circuit Protection Solutions catalog, there
are two series of 5x20mm fuses. The C515 through C520 types are UL /
CSA. The GDA, GDB and GDC types are IEC as well as UL. Not all versions
have all approvals so read the fine print.

In the Littlefuse Electronic Designer's Guide catalog, the 215 through
218 and 221, 226 through 228 types are UL and IEC. Again, not all
versions have all approvals so check them out.

Note that IEC 127 for 5x20mm fuses does not include ratings for above
6.3 amps.

Finally, I have indeed used the type of fuseholder where either fuse
fits into the touch-safe holder and we just change the cap for the
proper size fuse. Forgot about that. For panel mount or p.c. mount, look
at the Littlefuse 345 series. From Bussmann, look at the HTB series for
panel mnount and the HTC or HBH/HBV/HBW series for p.c. mount.

Regards,

Scott douglas
[email protected]

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