[INCH-POUND]
A-A-55509D
29 November 2012
SUPERSEDING
A-A-55509C
3 May 2007
COMMERCIAL ITEM DESCRIPTION
FUSE, INDICATOR ALARM
The General Services Administration has authorized the use of this
commercial item description (CID) for all federal agencies.
1. SCOPE. This commercial item description (CID) covers the general requirements for indicator alarm
fuses. Fuses covered by this CID are intended for commercial/industrial applications.
2. CLASSIFICATION/PART OR IDENTIFICATION NUMBER (PIN). This CID uses a classification
system which is included in the PIN as shown in the following example (see 7.1).
AA55509
-
001
CID
Dash number
number
(see table I)
3. SALIENT CHARACTERISTICS.
3.1 Interface and physical dimensions. Fuses supplied to this CID shall be as specified herein (see
figure 1).
3.2. Ampere rating. The ampere rating shall be as specified in table I.
3.3 Voltage rating. The voltage rating shall be 125 V ac, 60 V dc.
3.4 Opening time. The opening time shall be as specified in table II.
3.5 Fuse body. The fuse body shall be black phenolic with UL 94HB flammability rating as a minimum.
3.6 Contacts. Contacts shall be bright alloy plated beryllium copper
3.7 Marking. Fuses supplied to this CID shall be marked with the manufacturer's (MFR's) standard
commercial PIN. (NOTE: The part number marked on the unit pack shall be the CID PIN.)
Beneficial comments, recommendations, additions, deletions, clarifications, etc., and any data which may
improve this document should be sent to: DLA Land and Maritime, ATTN: VAT, P.O. Box 3990,
Columbus, OH 43218-3990, or email mailto:Circuit Pr ot ect @d l a. m il . Si n ce con t act i n f or m at i on can
ch an g e y ou m ay w an t t o v er i f y t h e cu r r en cy of t h e ad d r ess i n f or m at i on u si n g t h e ASSI ST
On li n e d at ab ase at ht t p s: / / assi st . d l a. m il .
AMSC N/A
FSC 5920
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