Littelfuse 254 User Manual
Cartridge Fuse Blocks
1.22"
REF.
.70"
REF.
.24" REF.
.53"
REF.
.016"
REF.
45
B
.450"
centers typ.
.70" typ.
.190" x .187" deep
C bore with .050"
material remaining
.090" REF. DIA. Thru
Solder type terminals
feature elongated
hole on clip
.35" typ.
.110" typ.
.50" typ.
1.22"
REF.
.70"
REF.
.24" REF.
.53"
REF.
.016"
REF.
45
B
.450"
centers typ.
.70" typ.
.190" x .187" deep
C bore with .050"
material remaining
.090" REF. DIA. Thru
Solder type terminals
feature elongated
hole on clip
.110" typ.
.50" typ.
254 Series OMMI-BLOK® Molded Base Fuse Block for 2AG Fuses
Product Characteristics
Dimensions
Solder & q.C. Types:
Compatible
Fuses Size
Description
Dielectric
Strength
Clip/Terminals
Base
Ambient
Temperature
2AG
This low profile Omni-Blok
®
Fuse Block
design is available with a choice of solder
type terminals, Q.C. terminals or P.C.
board mountable terminals. The PCB
design is offered with either tin-plated
brass terminals for normal applications or
tin-plated beryllium copper terminals for
use in caustic environments. These fuse
blocks feature individual barriers which
reinforce the fuse clips while providing
greater protection against clip damage
and electrical shock. The unique design
permits self-alignment of clips to fuse
cap. This, plus a one-piece clip/terminal
assures low contact resistance. Multiple
units may be broken apart to obtain
desired number of units.
1500V., Minimum
Tin-Plated Spring Brass, except pn 254121 is
Tin-Plated Beryllium Copper
Black Thermoplastic, glass reinforced with
UL 94V0 flammability rating
–40ºC to +85ºC
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
P.C. Board Mount Type
With 2AG
fuse installed
.81"
REF.
.730"
.005"
.35"
REF.
.50"
REF.
Recommended Hole Pattern
.04"
REF.
.050"
.055"
.19"
REF.
DIA. HOLES
(2 LOCATIONS)
Agency Approval
Agency Agency File Number
E14721
LR7316
OPTIONS:
1. Other colors available on special order. Contact factory.
2. Two different style clips can be supplied for circuit identity or
polarization. Contact factory.
Additional Information
Datasheet
Resources
Samples
Cartridge Fuse Blocks
Ordering Information
Ordering NO.* Catalog NO. No. of Poles Width (B) Clip/Terminal Material Packaging Available
Solder Type Terminals
0254 0001Z 254 001 1 0.35” Brass Z
0254 0002Z 254 002 2 0.80” Brass Z
0254 0003Z 254 003 3 1.25” Brass Z
0254 0004Z 254 004 4 1.70” Brass Z
0254 0005Z 254 005 5 2.15” Brass Z
0254 0006Z 254 006 6 2.60” Brass Z
0254 0007Z 254 007 7 3.05” Brass Z
0254 0008Z 254 008 8 3.50” Brass Z
NEMA Style .110” q.C. Terminals
0254 0201Z 254 201 1 0.35” Brass Z
0254 0202Z 254 202 2 0.80” Brass Z
0254 0203Z 254 203 3 1.25” Brass Z
0254 0204Z 254 204 4 1.70” Brass Z
0254 0205Z 254 205 5 2.15” Brass Z
0254 0206Z 254 206 6 2.60” Brass Z
0254 0207Z 254 207 7 3.05” Brass Z
0254 0208Z 254 208 8 3.50” Brass Z
P.C. Board Mount
02540101Z 254 101 1 0.35” Brass Z
02540121Z 254 121 1 0.35” Beryllium Copper Z
Add Suffix:
“Z” =for bulk package
Specifications are subject to change without notice.
© 2013 Littelfuse, Inc.
Revised: 12/19/13
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