Cartridge Fuse Blocks
254 Series OMNI-BLOK
®
Molded Base Fuse Block for 2AG Fuses
Product Characteristics
Compatible
Fuses Size
2AG
This low profile Omni-Blok
®
Fuse Block
design is available with a choice of solder
type terminals, Q.C. terminals or P board
.C.
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.
400 VAC/DC / 10A
1500V., Minimum
Tin-Plated Spring Brass, except pn 254121 is
Tin-Plated Beryllium Copper
Black Thermoplastic, glass reinforced with UL
V0 flammability rating
–40ºC to +85ºC
RoHS
Pb
.50" [12.7] typ.
.110" [2.8] typ.
.190" x .187" deep
[4.83 x 4.75]
C bore with .050" [1.3]
material remaining
.090" [2.3] REF. DIA. Thru
Description
35" [8.9] typ.
Dimensions [mm]
Solder & Q.C. Types:
.50" [12.7] typ.
.110" [2.8] typ.
.35" [8.9] typ.
.190" x .187" deep
[4.83 x 4.75]
C bore with .050" [1.3]
material remaining
.090" [2.3] REF. DIA. Thru
Rating
Dielectric
Strength
.450" [11.4]
centers typ.
B
REF.
Clip/Terminals
Base
Ambient
Temperature
.450" [11.4]
centers typ.
B
REF.
.016"
[0.41]
REF.
.016"
[0.41]
REF.
1.22" [30.2]
[30.2]
1.22"
REF.
REF.
45 .53" [13.5]
.24" [6.1] REF.
REF.
.70"
[17.8]
REF.
45
.53" [13.5]
REF.
Solder type terminals
hole on
feature elongated
hole on clip
Solder type terminals
feature elongated
clip
Agency Approval
Agency
Agency File Number
E14721
7316
.24" [6.1] REF.
P Board Mount Type
.C.
.70"
[17.8]
REF.
.35" [8.9]
REF.
OPTIONS:
1.
.19" [4.8]
REF.
.35" [8.9]
REF.
With 2AG
fuse installed
.50" [12.7]
REF.
Other colors available on special order. Contact factory.
.81"
[20.6]
REF.
.725"[18.42]
.735"[18.67]
Recommended Hole Pattern
.04"
[1.1]
REF.
2. Two different style clips can be supplied for circuit identity or
polarization. Contact factory.
.050"[1.27]
DIA. HOLES
.055"[1.40]
(2 LOCATIONS)
.50" [12.7]
REF.
Additional Information
With 2AG
fuse installed
.81"
[20.6]
REF.
.725"[18.42]
.735"[18.67]
Recommended Hole Pattern
.04"
[1.1]
REF.
.19" [4.8]
REF.
Datasheet
Resources
Samples
.050"[1.27]
DIA. HOLES
.055"[1.40]
(2 LOCATIONS)
© 2018 Littelfuse, Inc.
Application testing is strongly recommended. Specifications are subject to change without notice.
Revised: 01/02/18
Cartridge Fuse Blocks
Ordering Information
Ordering NO.*
02540001Z
02540002Z
02540003Z
02540004Z
02540005Z
02540006Z
02540007Z
02540008Z
02540201Z
02540202Z
02540203Z
02540204Z
02540205Z
02540206Z
02540207Z
02540208Z
02540101Z
02540121Z
Add Suffix:
“Z” =for bulk package
Catalog NO.
254 001
254 002
254 003
254 004
254 005
254 006
254 007
254 008
254 201
254 202
254 203
254 204
254 205
254 206
254 207
254 208
254 101
254 121
No. of Poles
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
1
Width (B) Width [mm] Clip/Terminal Material
Solder Type Terminals
0.35”
0.875”
1.31”
1.75”
2.18”
2.62”
3.06”
3.50”
0.35”
0.875”
1.31”
1.75”
2.18”
2.62”
3.06”
3.50”
0.35”
0.35”
[8.6]
[22.2]
[33.3]
[44.5]
[55.4]
[66.5]
[77
.7]
[88.9]
[8.6]
[22.2]
[33.3]
[44.5]
[55.4]
[66.5]
[77
.7]
[88.9]
[8.6]
[8.6]
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Beryllium Copper
Packaging Available
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
NEMA Style .110” Q.C. Terminals
P Board Mount
.C.
Disclaimer Notice
-
Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete
Disclaimer Notice at:
www.littelfuse.com/disclaimer-electronics.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/02/18