© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/02/18
Cartridge Fuse Blocks
RoHS
Pb
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.
Compatible
Fuses Size 2AG
Description
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.
Rating 400 VAC/DC / 10A
Dielectric
Strength 1500V., Minimum
Clip/Terminals Tin-Plated Spring Brass, except pn 254121 is
Tin-Plated Beryllium Copper
Base Black Thermoplastic, glass reinforced with UL
V0 flammability rating
Ambient
Temperature –40ºC to +85ºC
Product Characteristics
Solder & Q.C. Types:
P.C. Board Mount Type
.35" [8.9]
REF.
.50" [12.7]
REF.
.81"
[20.6]
REF.
.04"
[1.1]
REF.
.19" [4.8]
REF.
.725"[18.42]
.735"[18.67]
.050"[1.27]
.055"[1.40]
DIA. HOLES
(2 LOCATIONS)
Recommended Hole Pattern
.190" DIA. X .187" DEEP C' BORE
Typ. with .050" Typ. material remaining.
1.22" [30.2]
REF.
.70"
[17.8]
REF.
.24" [6.1] REF.
.53" [13.5]
REF.
.016"
[0.41]
REF.
.090" REF. DIA. THRU
45
B
REF.
.450" [11.4]
centers typ.
.190" x .187" deep
[4.83 x 4.75]
C bore with .050" [1.3]
material remaining .090" [2.3] REF. DIA. Thru
Solder type terminals
feature elongated
hole on clip
With 2AG
fuse installed
.35" [8.9] typ.
.110" [2.8] typ.
.50" [12.7] typ.
.35" [8.9]
REF.
.50" [12.7]
REF.
.81"
[20.6]
REF.
.04"
[1.1]
REF.
.19" [4.8]
REF.
.725"[18.42]
.735"[18.67]
.050"[1.27]
.055"[1.40]
DIA. HOLES
(2 LOCATIONS)
Recommended Hole Pattern
.190" DIA. X .187" DEEP C' BORE
Typ. with .050" Typ. material remaining.
1.22" [30.2]
REF.
.70"
[17.8]
REF.
.24" [6.1] REF.
.53" [13.5]
REF.
.016"
[0.41]
REF.
.090" REF. DIA. THRU
45
B
REF.
.450" [11.4]
centers typ.
.190" x .187" deep
[4.83 x 4.75]
C bore with .050" [1.3]
material remaining .090" [2.3] REF. DIA. Thru
Solder type terminals
feature elongated
hole on clip
With 2AG
fuse installed
.35" [8.9] typ.
.110" [2.8] typ.
.50" [12.7] typ.
Dimensions [mm]
Agency Approval
Agency Agency File Number
E14721
7316
254 Series OMNI-BLOK® Molded Base Fuse Block for 2AG Fuses
Application testing is strongly recommended.
Additional Information
Datasheet Samples
Resources
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/02/18
Cartridge Fuse Blocks
Ordering NO.* Catalog NO. No. of Poles Width (B) Width [mm] Clip/Terminal Material Packaging Available
Solder Type Terminals
02540001Z 254 001 1 0.35” [8.6] Brass Z
02540002Z 254 002 2 0.875” [22.2] Brass Z
02540003Z 254 003 3 1.31” [33.3] Brass Z
02540004Z 254 004 4 1.75” [44.5] Brass Z
02540005Z 254 005 5 2.18” [55.4] Brass Z
02540006Z 254 006 6 2.62” [66.5] Brass Z
02540007Z 254 007 7 3.06” [77.7] Brass Z
02540008Z 254 008 8 3.50” [88.9] Brass Z
NEMA Style .110” Q.C. Terminals
02540201Z 254 201 1 0.35” [8.6] Brass Z
02540202Z 254 202 2 0.875” [22.2] Brass Z
02540203Z 254 203 3 1.31” [33.3] Brass Z
02540204Z 254 204 4 1.75” [44.5] Brass Z
02540205Z 254 205 5 2.18” [55.4] Brass Z
02540206Z 254 206 6 2.62” [66.5] Brass Z
02540207Z 254 207 7 3.06” [77.7] Brass Z
02540208Z 254 208 8 3.50” [88.9] Brass Z
P.C. Board Mount
02540101Z 254 101 1 0.35” [8.6] Brass Z
02540121Z 254 121 1 0.35” [8.6] Beryllium Copper Z
Ordering Information
“Z” =for bulk package
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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.
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Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Littelfuse:
02540204Z 02540202Z 02540004Z 02540207Z 02540001Z 02540201Z 02540003Z 02540006Z 02540208Z
02540206Z 02540002Z 02540122Z 02540205Z 02540007Z 02540203Z 02540005Z 02540101Z 02540121Z
02540008Z
