Cartridge Fuse Blocks 254 Series OMNI-BLOK® Molded Base Fuse Block for 2AG Fuses RoHS Pb Product Characteristics Compatible Fuses Size .190" x .187" deep C bore with .050" material remaining .50" typ. .090" REF. DIA. Thru .110" typ. .35" typ. Description Dimensions Solder & Q.C. Types: .190" x .187" deep C bore with .050" material remaining .50" typ. .090" REF. DIA. Thru .110" typ. .35" typ. .450" centers typ. B REF. .450" centers typ. 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. 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 94V0 flammability rating Ambient Temperature –40ºC to +85ºC B REF. Solder type terminals feature elongated 1.22" REF. Solder type terminals hole on clip feature elongated hole on clip 1.22" REF. Agency .016" REF. .016" REF. Agency Approval Agency File Number 45 .53" REF. E14721 45 .53" REF. .24" REF. .70" REF. 7316 .24" REF. .70" REF. OPTIONS: P.C. Board Mount Type.35" REF. 1. Other colors available on special order. Contact factory. .35" REF. .81" REF. With 2AG fuse installed .50" REF. With 2AG fuse installed 2. Two different style clips can be supplied for circuit identity or polarization. Contact factory. .50" REF. .725" .735" .04" REF. .19" REF. Additional Information .050" DIA. HOLES .055" (2 LOCATIONS) Recommended Hole Pattern .81" REF. .725" .735" .04" REF. .19" REF. .050" DIA. HOLES .055" (2 LOCATIONS) Recommended Hole Pattern © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 05/26/15 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 0.875” Brass Z 0254 0003Z 254 003 3 1.31” Brass Z 0254 0004Z 254 004 4 1.75” Brass Z 0254 0005Z 254 005 5 2.18” Brass Z 0254 0006Z 254 006 6 2.62” Brass Z 0254 0007Z 254 007 7 3.06” 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 0.875” Brass Z 0254 0203Z 254 203 3 1.31” Brass Z 0254 0204Z 254 204 4 1.75” Brass Z 0254 0205Z 254 205 5 2.18” Brass Z 0254 0206Z 254 206 6 2.62” Brass Z 0254 0207Z 254 207 7 3.06” 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 © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/26/15